gcleaner | a29c45c2a665f9a7508316940613b82a389ab7891812adf33d91324b8a0a1b39

General

Target

3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe
Size

259KB
MD5

5ef4cf46165c932ee117830e7cd38ccf
SHA1

d45fc4a83fcd2a1fec421d55635d51bf02646d37
SHA256

3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7
SHA512

33a5d66a67e4e81b105a7ce4f4e4c82fb5d42cd8d3de4b0ac42f2cf2825b65d3699d7987ecbd323de69a7ac72227e9f934c73478c48ab9add9fa6bf7edd536be
SSDEEP

6144:crMgT9iXeD45U2VHSmAuLfNqeo7FGN1MFlsWY:QT9iXg45UAHJjNqeWFLc

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.115

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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.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
2316	4736	WerFault.exe	84
2928	4736	WerFault.exe	84
4356	4736	WerFault.exe	84
412	4736	WerFault.exe	84
3668	4736	WerFault.exe	84
2356	4736	WerFault.exe	84
3328	4736	WerFault.exe	84
628	4736	WerFault.exe	84

Kills process with taskkill 1 IoCs

evasion

pid	Process
1224	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 4992	4736	3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe	103
PID 4736 wrote to memory of 4992	4736	3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe	103
PID 4736 wrote to memory of 4992	4736	3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe	103
PID 4992 wrote to memory of 1224	4992	cmd.exe	107
PID 4992 wrote to memory of 1224	4992	cmd.exe	107
PID 4992 wrote to memory of 1224	4992	cmd.exe	107

C:\Users\Admin\AppData\Local\Temp\3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe
"C:\Users\Admin\AppData\Local\Temp\3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 744
  2⤵
  - Program crash
  PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 752
  2⤵
  - Program crash
  PID:2928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 752
  2⤵
  - Program crash
  PID:4356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 836
  2⤵
  - Program crash
  PID:412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 904
  2⤵
  - Program crash
  PID:3668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 984
  2⤵
  - Program crash
  PID:2356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 1364
  2⤵
  - Program crash
  PID:3328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 1420
  2⤵
  - Program crash
  PID:628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4736 -ip 4736
1⤵
PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4736 -ip 4736
1⤵
PID:688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4736 -ip 4736
1⤵
PID:3692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4736 -ip 4736
1⤵
PID:4656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4736 -ip 4736
1⤵
PID:3144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4736 -ip 4736
1⤵
PID:4864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4736 -ip 4736
1⤵
PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4736 -ip 4736
1⤵
PID:2800

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

Replay Monitor

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Downloads

memory/4736-1-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/4736-2-0x00000000006C0000-0x00000000006ED000-memory.dmp

Filesize
180KB

Download
memory/4736-3-0x0000000000400000-0x0000000000544000-memory.dmp

Filesize
1.3MB

Download
memory/4736-5-0x0000000000400000-0x0000000000544000-memory.dmp

Filesize
1.3MB

Download
memory/4736-6-0x00000000006C0000-0x00000000006ED000-memory.dmp

Filesize
180KB

Download

Analysis

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