gcleaner | 05eeecb9e998cc11ae0b3574019414b752581fc1dd5e3f9a849bc83812cc6f37

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 03:34

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General

Target
268bfb9527ce38dfe19b454f872b2d3b.exe
Size 442KB
Sample231231-d424yaaeep
SHA256 05eeecb9e998cc11ae0b3574019414b752581fc1dd5e3f9a849bc83812cc6f37
MD5 268bfb9527ce38dfe19b454f872b2d3b
SHA1 b03524970f714dbcdf3432b342f61edc367eab37
SHA512 f6c3feb26ac52eeb50fc7f6f082f9a468f8d4901066413712dd056aeeef993014796df3ac4909e0acdfa9c4d1bb21e538cad4600d4ad925c129f0938f67ce045
SSDEEP 12288:qj5N2SDXykEF4TjHWdJCXV35+PvCe9rHZUpJQ2j:5CXykyDnbZYj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

gc-prtnrs.top
gcc-prtnrs.top

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/1548-2-0x00000000021D0000-0x000000000221F000-memory.dmp	family_onlylogger
behavioral2/memory/1548-3-0x0000000000400000-0x000000000048A000-memory.dmp	family_onlylogger
behavioral2/memory/1548-5-0x00000000021D0000-0x000000000221F000-memory.dmp	family_onlylogger
behavioral2/memory/1548-4-0x0000000000400000-0x000000000048A000-memory.dmp	family_onlylogger

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	268bfb9527ce38dfe19b454f872b2d3b.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
1128	1548	WerFault.exe	14
3544	1548	WerFault.exe	14
2408	1548	WerFault.exe	14
884	1548	WerFault.exe	14
1372	1548	WerFault.exe	14
2872	1548	WerFault.exe	14
528	1548	WerFault.exe	14

Kills process with taskkill 1 IoCs

evasion

pid	Process
3752	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3752	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 2328	1548	268bfb9527ce38dfe19b454f872b2d3b.exe	112
PID 1548 wrote to memory of 2328	1548	268bfb9527ce38dfe19b454f872b2d3b.exe	112
PID 1548 wrote to memory of 2328	1548	268bfb9527ce38dfe19b454f872b2d3b.exe	112
PID 2328 wrote to memory of 3752	2328	cmd.exe	106
PID 2328 wrote to memory of 3752	2328	cmd.exe	106
PID 2328 wrote to memory of 3752	2328	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\268bfb9527ce38dfe19b454f872b2d3b.exe
"C:\Users\Admin\AppData\Local\Temp\268bfb9527ce38dfe19b454f872b2d3b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 688
  2⤵
  - Program crash
  PID:1128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 732
  2⤵
  - Program crash
  PID:3544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 928
  2⤵
  - Program crash
  PID:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 724
  2⤵
  - Program crash
  PID:884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 796
  2⤵
  - Program crash
  PID:1372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 724
  2⤵
  - Program crash
  PID:2872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 976
  2⤵
  - Program crash
  PID:528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "268bfb9527ce38dfe19b454f872b2d3b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\268bfb9527ce38dfe19b454f872b2d3b.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1548 -ip 1548
1⤵
PID:1472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1548 -ip 1548
1⤵
PID:1508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1548 -ip 1548
1⤵
PID:644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1548 -ip 1548
1⤵
PID:1392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1548 -ip 1548
1⤵
PID:2796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1548 -ip 1548
1⤵
PID:1908

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "268bfb9527ce38dfe19b454f872b2d3b.exe" /f
1⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1548 -ip 1548
1⤵
PID:1480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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/1548-2-0x00000000021D0000-0x000000000221F000-memory.dmp

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memory/1548-1-0x0000000000620000-0x0000000000720000-memory.dmp

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memory/1548-3-0x0000000000400000-0x000000000048A000-memory.dmp

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memory/1548-5-0x00000000021D0000-0x000000000221F000-memory.dmp

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memory/1548-4-0x0000000000400000-0x000000000048A000-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