gcleaner | 71dfa64187315a09becab456d32e70e43ae68afbff5a601a9227089241b9c460

Resubmissions

19/04/2023, 10:12

230419-l8kdpabf9z 10

19/04/2023, 09:14

230419-k7qcwahe75 10

18/04/2023, 11:36

230418-nqkylsch3z 10

Analysis

max time kernel
87s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2023, 09:14

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General

Target

1e0c04259041599f381739e5a2779118.exe
Size

282KB
MD5

1e0c04259041599f381739e5a2779118
SHA1

4aeec9e7e2d836ef69145a8451410b49d7ee8139
SHA256

71dfa64187315a09becab456d32e70e43ae68afbff5a601a9227089241b9c460
SHA512

bb1f4f064a0f7da8a7cf2aae2f7eb8687bf8f4861e168a97c4e31bced31341d552419bc96d254e11237c1227fc3836ebc802eff7af6a399a2bab62b94d3e275d
SSDEEP

3072:kcJiBxMfexCJCzAU0tPjv4UVA3oG+dHLnVTuX2kmo5ugsFWrO7CCFpPsOmmh16Pq:axaUCJCIjASGoGoOMF7+QpppObl7iM

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	1e0c04259041599f381739e5a2779118.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 10 IoCs

pid	pid_target	Process	procid_target
3200	1492	WerFault.exe	85
2148	1492	WerFault.exe	85
320	1492	WerFault.exe	85
1820	1492	WerFault.exe	85
1044	1492	WerFault.exe	85
2320	1492	WerFault.exe	85
3856	1492	WerFault.exe	85
4352	1492	WerFault.exe	85
4680	1492	WerFault.exe	85
1380	1492	WerFault.exe	85

Kills process with taskkill 1 IoCs

evasion

pid	Process
2244	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 5052	1492	1e0c04259041599f381739e5a2779118.exe	110
PID 1492 wrote to memory of 5052	1492	1e0c04259041599f381739e5a2779118.exe	110
PID 1492 wrote to memory of 5052	1492	1e0c04259041599f381739e5a2779118.exe	110
PID 5052 wrote to memory of 2244	5052	cmd.exe	113
PID 5052 wrote to memory of 2244	5052	cmd.exe	113
PID 5052 wrote to memory of 2244	5052	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\1e0c04259041599f381739e5a2779118.exe
C:\Users\Admin\AppData\Local\Temp\1e0c04259041599f381739e5a2779118.exe /chk,hell
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 456
  2⤵
  - Program crash
  PID:3200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 768
  2⤵
  - Program crash
  PID:2148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 812
  2⤵
  - Program crash
  PID:320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 832
  2⤵
  - Program crash
  PID:1820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 860
  2⤵
  - Program crash
  PID:1044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 928
  2⤵
  - Program crash
  PID:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 976
  2⤵
  - Program crash
  PID:3856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1060
  2⤵
  - Program crash
  PID:4352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1364
  2⤵
  - Program crash
  PID:4680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1e0c04259041599f381739e5a2779118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1e0c04259041599f381739e5a2779118.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1e0c04259041599f381739e5a2779118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1408
  2⤵
  - Program crash
  PID:1380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1492 -ip 1492
1⤵
PID:804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1492 -ip 1492
1⤵
PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1492 -ip 1492
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1492 -ip 1492
1⤵
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1492 -ip 1492
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1492 -ip 1492
1⤵
PID:4804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1492 -ip 1492
1⤵
PID:2128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1492 -ip 1492
1⤵
PID:3732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1492 -ip 1492
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1492 -ip 1492
1⤵
PID:756

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

Replay Monitor

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Downloads

memory/1492-134-0x0000000000750000-0x0000000000791000-memory.dmp

Filesize
260KB

Download
memory/1492-135-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1492-137-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download