gcleaner | 1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5

General

Target
1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe
Size 221KB
Sample240709-a7wjsaxeqp
SHA256 1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5
MD5 019defe59b733d4d86a895702873ff07
SHA1 84ffebd78ea6a829da971f2e6fc4c8fcdf757bb7
SHA512 36f0b0cb91e6aee9916f1f85d71a6f417ac5454cfb68a79f59291ea5e43d51b006bb3b41252fe63d619a0306b2ea2775dee9487ca419caad424e4d3d7fc085d4
SSDEEP 3072:z6L6xx02vclrn6XY/+CwjemnXzvznzeD8B5rCvZMt/2PE9w:GL6xu2ez6XY/+NxbelasP
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
185.172.128.69

Attributes

url_path
/advdlc.php

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
4504	900	WerFault.exe	79
2372	900	WerFault.exe	79
1572	900	WerFault.exe	79
1504	900	WerFault.exe	79
2072	900	WerFault.exe	79
244	900	WerFault.exe	79
5036	900	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
4860	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4860	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 3204	900	1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe	97
PID 900 wrote to memory of 3204	900	1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe	97
PID 900 wrote to memory of 3204	900	1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe	97
PID 3204 wrote to memory of 4860	3204	cmd.exe	99
PID 3204 wrote to memory of 4860	3204	cmd.exe	99
PID 3204 wrote to memory of 4860	3204	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe
"C:\Users\Admin\AppData\Local\Temp\1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 768
  2⤵
  - Program crash
  PID:4504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 812
  2⤵
  - Program crash
  PID:2372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 804
  2⤵
  - Program crash
  PID:1572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 848
  2⤵
  - Program crash
  PID:1504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 952
  2⤵
  - Program crash
  PID:2072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 956
  2⤵
  - Program crash
  PID:244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 1484
  2⤵
  - Program crash
  PID:5036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3204
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1da5c6b2f789ad6d84e4b9bf57c3094b416e0449f5ccb6f5709a90e3ba3f0eb5.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 900 -ip 900
1⤵
PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 900 -ip 900
1⤵
PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 900 -ip 900
1⤵
PID:2452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 900 -ip 900
1⤵
PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 900 -ip 900
1⤵
PID:348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 900 -ip 900
1⤵
PID:220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 900 -ip 900
1⤵
PID:3136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\V3IAWE42\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/900-2-0x0000000002330000-0x000000000235D000-memory.dmp

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memory/900-1-0x0000000000800000-0x0000000000900000-memory.dmp

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memory/900-3-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/900-8-0x0000000000400000-0x00000000004D2000-memory.dmp

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memory/900-14-0x0000000000800000-0x0000000000900000-memory.dmp

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memory/900-15-0x0000000002330000-0x000000000235D000-memory.dmp

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memory/900-16-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/900-23-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/900-22-0x0000000000400000-0x00000000004D2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads