gcleaner | 072365a14be0a827cbb8c1a4b5a916f8c0c68b63e665a3886646ff2f8adc6196

General

Target
22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe
Size 352KB
Sample240607-bhpwdaga29
SHA256 22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b
MD5 234d6b88e2233488b2eb88415c3e739c
SHA1 fbbb9ab5a95b4947da0a5c03896d11e570c0b297
SHA512 ab4f7d3c930a7af65855f8233d76a205b5e5a564c12425605cc33f0a38607327f1a617126b3feb408c8ae5ab2f5e95e199e6edf2ae80f0b5b4dda8897bb83414
SSDEEP 6144:imasVRdSnbzhOnEmKugskS7gqHVkG8rj7G3trkHiT:imasVREnbljMgtHO6z7G3D
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
5.42.64.56
185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
536	1012	WerFault.exe	82
740	1012	WerFault.exe	82
1712	1012	WerFault.exe	82
5024	1012	WerFault.exe	82
3524	1012	WerFault.exe	82
4388	1012	WerFault.exe	82
2180	1012	WerFault.exe	82
1312	1012	WerFault.exe	82
1872	1012	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
672	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	672	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 3188	1012	22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe	112
PID 1012 wrote to memory of 3188	1012	22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe	112
PID 1012 wrote to memory of 3188	1012	22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe	112
PID 3188 wrote to memory of 672	3188	cmd.exe	116
PID 3188 wrote to memory of 672	3188	cmd.exe	116
PID 3188 wrote to memory of 672	3188	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe
"C:\Users\Admin\AppData\Local\Temp\22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 452
  2⤵
  - Program crash
  PID:536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 768
  2⤵
  - Program crash
  PID:740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 776
  2⤵
  - Program crash
  PID:1712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 800
  2⤵
  - Program crash
  PID:5024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 840
  2⤵
  - Program crash
  PID:3524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 932
  2⤵
  - Program crash
  PID:4388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 1004
  2⤵
  - Program crash
  PID:2180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 1580
  2⤵
  - Program crash
  PID:1312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3188
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "22468ceb0f9991c618e4d682d304b195a65e60a6f507629561106ed815b81f3b.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 496
  2⤵
  - Program crash
  PID:1872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1012 -ip 1012
1⤵
PID:4284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1012 -ip 1012
1⤵
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1012 -ip 1012
1⤵
PID:4524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1012 -ip 1012
1⤵
PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1012 -ip 1012
1⤵
PID:1112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1012 -ip 1012
1⤵
PID:348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1012 -ip 1012
1⤵
PID:1628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1012 -ip 1012
1⤵
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1012 -ip 1012
1⤵
PID:3268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CMPDKH9Q\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/1012-1-0x00000000008E0000-0x00000000009E0000-memory.dmp

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memory/1012-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/1012-2-0x0000000000840000-0x000000000087C000-memory.dmp

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memory/1012-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/1012-15-0x0000000000400000-0x0000000000691000-memory.dmp

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memory/1012-24-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/1012-23-0x00000000008E0000-0x00000000009E0000-memory.dmp

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memory/1012-33-0x0000000000400000-0x0000000000691000-memory.dmp

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memory/1012-34-0x0000000000400000-0x0000000000440000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads