gcleaner | 2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf

General

Target

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
Size

444KB
MD5

0ca5761b2cd8f4a1d3a6172bcb40c2d6
SHA1

1c81699a6fff3c6b5ee0e9457f73a9d7640d6292
SHA256

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf
SHA512

3c4897953666c46f10dc9ff3dbcfed6c1e7ba647b763d72946513622fcdfa6da6d35c0b099322c23efe98837695759fd2d367d77f1883b0f3ca3ed39d7017168
SSDEEP

12288:blvgaJnWq36kMw03CPctkuGhAjeZMYJgiIUaf:bnJWq36kMTffjUMYmnf

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/2016-2-0x0000000000D20000-0x0000000000D69000-memory.dmp	family_onlylogger
behavioral2/memory/2016-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/2016-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/2016-5-0x0000000000D20000-0x0000000000D69000-memory.dmp	family_onlylogger
behavioral2/memory/2016-4-0x0000000000400000-0x000000000089E000-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:

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.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	target process
4008	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
4684	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
2196	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
220	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
4872	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
1256	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
1404	2016	WerFault.exe	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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:

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2948 taskkill.exe

pid	process
2948	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe

description	pid	process	target process
PID 2016 wrote to memory of 2816	2016	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe
PID 2016 wrote to memory of 2816	2016	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe
PID 2016 wrote to memory of 2816	2016	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
"C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 744
  2⤵
  - Program crash
  PID:4008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 784
  2⤵
  - Program crash
  PID:4684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 792
  2⤵
  - Program crash
  PID:2196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 936
  2⤵
  - Program crash
  PID:220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 936
  2⤵
  - Program crash
  PID:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 776
  2⤵
  - Program crash
  PID:1256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f
    3⤵
    - Kills process with taskkill
    PID:2948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 980
  2⤵
  - Program crash
  PID:1404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2016 -ip 2016
1⤵
PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2016 -ip 2016
1⤵
PID:1660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2016 -ip 2016
1⤵
PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 2016 -ip 2016
1⤵
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2016 -ip 2016
1⤵
PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2016 -ip 2016
1⤵
PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2016 -ip 2016
1⤵
PID:5068

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/2016-2-0x0000000000D20000-0x0000000000D69000-memory.dmp

Filesize
292KB

Download
memory/2016-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

Filesize
1024KB

Download
memory/2016-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-5-0x0000000000D20000-0x0000000000D69000-memory.dmp

Filesize
292KB

Download
memory/2016-4-0x0000000000400000-0x000000000089E000-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