gcleaner | 60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2

General

Target

60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe
Size

434KB
MD5

658f5cc491e8dfa795631aaec4d413c6
SHA1

369afb0cd235845a682abaaa7c0dd28f6dafaf3b
SHA256

60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2
SHA512

eae0511ade4786db99dda64226b40583c9ad0a46018f64f8148e155a3e0974135a92595efd0884e2727a90f146398e1c6e085fad4935de2dbde22c88c4fbc876
SSDEEP

12288:zzI8cv58+wGnt8MWn03argrhMqoI8brrCP1buwrC:zkHhWGntq0XD8vrCNiGC

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/2556-2-0x0000000000220000-0x0000000000269000-memory.dmp	family_onlylogger
behavioral1/memory/2556-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2556-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2556-5-0x0000000000220000-0x0000000000269000-memory.dmp	family_onlylogger
behavioral1/memory/2556-4-0x0000000000400000-0x000000000089C000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2368 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2368	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:

taskkill.exe60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2408 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2408 taskkill.exe

pid	process
2408	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2408	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.execmd.exe

description	pid	process	target process
PID 2556 wrote to memory of 2368	2556	60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe	cmd.exe
PID 2556 wrote to memory of 2368	2556	60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe	cmd.exe
PID 2556 wrote to memory of 2368	2556	60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe	cmd.exe
PID 2556 wrote to memory of 2368	2556	60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe	cmd.exe
PID 2368 wrote to memory of 2408	2368	cmd.exe	taskkill.exe
PID 2368 wrote to memory of 2408	2368	cmd.exe	taskkill.exe
PID 2368 wrote to memory of 2408	2368	cmd.exe	taskkill.exe
PID 2368 wrote to memory of 2408	2368	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe
"C:\Users\Admin\AppData\Local\Temp\60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "60b5b44e2f4b3f0ac140cfeb211bfb5db10451ca4e4f22c20b529064753e05c2.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2408

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/2556-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/2556-2-0x0000000000220000-0x0000000000269000-memory.dmp

Filesize
292KB

Download
memory/2556-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2556-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2556-5-0x0000000000220000-0x0000000000269000-memory.dmp

Filesize
292KB

Download
memory/2556-4-0x0000000000400000-0x000000000089C000-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