gcleaner | 1641ef6e4857c7ea1b96dcbbd9ce5f62358e2868a91ce10e0360da52dee92806

Analysis

max time kernel
144s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
13/01/2023, 16:54

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General

Target
1272c18319b6fe32d0a64eb6624b2d13.exe
Size 351KB
Sample230113-vejdzaed61
SHA256 1641ef6e4857c7ea1b96dcbbd9ce5f62358e2868a91ce10e0360da52dee92806
MD5 1272c18319b6fe32d0a64eb6624b2d13
SHA1 42ea88c20570997ddb62bd82c5a864da29edafb6
SHA512 1ac92615775f794c1b310c27ae23d52f362f0b565a7419055b74542eb74df3dbb6fa2219220560b4f13e8deb0dc78ea0a0f7d0e033a73d03a841760b1aad5b20
SSDEEP 6144:JFWqLz8iIzbq53GmvHctoMmk/2/mfUpZ3xeFQRdZbNGpMskFQH2Yp:JF9/8tq53GmE2Mmn/hQCRfbURkFo2Y
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.139.105.171
85.31.46.167
107.182.129.235
171.22.30.106

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	1272c18319b6fe32d0a64eb6624b2d13.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
2900	4532	WerFault.exe	79
2432	4532	WerFault.exe	79
4716	4532	WerFault.exe	79
4652	4532	WerFault.exe	79
1080	4532	WerFault.exe	79
1260	4532	WerFault.exe	79
720	4532	WerFault.exe	79
1440	4532	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
3268	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3268	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 4500	4532	1272c18319b6fe32d0a64eb6624b2d13.exe	95
PID 4532 wrote to memory of 4500	4532	1272c18319b6fe32d0a64eb6624b2d13.exe	95
PID 4532 wrote to memory of 4500	4532	1272c18319b6fe32d0a64eb6624b2d13.exe	95
PID 4500 wrote to memory of 3268	4500	cmd.exe	99
PID 4500 wrote to memory of 3268	4500	cmd.exe	99
PID 4500 wrote to memory of 3268	4500	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\1272c18319b6fe32d0a64eb6624b2d13.exe
"C:\Users\Admin\AppData\Local\Temp\1272c18319b6fe32d0a64eb6624b2d13.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 688
  2⤵
  - Program crash
  PID:2900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 792
  2⤵
  - Program crash
  PID:2432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 800
  2⤵
  - Program crash
  PID:4716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 728
  2⤵
  - Program crash
  PID:4652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 724
  2⤵
  - Program crash
  PID:1080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 820
  2⤵
  - Program crash
  PID:1260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 968
  2⤵
  - Program crash
  PID:720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1272c18319b6fe32d0a64eb6624b2d13.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1272c18319b6fe32d0a64eb6624b2d13.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4500
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1272c18319b6fe32d0a64eb6624b2d13.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 744
  2⤵
  - Program crash
  PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4532 -ip 4532
1⤵
PID:2424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4532 -ip 4532
1⤵
PID:444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4532 -ip 4532
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4532 -ip 4532
1⤵
PID:4636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4532 -ip 4532
1⤵
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4532 -ip 4532
1⤵
PID:4252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4532 -ip 4532
1⤵
PID:4384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4532 -ip 4532
1⤵
PID:2272

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4532-132-0x0000000002C4D000-0x0000000002C74000-memory.dmp

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memory/4532-133-0x00000000048F0000-0x0000000004930000-memory.dmp

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memory/4532-134-0x0000000000400000-0x0000000002BBF000-memory.dmp

Download

memory/4532-137-0x0000000002C4D000-0x0000000002C74000-memory.dmp

Download

memory/4532-138-0x0000000000400000-0x0000000002BBF000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads