gcleaner | 1fad9b66cbf4f1143ae37f500dfe5126d9fd7faedf37d679e284bb28bd7d6fc1

General

Target
84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe
Size 356KB
Sample240607-bt1f9afb71
SHA256 84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae
MD5 429eb5f331d0c51036a4c50c5a1c1494
SHA1 07199e9f82c4af33bb0477418d8619aebf4fad20
SHA512 48576c74399ecbf3dd9ca8b904b7fb1e792922732c6b130f5a8259999b60fbb0db32457dbdf1e2cf6e4ef52160a58a8b1ac6650532f69aac1dae281fef574285
SSDEEP 6144:Qp/9XSBjcOjYXHquhpoY8vUZFk6xP50mT:QZ9XSyOcH5R8vUZpPz
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
456	4296	WerFault.exe	82
3412	4296	WerFault.exe	82
3612	4296	WerFault.exe	82
2332	4296	WerFault.exe	82
2604	4296	WerFault.exe	82
3416	4296	WerFault.exe	82
2688	4296	WerFault.exe	82
340	4296	WerFault.exe	82
3484	4296	WerFault.exe	82
4332	4296	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
4192	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4192	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 1716	4296	84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe	115
PID 4296 wrote to memory of 1716	4296	84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe	115
PID 4296 wrote to memory of 1716	4296	84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe	115
PID 1716 wrote to memory of 4192	1716	cmd.exe	119
PID 1716 wrote to memory of 4192	1716	cmd.exe	119
PID 1716 wrote to memory of 4192	1716	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe
"C:\Users\Admin\AppData\Local\Temp\84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 456
  2⤵
  - Program crash
  PID:456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 768
  2⤵
  - Program crash
  PID:3412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 768
  2⤵
  - Program crash
  PID:3612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 796
  2⤵
  - Program crash
  PID:2332
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 820
  2⤵
  - Program crash
  PID:2604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 928
  2⤵
  - Program crash
  PID:3416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 1004
  2⤵
  - Program crash
  PID:2688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 1048
  2⤵
  - Program crash
  PID:340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 1584
  2⤵
  - Program crash
  PID:3484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1716
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "84e759c6d5974a60cbb57aa372139eae8be0b7e34178a36c22ad6504a7527bae.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 1636
  2⤵
  - Program crash
  PID:4332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4296 -ip 4296
1⤵
PID:1376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4296 -ip 4296
1⤵
PID:5100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4296 -ip 4296
1⤵
PID:3212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4296 -ip 4296
1⤵
PID:3880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4296 -ip 4296
1⤵
PID:1540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4296 -ip 4296
1⤵
PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4296 -ip 4296
1⤵
PID:4072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4296 -ip 4296
1⤵
PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4296 -ip 4296
1⤵
PID:2192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4296 -ip 4296
1⤵
PID:1376

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\DKWDYRX8\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/4296-1-0x0000000000730000-0x0000000000830000-memory.dmp

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memory/4296-2-0x00000000022B0000-0x00000000022EC000-memory.dmp

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memory/4296-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4296-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/4296-15-0x0000000000400000-0x0000000000692000-memory.dmp

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memory/4296-22-0x00000000022B0000-0x00000000022EC000-memory.dmp

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memory/4296-21-0x0000000000730000-0x0000000000830000-memory.dmp

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memory/4296-25-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4296-35-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4296-34-0x0000000000400000-0x0000000000692000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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