gcleaner | 9f81b0dad3656a63aaeeba4b098390b50d7163f6c5ace889c4c25beae9946b93

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11-03-2023 15:47

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General

Target

0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe
Size

274KB
MD5

fc9d6c44a166ea2f7f93de619b904481
SHA1

e47a116cf55e7f3dbb141f0dc4b6c75875fec38a
SHA256

0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b
SHA512

4a60cc0a48f6ec442e6244d9b1a488b6644e250f726631dab286470eee80ccc5f86296abcbacdda233d4f7dbc24973fd8e1476ad302dba21c2302bc9c8a72cf2
SSDEEP

6144:QgnrhUFa2TGI5Z6p+F8duWDHoGjiXECnrSenXJ0v:Qgnr/2TGI5Z6pjEWSBneen5u

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
1456	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
1852	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 336 wrote to memory of 1456	336	0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe	30
PID 336 wrote to memory of 1456	336	0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe	30
PID 336 wrote to memory of 1456	336	0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe	30
PID 336 wrote to memory of 1456	336	0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe	30
PID 1456 wrote to memory of 1852	1456	cmd.exe	32
PID 1456 wrote to memory of 1852	1456	cmd.exe	32
PID 1456 wrote to memory of 1852	1456	cmd.exe	32
PID 1456 wrote to memory of 1852	1456	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe
"C:\Users\Admin\AppData\Local\Temp\0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1456
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "0bae28922ad0fc2e5d92b6bf45fd23efb20c2639fafef7bcb0e12b642e2a9f5b.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1852

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/336-55-0x00000000002B0000-0x00000000002F0000-memory.dmp

Filesize
256KB

Download
memory/336-57-0x0000000000400000-0x0000000000588000-memory.dmp

Filesize
1.5MB

Download