gcleaner | 3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94

General

Target
3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe
Size 220KB
Sample240709-blff4s1cqf
SHA256 3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94
MD5 0f9555c88d699987e6250d589e141aec
SHA1 7c202794f5ea6d743d42f2bb51cfb8d81be8fb13
SHA512 04a9f31ecc51430f7f2a54fc398b177c2eb717c296840d772ebcbe203cd5c4e33f695eb4e135463a3c0c9035dd637958519cf2b23d505c9ab9d6869c1017cabf
SSDEEP 3072:zrL6xIhDtd0Ed0Is3YST6MzEwxZc+bsrIt25TmUtqggm2PE9w:HL66dNd033iI/xpCq2RgP
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

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-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation	3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
2844	1612	WerFault.exe	81
3692	1612	WerFault.exe	81
2444	1612	WerFault.exe	81
4016	1612	WerFault.exe	81
4568	1612	WerFault.exe	81
2144	1612	WerFault.exe	81
540	1612	WerFault.exe	81
2788	1612	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
3916	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 3992	1612	3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe	104
PID 1612 wrote to memory of 3992	1612	3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe	104
PID 1612 wrote to memory of 3992	1612	3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe	104
PID 3992 wrote to memory of 3916	3992	cmd.exe	106
PID 3992 wrote to memory of 3916	3992	cmd.exe	106
PID 3992 wrote to memory of 3916	3992	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe
"C:\Users\Admin\AppData\Local\Temp\3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 740
  2⤵
  - Program crash
  PID:2844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 764
  2⤵
  - Program crash
  PID:3692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 800
  2⤵
  - Program crash
  PID:2444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 792
  2⤵
  - Program crash
  PID:4016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 904
  2⤵
  - Program crash
  PID:4568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 908
  2⤵
  - Program crash
  PID:2144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 1020
  2⤵
  - Program crash
  PID:540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 1336
  2⤵
  - Program crash
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "3a05a3bf94a934a3b9521c4e8db70ba4a6564129fcaa79a02e79bc20890b6c94.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1612 -ip 1612
1⤵
PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1612 -ip 1612
1⤵
PID:2164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1612 -ip 1612
1⤵
PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1612 -ip 1612
1⤵
PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1612 -ip 1612
1⤵
PID:2600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1612 -ip 1612
1⤵
PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1612 -ip 1612
1⤵
PID:1124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1612 -ip 1612
1⤵
PID:3504

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\XSK6UPHB\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/1612-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

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memory/1612-3-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1612-2-0x00000000020E0000-0x000000000210D000-memory.dmp

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memory/1612-7-0x0000000000400000-0x00000000004D2000-memory.dmp

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memory/1612-14-0x00000000004E0000-0x00000000005E0000-memory.dmp

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memory/1612-15-0x00000000020E0000-0x000000000210D000-memory.dmp

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memory/1612-17-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1612-23-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1612-22-0x0000000000400000-0x00000000004D2000-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