chaos | 41aec0ed3bc8bd1d989c22e50b447a88740505fed4113c0ebe4e1e1792fef3d5

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 05:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dd52f625ebf11a32c79f2925bb2b6bd0.exe
Size

64KB
MD5

dd52f625ebf11a32c79f2925bb2b6bd0
SHA1

381c59f582f006702e1f797fb10cf0e412bb700a
SHA256

41aec0ed3bc8bd1d989c22e50b447a88740505fed4113c0ebe4e1e1792fef3d5
SHA512

49588a8bd9d59b1811332726207b8abc4c6f24918f0c8563e237467ad8450e8727a3f6f0677d8ec0917094df27acd46a59debcc40d8bea9d15956a9000a71254
SSDEEP

1536:uOItYxqnAC6ph6ggxX4elW2GJYfGAQ61INw+:fI+xSL6CfxoZ2GJJAQw+

Score

10^/10

chaos ransomware

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 5 IoCs

resource	yara_rule
behavioral1/memory/2656-34-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2656-32-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2656-29-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2656-25-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2656-23-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos

Executes dropped EXE 6 IoCs

pid	Process
2736	顾太望她.exe
2680	顾太望她.exe
2656	顾太望她.exe
2584	svchost.exe
2512	顾太望她.exe
776	顾太望她.exe

Loads dropped DLL 6 IoCs

pid	Process
1756	dd52f625ebf11a32c79f2925bb2b6bd0.exe
2736	顾太望她.exe
2736	顾太望她.exe
2656	顾太望她.exe
2584	svchost.exe
2512	顾太望她.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2656	2736	顾太望她.exe	30
PID 2512 set thread context of 776	2512	顾太望她.exe	33

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2736	顾太望她.exe
2656	顾太望她.exe
2656	顾太望她.exe
2656	顾太望她.exe
776	顾太望她.exe
776	顾太望她.exe
776	顾太望她.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1756	dd52f625ebf11a32c79f2925bb2b6bd0.exe
Token: SeDebugPrivilege	2736	顾太望她.exe
Token: SeDebugPrivilege	2656	顾太望她.exe
Token: SeDebugPrivilege	2584	svchost.exe
Token: SeDebugPrivilege	2512	顾太望她.exe
Token: SeDebugPrivilege	776	顾太望她.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2736	1756	dd52f625ebf11a32c79f2925bb2b6bd0.exe	28
PID 1756 wrote to memory of 2736	1756	dd52f625ebf11a32c79f2925bb2b6bd0.exe	28
PID 1756 wrote to memory of 2736	1756	dd52f625ebf11a32c79f2925bb2b6bd0.exe	28
PID 1756 wrote to memory of 2736	1756	dd52f625ebf11a32c79f2925bb2b6bd0.exe	28
PID 2736 wrote to memory of 2680	2736	顾太望她.exe	29
PID 2736 wrote to memory of 2680	2736	顾太望她.exe	29
PID 2736 wrote to memory of 2680	2736	顾太望她.exe	29
PID 2736 wrote to memory of 2680	2736	顾太望她.exe	29
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2736 wrote to memory of 2656	2736	顾太望她.exe	30
PID 2656 wrote to memory of 2584	2656	顾太望她.exe	31
PID 2656 wrote to memory of 2584	2656	顾太望她.exe	31
PID 2656 wrote to memory of 2584	2656	顾太望她.exe	31
PID 2656 wrote to memory of 2584	2656	顾太望她.exe	31
PID 2584 wrote to memory of 2512	2584	svchost.exe	32
PID 2584 wrote to memory of 2512	2584	svchost.exe	32
PID 2584 wrote to memory of 2512	2584	svchost.exe	32
PID 2584 wrote to memory of 2512	2584	svchost.exe	32
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33
PID 2512 wrote to memory of 776	2512	顾太望她.exe	33

C:\Users\Admin\AppData\Local\Temp\dd52f625ebf11a32c79f2925bb2b6bd0.exe
"C:\Users\Admin\AppData\Local\Temp\dd52f625ebf11a32c79f2925bb2b6bd0.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\顾太望她.exe
  "C:\Users\Admin\AppData\Local\Temp\顾太望她.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Users\Admin\AppData\Local\Temp\顾太望她.exe
    "C:\Users\Admin\AppData\Local\Temp\顾太望她.exe"
    3⤵
    - Executes dropped EXE
    PID:2680
- - C:\Users\Admin\AppData\Local\Temp\顾太望她.exe
    "C:\Users\Admin\AppData\Local\Temp\顾太望她.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2584
    - - C:\Users\Admin\AppData\Local\Temp\顾太望她.exe
        
        "C:\Users\Admin\AppData\Local\Temp\顾太望她.exe"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2512
      - C:\Users\Admin\AppData\Local\Temp\顾太望她.exe
        
        "C:\Users\Admin\AppData\Local\Temp\顾太望她.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\顾太望她.exe

Filesize
64KB

MD5
dd52f625ebf11a32c79f2925bb2b6bd0

SHA1
381c59f582f006702e1f797fb10cf0e412bb700a

SHA256
41aec0ed3bc8bd1d989c22e50b447a88740505fed4113c0ebe4e1e1792fef3d5

SHA512
49588a8bd9d59b1811332726207b8abc4c6f24918f0c8563e237467ad8450e8727a3f6f0677d8ec0917094df27acd46a59debcc40d8bea9d15956a9000a71254

Download Submit
memory/776-73-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/776-74-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/776-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1756-12-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/1756-3-0x0000000004A60000-0x0000000004AA0000-memory.dmp

Filesize
256KB

Download
memory/1756-1-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/1756-0-0x0000000000D90000-0x0000000000DA6000-memory.dmp

Filesize
88KB

Download
memory/1756-2-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/2512-72-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2512-67-0x0000000004900000-0x0000000004940000-memory.dmp

Filesize
256KB

Download
memory/2512-55-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2512-57-0x0000000000890000-0x00000000008A6000-memory.dmp

Filesize
88KB

Download
memory/2584-46-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-44-0x00000000010C0000-0x00000000010D6000-memory.dmp

Filesize
88KB

Download
memory/2584-48-0x0000000004920000-0x0000000004960000-memory.dmp

Filesize
256KB

Download
memory/2584-56-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2656-21-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-45-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2656-32-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-29-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-25-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-23-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-34-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-19-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2656-36-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-35-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-11-0x0000000000D70000-0x0000000000D86000-memory.dmp

Filesize
88KB

Download
memory/2736-14-0x0000000004980000-0x00000000049C0000-memory.dmp

Filesize
256KB

Download
memory/2736-15-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/2736-13-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download