gcleaner | 9382b14d05294e88954bc799f7cbf86f98959c60ffa06f0e02dedad5d7230c49

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 23:37

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General

Target

JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe
Size

432KB
MD5

41028752ad94dc4206e7532332bb4b5a
SHA1

f7bb7ebb3667f4b748252529402f96df43b5de41
SHA256

9382b14d05294e88954bc799f7cbf86f98959c60ffa06f0e02dedad5d7230c49
SHA512

3697f029b9b6f36655d1f3ced5efdff3e855801d65eadf97ad686edd77898bb42b58f211ea21cd3c612e46778308998edbb4f748362704bfa97a3aa81cce9e77
SSDEEP

6144:ZU+m2xF9/rN4+QlMMzb4t9jNtfnMptCrqKYJV9x0YiqE1Kefq2PzFEWbItp38JV/:Z2IP0ct9LMp0rqKYtXTg/q2rFx6MJ

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

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

resource	yara_rule
behavioral1/memory/2848-2-0x00000000001B0000-0x00000000001F9000-memory.dmp	family_onlylogger
behavioral1/memory/2848-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2848-5-0x00000000001B0000-0x00000000001F9000-memory.dmp	family_onlylogger
behavioral1/memory/2848-4-0x0000000000400000-0x000000000089B000-memory.dmp	family_onlylogger
behavioral1/memory/2848-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
2236	cmd.exe

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

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.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

pid	Process
2572	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2236	2848	JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe	30
PID 2848 wrote to memory of 2236	2848	JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe	30
PID 2848 wrote to memory of 2236	2848	JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe	30
PID 2848 wrote to memory of 2236	2848	JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe	30
PID 2236 wrote to memory of 2572	2236	cmd.exe	32
PID 2236 wrote to memory of 2572	2236	cmd.exe	32
PID 2236 wrote to memory of 2572	2236	cmd.exe	32
PID 2236 wrote to memory of 2572	2236	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_41028752ad94dc4206e7532332bb4b5a.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2848-2-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

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memory/2848-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

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memory/2848-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2848-5-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/2848-4-0x0000000000400000-0x000000000089B000-memory.dmp

Filesize
4.6MB

Download
memory/2848-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

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