gcleaner | 65e20e0a32a80a16df59c15013463c1e5b53d46058f318d3b0902ce1adb1176f

Analysis

max time kernel
31s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16-03-2023 16:08

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General

Target

0862f44e651679c949897c48776ecfd4.exe
Size

370KB
MD5

0862f44e651679c949897c48776ecfd4
SHA1

154eb5dfbffdb3495b46681a9434842e393e5e65
SHA256

65e20e0a32a80a16df59c15013463c1e5b53d46058f318d3b0902ce1adb1176f
SHA512

91ebd86488f120d71ad47f0c1f599da784363017aa5aad63142e002a0b74276c3a64cfbda890911e2a6cbd79ce7392ef4d3dfe9d607064ef32a1876f930c5899
SSDEEP

6144:kNRDLh8LpOznZvCPXSKHXSogTL5jd+LX:kzV8MqPXS6XgFda

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2036 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

328 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 328 taskkill.exe

pid	process
2036	cmd.exe

pid	process
328	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	328	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0862f44e651679c949897c48776ecfd4.execmd.exe

description	pid	process	target process
PID 1296 wrote to memory of 2036	1296	0862f44e651679c949897c48776ecfd4.exe	cmd.exe
PID 1296 wrote to memory of 2036	1296	0862f44e651679c949897c48776ecfd4.exe	cmd.exe
PID 1296 wrote to memory of 2036	1296	0862f44e651679c949897c48776ecfd4.exe	cmd.exe
PID 1296 wrote to memory of 2036	1296	0862f44e651679c949897c48776ecfd4.exe	cmd.exe
PID 2036 wrote to memory of 328	2036	cmd.exe	taskkill.exe
PID 2036 wrote to memory of 328	2036	cmd.exe	taskkill.exe
PID 2036 wrote to memory of 328	2036	cmd.exe	taskkill.exe
PID 2036 wrote to memory of 328	2036	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\0862f44e651679c949897c48776ecfd4.exe
"C:\Users\Admin\AppData\Local\Temp\0862f44e651679c949897c48776ecfd4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "0862f44e651679c949897c48776ecfd4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0862f44e651679c949897c48776ecfd4.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "0862f44e651679c949897c48776ecfd4.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1296-55-0x0000000000400000-0x0000000002B20000-memory.dmp

Filesize
39.1MB

Download
memory/1296-56-0x0000000002B20000-0x0000000002B60000-memory.dmp

Filesize
256KB

Download