(ESET) This backdoor shares multiple similarities with another backdoor used by the group: {{CrossWalk}}. SideWalk is a modular backdoor that can dynamically load additional modules sent from its C&C server, makes use of Google Docs as a dead drop resolver, and uses Cloudflare workers as a C&C server. It can also properly handle communication behind a proxy.
| TA0043 | TA0042 | TA0001 | TA0002 | TA0003 | TA0004 | TA0005 | TA0006 | TA0007 | TA0008 | TA0009 | TA0011 | TA0010 | TA0040 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
| IP:Port | Timestamp |
|---|
| Domain | Timestamp |
|---|
| URL | Timestamp |
|---|
2023-07-18 by Mandiant Intelligence from Mandiant
2022-09-14 by Vladislav Hrčka from ESET Research
2021-09-09 by Threat Hunter Team from Symantec
2021-08-25 by Hara Hiroaki from Trend Micro
2021-08-24 by Thibaut Passilly from ESET Research
Tool: SideWalk
Names: SideWalk, ScrambleCross
Description: (ESET) This backdoor shares multiple similarities with another backdoor used by the group: {{CrossWalk}}. SideWalk is a modular backdoor that can dynamically load additional modules sent from its C&C server, makes use of Google Docs as a dead drop resolver, and uses Cloudflare workers as a C&C server. It can also properly handle communication behind a proxy.
Category: Malware
Type: Reconnaissance, Backdoor
Information: https://www.welivesecurity.com/2021/08/24/sidewalk-may-be-as-dangerous-as-crosswalk/
Information: https://documents.trendmicro.com/assets/white_papers/wp-earth-baku-an-apt-group-targeting-indo-pacific-countries.pdf
Information: https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/grayfly-china-sidewalk-malware
Malpedia: https://malpedia.caad.fkie.fraunhofer.de/details/win.sidewalk
Last-card-change: 2021-12-28
Source: https://apt.etda.or.th/cgi-bin/listtools.cgi
| TA0043 | TA0042 | TA0001 | TA0002 | TA0003 | TA0004 | TA0005 | TA0006 | TA0007 | TA0008 | TA0009 | TA0011 | TA0010 | TA0040 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |