chaos | 68ec37ccb2e6682f6f444b13b9d6f0098ef45774dcf856328d7c9af440891679

Resubmissions

31-03-2024 14:56

240331-sa6ycsdg9y 10

27-03-2024 12:31

240327-pp4vrsfc3z 10

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 12:31

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General

Target

e1ac6283bd50e46c49ea0cfae49e4a8f.exe
Size

40KB
MD5

e1ac6283bd50e46c49ea0cfae49e4a8f
SHA1

e0f4c6caf5e8b119a1b302591a39511872eb11cd
SHA256

68ec37ccb2e6682f6f444b13b9d6f0098ef45774dcf856328d7c9af440891679
SHA512

ca612f7b82e178feddaa14cdde0a1e25a65e5d1c0868ff39bb4db3447cba909ffa5bb813b8bf5ab038d33d45a7ea95de200cfd59d5cae890507aba8cc7556223
SSDEEP

768:UzctJwrPdpe9rrG5XdO1AF97rds0/poHWFC6JORwxIpizMAO2:actJgPW9rrGNdO1AjvWqS246WNizg2

Score

10^/10

chaos ransomware

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 7 IoCs

resource	yara_rule
behavioral1/memory/2612-9-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2612-8-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2612-12-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2612-16-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2612-14-0x0000000000400000-0x000000000040C000-memory.dmp	family_chaos
behavioral1/memory/2660-29-0x0000000004750000-0x0000000004790000-memory.dmp	family_chaos
behavioral1/memory/2660-31-0x0000000004750000-0x0000000004790000-memory.dmp	family_chaos

Executes dropped EXE 2 IoCs

pid	Process
2660	svchost.exe
2768	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 2660 set thread context of 2768	2660	svchost.exe	35

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
2768	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
Token: SeDebugPrivilege	2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe
Token: SeDebugPrivilege	2768	svchost.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2540	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	28
PID 1704 wrote to memory of 2540	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	28
PID 1704 wrote to memory of 2540	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	28
PID 1704 wrote to memory of 2540	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	28
PID 1704 wrote to memory of 2252	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	29
PID 1704 wrote to memory of 2252	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	29
PID 1704 wrote to memory of 2252	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	29
PID 1704 wrote to memory of 2252	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	29
PID 1704 wrote to memory of 2672	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	30
PID 1704 wrote to memory of 2672	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	30
PID 1704 wrote to memory of 2672	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	30
PID 1704 wrote to memory of 2672	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	30
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 1704 wrote to memory of 2612	1704	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	31
PID 2612 wrote to memory of 2660	2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	32
PID 2612 wrote to memory of 2660	2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	32
PID 2612 wrote to memory of 2660	2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	32
PID 2612 wrote to memory of 2660	2612	e1ac6283bd50e46c49ea0cfae49e4a8f.exe	32
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35
PID 2660 wrote to memory of 2768	2660	svchost.exe	35

C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe
"C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe
  "C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe"
  2⤵
  PID:2540
- C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe
  "C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe"
  2⤵
  PID:2252
- C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe
  "C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe"
  2⤵
  PID:2672
- C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe
  "C:\Users\Admin\AppData\Local\Temp\e1ac6283bd50e46c49ea0cfae49e4a8f.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2660
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2768

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

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Downloads

\Users\Admin\AppData\Roaming\svchost.exe

Filesize
40KB

MD5
e1ac6283bd50e46c49ea0cfae49e4a8f

SHA1
e0f4c6caf5e8b119a1b302591a39511872eb11cd

SHA256
68ec37ccb2e6682f6f444b13b9d6f0098ef45774dcf856328d7c9af440891679

SHA512
ca612f7b82e178feddaa14cdde0a1e25a65e5d1c0868ff39bb4db3447cba909ffa5bb813b8bf5ab038d33d45a7ea95de200cfd59d5cae890507aba8cc7556223

Download Submit
memory/1704-0-0x0000000000320000-0x0000000000330000-memory.dmp

Filesize
64KB

Download
memory/1704-1-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/1704-2-0x0000000004A60000-0x0000000004AA0000-memory.dmp

Filesize
256KB

Download
memory/1704-3-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/1704-4-0x0000000004A60000-0x0000000004AA0000-memory.dmp

Filesize
256KB

Download
memory/1704-5-0x00000000003B0000-0x00000000003BE000-memory.dmp

Filesize
56KB

Download
memory/1704-17-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-16-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-27-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-14-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-6-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-18-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-7-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2612-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-26-0x0000000000E10000-0x0000000000E20000-memory.dmp

Filesize
64KB

Download
memory/2660-28-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2660-29-0x0000000004750000-0x0000000004790000-memory.dmp

Filesize
256KB

Download
memory/2660-30-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2660-31-0x0000000004750000-0x0000000004790000-memory.dmp

Filesize
256KB

Download
memory/2660-45-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-44-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download