gcleaner | 8853715caa4502209f806afcded94a839120cc0885196b32d8d25f7e4a43dca3

Analysis

max time kernel
38s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
13/02/2023, 22:20

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General

Target
5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe
Size 261KB
Sample230213-183mlagg27
SHA256 8853715caa4502209f806afcded94a839120cc0885196b32d8d25f7e4a43dca3
MD5 5ec7c93c5bd4eb79ec7972bef2fcd3bf
SHA1 836489770811a3211cdb3742dd2c0d0dd18727a9
SHA512 92b00715cea1694b72ed33811e06361881df0f7f0c7a4701e8ae0f8327f093fca5f005d60ee6bcecb969ede80584878eba25d56b55beab7091008514ef8dfb35
SSDEEP 6144:BjF9RIFKu+51FdOrA2ujKfmbORxsCL6Mdz:BjHcKuK1Fx2mbOLN
MD5 SHA1 SHA512 SSDEEP

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

pid	Process
1804	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

pid	Process
664	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	664	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 1804	1864	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	28
PID 1864 wrote to memory of 1804	1864	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	28
PID 1864 wrote to memory of 1804	1864	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	28
PID 1864 wrote to memory of 1804	1864	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	28
PID 1804 wrote to memory of 664	1804	cmd.exe	30
PID 1804 wrote to memory of 664	1804	cmd.exe	30
PID 1804 wrote to memory of 664	1804	cmd.exe	30
PID 1804 wrote to memory of 664	1804	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe
"C:\Users\Admin\AppData\Local\Temp\5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1804
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:664

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

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Downloads

memory/1864-54-0x0000000075911000-0x0000000075913000-memory.dmp

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memory/1864-55-0x00000000006FB000-0x0000000000722000-memory.dmp

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memory/1864-56-0x0000000000230000-0x0000000000270000-memory.dmp

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memory/1864-57-0x0000000000400000-0x0000000000573000-memory.dmp

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memory/1864-59-0x00000000006FB000-0x0000000000722000-memory.dmp

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memory/1864-60-0x0000000000400000-0x0000000000573000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads