gcleaner | 60da6ce55330f4f38e98b39bf07cf75fdabd80296429f1538c48d5df499d48d2

Analysis

max time kernel
99s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
19/06/2023, 16:07

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General

Target
9a97e9f36c856d7660f1dedd940a7527.exe
Size 307KB
Sample230619-tkmg5sga7x
SHA256 60da6ce55330f4f38e98b39bf07cf75fdabd80296429f1538c48d5df499d48d2
MD5 9a97e9f36c856d7660f1dedd940a7527
SHA1 5b2836e25c740fd47781a965a5a20f684b93d675
SHA512 a351e29f39f916299daeefeee6c10fc9ef171eb2c015b21ec3be707bb71504cd5e54c17708733ece8267e0983080827cf8b409b91a21551af1e5d1a6ea734701
SSDEEP 6144:XNoiqOcq/PdQPkZEWFEnuAktCN+OKW0w6wErska8MqvmEZm:XNd5ca6kKZnHyC8OKW0w6TskvV
MD5 SHA1 SHA512 SSDEEP

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	9a97e9f36c856d7660f1dedd940a7527.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
1176	5000	WerFault.exe	83
4536	5000	WerFault.exe	83
3768	5000	WerFault.exe	83
1040	5000	WerFault.exe	83
2272	5000	WerFault.exe	83
3340	5000	WerFault.exe	83
4352	5000	WerFault.exe	83
4832	5000	WerFault.exe	83
3600	5000	WerFault.exe	83
336	5000	WerFault.exe	83

Kills process with taskkill 1 IoCs

evasion

pid	Process
4596	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4596	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 3912	5000	9a97e9f36c856d7660f1dedd940a7527.exe	110
PID 5000 wrote to memory of 3912	5000	9a97e9f36c856d7660f1dedd940a7527.exe	110
PID 5000 wrote to memory of 3912	5000	9a97e9f36c856d7660f1dedd940a7527.exe	110
PID 3912 wrote to memory of 4596	3912	cmd.exe	114
PID 3912 wrote to memory of 4596	3912	cmd.exe	114
PID 3912 wrote to memory of 4596	3912	cmd.exe	114

C:\Users\Admin\AppData\Local\Temp\9a97e9f36c856d7660f1dedd940a7527.exe
"C:\Users\Admin\AppData\Local\Temp\9a97e9f36c856d7660f1dedd940a7527.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 464
  2⤵
  - Program crash
  PID:1176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 768
  2⤵
  - Program crash
  PID:4536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 776
  2⤵
  - Program crash
  PID:3768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 776
  2⤵
  - Program crash
  PID:1040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 788
  2⤵
  - Program crash
  PID:2272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 928
  2⤵
  - Program crash
  PID:3340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 928
  2⤵
  - Program crash
  PID:4352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 1044
  2⤵
  - Program crash
  PID:4832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 1356
  2⤵
  - Program crash
  PID:3600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9a97e9f36c856d7660f1dedd940a7527.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9a97e9f36c856d7660f1dedd940a7527.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3912
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9a97e9f36c856d7660f1dedd940a7527.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 516
  2⤵
  - Program crash
  PID:336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5000 -ip 5000
1⤵
PID:392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5000 -ip 5000
1⤵
PID:1364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5000 -ip 5000
1⤵
PID:1908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5000 -ip 5000
1⤵
PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5000 -ip 5000
1⤵
PID:2224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5000 -ip 5000
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5000 -ip 5000
1⤵
PID:1080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5000 -ip 5000
1⤵
PID:984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5000 -ip 5000
1⤵
PID:3756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5000 -ip 5000
1⤵
PID:4740

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/5000-134-0x0000000000720000-0x0000000000760000-memory.dmp

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memory/5000-135-0x0000000000400000-0x00000000006A6000-memory.dmp

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memory/5000-139-0x0000000000400000-0x00000000006A6000-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