gcleaner | 11ba22db0ec0fc68dff87104cd4c4faf4bf66f01febac4f1dfd4799023644741

General

Target
8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe
Size 350KB
Sample240531-bv85saaa3y
SHA256 8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4
MD5 35ff4cef450504255c6a13305bfe1ca9
SHA1 4a01a3b33efe3c9c7e4c2854e1e73c53aa6bec88
SHA512 ade45656fd9af287267353b5ff048a659f023e2531c40dd96e8296dc3088b74962362ce0e90e48485fbe4d6a3b0da975fd18dc67f90ca3661e4a0d66e9e617a8
SSDEEP 6144:mVXVdzRKygXD6EdQfuK7U946gTyjKCyEHQbbEsYumh:cXVdSXD6ESU94hO+CZQb
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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.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
4496	512	WerFault.exe	80
804	512	WerFault.exe	80
2072	512	WerFault.exe	80
4548	512	WerFault.exe	80
2000	512	WerFault.exe	80
464	512	WerFault.exe	80
1236	512	WerFault.exe	80
4796	512	WerFault.exe	80
5088	512	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
4980	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4980	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 512 wrote to memory of 3332	512	8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe	110
PID 512 wrote to memory of 3332	512	8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe	110
PID 512 wrote to memory of 3332	512	8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe	110
PID 3332 wrote to memory of 4980	3332	cmd.exe	114
PID 3332 wrote to memory of 4980	3332	cmd.exe	114
PID 3332 wrote to memory of 4980	3332	cmd.exe	114

C:\Users\Admin\AppData\Local\Temp\8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe
"C:\Users\Admin\AppData\Local\Temp\8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 460
  2⤵
  - Program crash
  PID:4496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 764
  2⤵
  - Program crash
  PID:804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 784
  2⤵
  - Program crash
  PID:2072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 764
  2⤵
  - Program crash
  PID:4548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 804
  2⤵
  - Program crash
  PID:2000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 928
  2⤵
  - Program crash
  PID:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 1004
  2⤵
  - Program crash
  PID:1236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 1576
  2⤵
  - Program crash
  PID:4796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3332
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8c055d9a75cbb4ad28940ed89fddee3a80c933c40cd75796f716153c772325e4.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 1604
  2⤵
  - Program crash
  PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 512 -ip 512
1⤵
PID:3628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 512 -ip 512
1⤵
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 512 -ip 512
1⤵
PID:3804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 512 -ip 512
1⤵
PID:2236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 512 -ip 512
1⤵
PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 512 -ip 512
1⤵
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 512 -ip 512
1⤵
PID:4048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 512 -ip 512
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 512 -ip 512
1⤵
PID:3296

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\K7TNQP8W\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/512-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/512-2-0x0000000003BF0000-0x0000000003C2C000-memory.dmp

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memory/512-1-0x00000000020E0000-0x00000000021E0000-memory.dmp

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memory/512-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/512-15-0x0000000000400000-0x0000000001FA4000-memory.dmp

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memory/512-19-0x00000000020E0000-0x00000000021E0000-memory.dmp

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memory/512-23-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/512-34-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/512-33-0x0000000000400000-0x0000000001FA4000-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