gcleaner | c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323

General

Target

c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe
Size

444KB
MD5

615052f6e47e830139e84b6a637b4cc9
SHA1

a97cc8ea643bd704232556bf617aade1deab8269
SHA256

c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323
SHA512

44a9334e917cb59eb22f7969c49944c9554c90da8e79146745d237af9a38a693d00c0dafa6a5bdb4723b2977f50757949f1eaef1f8067c65ae97e4db65734fb3
SSDEEP

12288:efdgTBtlvcWmxZ1S9nTQD6erx3fuwBdCnkNTDevWhj:eFg9tcXS9cxPuJnkZDB

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

gcl-gb.biz

45.9.20.13

Signatures

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

OnlyLogger payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/396-2-0x00000000009E0000-0x0000000000A29000-memory.dmp	family_onlylogger
behavioral2/memory/396-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/396-5-0x00000000009E0000-0x0000000000A29000-memory.dmp	family_onlylogger
behavioral2/memory/396-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/396-4-0x0000000000400000-0x000000000089E000-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

Processes:

c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
2044	396	WerFault.exe	82
1532	396	WerFault.exe	82
4560	396	WerFault.exe	82
2800	396	WerFault.exe	82
2292	396	WerFault.exe	82
536	396	WerFault.exe	82
4692	396	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.execmd.exetaskkill.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

Processes:

taskkill.exe

pid	Process
3712	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description	pid	Process
Token: SeDebugPrivilege	3712	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.execmd.exe

description	pid	Process	procid_target
PID 396 wrote to memory of 4484	396	c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe	96
PID 396 wrote to memory of 4484	396	c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe	96
PID 396 wrote to memory of 4484	396	c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe	96
PID 4484 wrote to memory of 3712	4484	cmd.exe	100
PID 4484 wrote to memory of 3712	4484	cmd.exe	100
PID 4484 wrote to memory of 3712	4484	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe
"C:\Users\Admin\AppData\Local\Temp\c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 756
  2⤵
  - Program crash
  PID:2044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 756
  2⤵
  - Program crash
  PID:1532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 792
  2⤵
  - Program crash
  PID:4560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 788
  2⤵
  - Program crash
  PID:2800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 948
  2⤵
  - Program crash
  PID:2292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 780
  2⤵
  - Program crash
  PID:536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4484
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "c68a2d519387d3687404d3788bfb6bfb797883ab4c05e05e38eeea952d07f323.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 976
  2⤵
  - Program crash
  PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 396 -ip 396
1⤵
PID:2968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 396 -ip 396
1⤵
PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 396 -ip 396
1⤵
PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 396 -ip 396
1⤵
PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 396 -ip 396
1⤵
PID:1784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 396 -ip 396
1⤵
PID:968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 396 -ip 396
1⤵
PID:2452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/396-1-0x0000000000C20000-0x0000000000D20000-memory.dmp

Filesize
1024KB

Download
memory/396-2-0x00000000009E0000-0x0000000000A29000-memory.dmp

Filesize
292KB

Download
memory/396-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/396-5-0x00000000009E0000-0x0000000000A29000-memory.dmp

Filesize
292KB

Download
memory/396-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/396-4-0x0000000000400000-0x000000000089E000-memory.dmp

Filesize
4.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads