gcleaner | 18488d4d0c555096f88972d08c2765b8021b39bd698db9f78370b9dc7bfdecd3

Analysis

max time kernel
23s
max time network
35s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
10-03-2023 11:26

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General

Target

5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe
Size

389KB
MD5

4f91267891bbcb4d8800ece961d93f42
SHA1

facb2ec17ee80ec70a9c2072ff895e9070d5bdc2
SHA256

5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f
SHA512

aa08542e4d71e3810b0e742276033d096ef4756e899874ed48585c2be52d1f4d579dbe932bbcf3b144a62c10ea59a155e3ca502edb43adfac72312d28f3eabde
SSDEEP

6144:mkArCLEiyQEw4fhXgdRbAFBr9eTRN4PzEk+S662w0:myIiyQFIh5K47pJvR

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

1616 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

520 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 520 taskkill.exe

pid	process
1616	cmd.exe

pid	process
520	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	520	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.execmd.exe

description	pid	process	target process
PID 1364 wrote to memory of 1616	1364	5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe	cmd.exe
PID 1364 wrote to memory of 1616	1364	5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe	cmd.exe
PID 1364 wrote to memory of 1616	1364	5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe	cmd.exe
PID 1364 wrote to memory of 1616	1364	5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe	cmd.exe
PID 1616 wrote to memory of 520	1616	cmd.exe	taskkill.exe
PID 1616 wrote to memory of 520	1616	cmd.exe	taskkill.exe
PID 1616 wrote to memory of 520	1616	cmd.exe	taskkill.exe
PID 1616 wrote to memory of 520	1616	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe
"C:\Users\Admin\AppData\Local\Temp\5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5e0687c0c3822213bb9710c1499e6b57d87bbe12285dbf059fbb4750294c070f.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:520

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/1364-55-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/1364-56-0x0000000000400000-0x0000000002BCF000-memory.dmp

Filesize
39.8MB

Download
memory/1364-57-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download