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
behavioral1/memory/2648-2-0x0000000000220000-0x0000000000269000-memory.dmp	family_onlylogger
behavioral1/memory/2648-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2648-4-0x0000000000400000-0x000000000089E000-memory.dmp	family_onlylogger
behavioral1/memory/2648-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2648-5-0x0000000000220000-0x0000000000269000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2748 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2748	cmd.exe

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:

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.execmd.exetaskkill.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2692 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2692 taskkill.exe

pid	process
2692	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2692	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.execmd.exe

description	pid	process	target process
PID 2648 wrote to memory of 2748	2648	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe
PID 2648 wrote to memory of 2748	2648	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe
PID 2648 wrote to memory of 2748	2648	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe
PID 2648 wrote to memory of 2748	2648	2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe	cmd.exe
PID 2748 wrote to memory of 2692	2748	cmd.exe	taskkill.exe
PID 2748 wrote to memory of 2692	2748	cmd.exe	taskkill.exe
PID 2748 wrote to memory of 2692	2748	cmd.exe	taskkill.exe
PID 2748 wrote to memory of 2692	2748	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
"C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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/2648-1-0x0000000000990000-0x0000000000A90000-memory.dmp

Filesize
1024KB

Download
memory/2648-2-0x0000000000220000-0x0000000000269000-memory.dmp

Filesize
292KB

Download
memory/2648-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2648-4-0x0000000000400000-0x000000000089E000-memory.dmp

Filesize
4.6MB

Download
memory/2648-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2648-5-0x0000000000220000-0x0000000000269000-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads