gcleaner | 155b61f0b3fec06240999307cf0ec10cbb663db5820e31ecf2aeda7875afbcd7

Analysis

max time kernel
139s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 04:17

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
621efe096e8e178b785542b8dbabe0f5.exe
Size 344KB
Sample231222-ewkelachfn
SHA256 155b61f0b3fec06240999307cf0ec10cbb663db5820e31ecf2aeda7875afbcd7
MD5 621efe096e8e178b785542b8dbabe0f5
SHA1 78d50960b0353a7c2cf21a09fa58f04591748bfd
SHA512 a6bb042229fd0eb0923f6c122ad9f590263893cdd907c244f799c62d27849d76e0940055e13b845f8d1c1cfe0f52448b201c7dbfba6f53d3e7d70cbe2e0b8e64
SSDEEP 6144:pe1wKycepS20Q7Qb6sc80JjljpO6eXBGIdMUgNr5Jl/QAHRcrsRH+F:WwKXe820Q5sc844pRD7gN5/x1o
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

194.145.227.161

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/2980-2-0x00000000048B0000-0x00000000048F8000-memory.dmp	family_onlylogger
behavioral2/memory/2980-3-0x0000000000400000-0x0000000002B61000-memory.dmp	family_onlylogger
behavioral2/memory/2980-4-0x0000000000400000-0x0000000002B61000-memory.dmp	family_onlylogger
behavioral2/memory/2980-6-0x00000000048B0000-0x00000000048F8000-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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	621efe096e8e178b785542b8dbabe0f5.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
5008	2980	WerFault.exe	43
4644	2980	WerFault.exe	43
2696	2980	WerFault.exe	43
3700	2980	WerFault.exe	43
3772	2980	WerFault.exe	43
3584	2980	WerFault.exe	43
1820	2980	WerFault.exe	43

Kills process with taskkill 1 IoCs

evasion

pid	Process
3164	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3164	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2492	2980	621efe096e8e178b785542b8dbabe0f5.exe	104
PID 2980 wrote to memory of 2492	2980	621efe096e8e178b785542b8dbabe0f5.exe	104
PID 2980 wrote to memory of 2492	2980	621efe096e8e178b785542b8dbabe0f5.exe	104
PID 2492 wrote to memory of 3164	2492	cmd.exe	108
PID 2492 wrote to memory of 3164	2492	cmd.exe	108
PID 2492 wrote to memory of 3164	2492	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\621efe096e8e178b785542b8dbabe0f5.exe
"C:\Users\Admin\AppData\Local\Temp\621efe096e8e178b785542b8dbabe0f5.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 716
  2⤵
  - Program crash
  PID:5008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 784
  2⤵
  - Program crash
  PID:4644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 788
  2⤵
  - Program crash
  PID:2696
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 936
  2⤵
  - Program crash
  PID:3700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 936
  2⤵
  - Program crash
  PID:3772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 968
  2⤵
  - Program crash
  PID:3584
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "621efe096e8e178b785542b8dbabe0f5.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\621efe096e8e178b785542b8dbabe0f5.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "621efe096e8e178b785542b8dbabe0f5.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 1120
  2⤵
  - Program crash
  PID:1820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2980 -ip 2980
1⤵
PID:908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2980 -ip 2980
1⤵
PID:1048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2980 -ip 2980
1⤵
PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2980 -ip 2980
1⤵
PID:3704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2980 -ip 2980
1⤵
PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2980 -ip 2980
1⤵
PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2980 -ip 2980
1⤵
PID:3760

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2980-1-0x0000000002E10000-0x0000000002F10000-memory.dmp

Download

memory/2980-2-0x00000000048B0000-0x00000000048F8000-memory.dmp

Download

memory/2980-3-0x0000000000400000-0x0000000002B61000-memory.dmp

Download

memory/2980-4-0x0000000000400000-0x0000000002B61000-memory.dmp

Download

memory/2980-6-0x00000000048B0000-0x00000000048F8000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads