chaos | d09b875ead838ec256b863b5e8e252d5bca9172b5479b00699ff31b4d745c92b

Analysis

max time kernel
118s
max time network
155s
platform
windows7_x64
resource
win7v20210410
submitted
04-08-2021 13:01

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General

Target

Chaos Ransomware.exe
Size

23KB
MD5

98274f8ae42ac490c3441b3b14459356
SHA1

59a80c57499b6eb5de31fcbf582eeeb1c3b20e9d
SHA256

d09b875ead838ec256b863b5e8e252d5bca9172b5479b00699ff31b4d745c92b
SHA512

d436397c25a6147a791a78724cbd41d7eede4736f292760a4c7d1785b05b32953b469deec87712d8e447dda362820353393c7fc29a6e74d15c25a8233a9d9cfd

Score

10^/10

chaos ransomware

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral1/files/0x0004000000013105-62.dat	family_chaos
behavioral1/files/0x0004000000013105-63.dat	family_chaos

Executes dropped EXE 1 IoCs

pid	Process
1956	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1748	1956	WerFault.exe	26

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1664	Chaos Ransomware.exe
1664	Chaos Ransomware.exe
1956	svchost.exe
1956	svchost.exe
1748	WerFault.exe
1748	WerFault.exe
1748	WerFault.exe
1748	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1748	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1664	Chaos Ransomware.exe
Token: SeDebugPrivilege	1956	svchost.exe
Token: SeDebugPrivilege	1748	WerFault.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 1956	1664	Chaos Ransomware.exe	26
PID 1664 wrote to memory of 1956	1664	Chaos Ransomware.exe	26
PID 1664 wrote to memory of 1956	1664	Chaos Ransomware.exe	26
PID 1956 wrote to memory of 1748	1956	svchost.exe	27
PID 1956 wrote to memory of 1748	1956	svchost.exe	27
PID 1956 wrote to memory of 1748	1956	svchost.exe	27

C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware.exe
"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 1956 -s 564
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1664-59-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/1748-67-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

Filesize
8KB

Download
memory/1748-68-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/1956-64-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download