gcleaner | 04d92877f99c177d348c2c51173303ab27b02989a23c5377105a33394730dfb0

Analysis

max time kernel
27s
max time network
30s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
15/02/2023, 13:41

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General

Target

30c67e476b26bcb2e4bbfa5a6dfce89c.exe
Size

275KB
MD5

30c67e476b26bcb2e4bbfa5a6dfce89c
SHA1

7dd773c04ae06cf57ca00d883b33d0eb1dbecf59
SHA256

04d92877f99c177d348c2c51173303ab27b02989a23c5377105a33394730dfb0
SHA512

dbeec6710dfca8150929fb043dfb44fc9eea2b71b58536e9f3f47bda8189e41ca760759af1d0284a9d88b801f23b97533d69bf0386e2d53eaf7b02b7282e5490
SSDEEP

3072:TqaW5aiXxr+eLjuC0E0kDwIYeHnPRluTb1kzbdV1zrphQvlfXle2OiQaV:TK5a0B+eLjR1YeHntbJRhQvbnOiQ

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
308	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
1520	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 308	964	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	28
PID 964 wrote to memory of 308	964	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	28
PID 964 wrote to memory of 308	964	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	28
PID 964 wrote to memory of 308	964	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	28
PID 308 wrote to memory of 1520	308	cmd.exe	30
PID 308 wrote to memory of 1520	308	cmd.exe	30
PID 308 wrote to memory of 1520	308	cmd.exe	30
PID 308 wrote to memory of 1520	308	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\30c67e476b26bcb2e4bbfa5a6dfce89c.exe
"C:\Users\Admin\AppData\Local\Temp\30c67e476b26bcb2e4bbfa5a6dfce89c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "30c67e476b26bcb2e4bbfa5a6dfce89c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\30c67e476b26bcb2e4bbfa5a6dfce89c.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:308
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "30c67e476b26bcb2e4bbfa5a6dfce89c.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1520

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/964-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download
memory/964-56-0x00000000009DB000-0x0000000000A02000-memory.dmp

Filesize
156KB

Download
memory/964-57-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/964-58-0x0000000000400000-0x0000000000577000-memory.dmp

Filesize
1.5MB

Download