141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9

General

Target

141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe
Size

504KB
MD5

442e1935e53619952a33090b4ba5aacd
SHA1

f98168d3740aa39572457fdb18646167bc713030
SHA256

141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9
SHA512

674f40dc2adb1a25d498c88a809fffcbd448119140d910a15fa535b97d8847a99942598b5f4a8622e4041abb4191e71fe7fba70f1966839a114b96d9722bfe36
SSDEEP

12288:H9cXDP90RVcaVWjUhQuczopZCPgcLMGOe:HGXDP9WVHxpZggIMU

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe\""	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Executes dropped EXE 2 IoCs

pid	Process
1464	helper.exe
1432	helper.exe

Loads dropped DLL 1 IoCs

pid	Process
1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe\""	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1464 set thread context of 1432	1464	helper.exe	31

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe
Token: SeDebugPrivilege	1464	helper.exe
Token: SeDebugPrivilege	1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1112 wrote to memory of 1828	1112	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	28
PID 1828 wrote to memory of 1464	1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	30
PID 1828 wrote to memory of 1464	1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	30
PID 1828 wrote to memory of 1464	1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	30
PID 1828 wrote to memory of 1464	1828	141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe	30
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31
PID 1464 wrote to memory of 1432	1464	helper.exe	31

C:\Users\Admin\AppData\Local\Temp\141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe
"C:\Users\Admin\AppData\Local\Temp\141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe
  C:\Users\Admin\AppData\Local\Temp\141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\ProgramData\864412\helper.exe
    "C:\ProgramData\864412\helper.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1464
  - - C:\ProgramData\864412\helper.exe
      C:\ProgramData\864412\helper.exe
      4⤵
      Executes dropped EXE
      PID:1432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\864412\helper.exe

Filesize
504KB

MD5
442e1935e53619952a33090b4ba5aacd

SHA1
f98168d3740aa39572457fdb18646167bc713030

SHA256
141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9

SHA512
674f40dc2adb1a25d498c88a809fffcbd448119140d910a15fa535b97d8847a99942598b5f4a8622e4041abb4191e71fe7fba70f1966839a114b96d9722bfe36

Download Submit
C:\ProgramData\864412\helper.exe

Filesize
504KB

MD5
442e1935e53619952a33090b4ba5aacd

SHA1
f98168d3740aa39572457fdb18646167bc713030

SHA256
141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9

SHA512
674f40dc2adb1a25d498c88a809fffcbd448119140d910a15fa535b97d8847a99942598b5f4a8622e4041abb4191e71fe7fba70f1966839a114b96d9722bfe36

Download Submit
C:\ProgramData\864412\helper.exe

Filesize
504KB

MD5
442e1935e53619952a33090b4ba5aacd

SHA1
f98168d3740aa39572457fdb18646167bc713030

SHA256
141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9

SHA512
674f40dc2adb1a25d498c88a809fffcbd448119140d910a15fa535b97d8847a99942598b5f4a8622e4041abb4191e71fe7fba70f1966839a114b96d9722bfe36

Download Submit
\ProgramData\864412\helper.exe

Filesize
504KB

MD5
442e1935e53619952a33090b4ba5aacd

SHA1
f98168d3740aa39572457fdb18646167bc713030

SHA256
141ed19ec18802d3fc24038503e8c361a2653ae79935e3d7cda14172dbc43be9

SHA512
674f40dc2adb1a25d498c88a809fffcbd448119140d910a15fa535b97d8847a99942598b5f4a8622e4041abb4191e71fe7fba70f1966839a114b96d9722bfe36

Download Submit
memory/1112-63-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/1112-54-0x0000000076771000-0x0000000076773000-memory.dmp

Filesize
8KB

Download
memory/1112-55-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/1464-73-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/1828-59-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1828-61-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1828-64-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/1828-56-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1828-74-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads