gcleaner | 95d29ef06b4fd4e882b341fb142b880179e79d20f643fcf8c9d8e15693be1833

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 00:56

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General

Target

JaffaCakes118_824846740481f400d9759e7f4694d869.exe
Size

431KB
MD5

824846740481f400d9759e7f4694d869
SHA1

a4ed2d684bb544929a4318d7883419cd7bcd1632
SHA256

95d29ef06b4fd4e882b341fb142b880179e79d20f643fcf8c9d8e15693be1833
SHA512

b4e1a815ba7096d8f40b493fa678eba3a1f4754aed5f2d35edb549f20162d4b2003e88868d38fa017bea31dc927bc7bf2f0ab9fa6338dbaec7e1cbff61b0d783
SSDEEP

12288:6aBNfc0nKmROQCOkj7+fLdumr9miXhDjZ1:Rj0MxRlC765umpth

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/2096-2-0x0000000002DD0000-0x0000000002E19000-memory.dmp	family_onlylogger
behavioral1/memory/2096-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2096-5-0x0000000002DD0000-0x0000000002E19000-memory.dmp	family_onlylogger
behavioral1/memory/2096-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2096-4-0x0000000000400000-0x0000000002DC3000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
2576	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_824846740481f400d9759e7f4694d869.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2108	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2576	2096	JaffaCakes118_824846740481f400d9759e7f4694d869.exe	30
PID 2096 wrote to memory of 2576	2096	JaffaCakes118_824846740481f400d9759e7f4694d869.exe	30
PID 2096 wrote to memory of 2576	2096	JaffaCakes118_824846740481f400d9759e7f4694d869.exe	30
PID 2096 wrote to memory of 2576	2096	JaffaCakes118_824846740481f400d9759e7f4694d869.exe	30
PID 2576 wrote to memory of 2108	2576	cmd.exe	32
PID 2576 wrote to memory of 2108	2576	cmd.exe	32
PID 2576 wrote to memory of 2108	2576	cmd.exe	32
PID 2576 wrote to memory of 2108	2576	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_824846740481f400d9759e7f4694d869.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_824846740481f400d9759e7f4694d869.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_824846740481f400d9759e7f4694d869.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_824846740481f400d9759e7f4694d869.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_824846740481f400d9759e7f4694d869.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2096-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

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memory/2096-2-0x0000000002DD0000-0x0000000002E19000-memory.dmp

Filesize
292KB

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memory/2096-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2096-5-0x0000000002DD0000-0x0000000002E19000-memory.dmp

Filesize
292KB

Download
memory/2096-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2096-4-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

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