gcleaner | d77070d28de1a518f82a9c7674ad46ac5f97f44db2df0c6bdd27cb1b66934db8

General

Target

dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
Size

270KB
MD5

0b58b97488ac17f7aa80c4581966782d
SHA1

d8fc50d1115b21fb3c02311c08ef651cd2808a2a
SHA256

dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29
SHA512

a842310d98a7d9a54a98fd593febcbbad2f963e2a3599218ac5fdbb8c526b2f7ee6113cae3443386384533f81e02ba46883a2663b0fe0a38f5dde544231bc82c
SSDEEP

6144:ZSpkt9lfdyRqKoFrWvzpjhLY/qM8Q50/OP3Xp6Z/ofA:ZWkbpdyRqKvvzhhLkqM8lO5Io

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
1316	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
244	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
1828	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
4828	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
3228	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
1748	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
4608	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
3748	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
3948	1372	WerFault.exe	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3444 taskkill.exe

pid	process
3444	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe

pid	process
1372	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
1372	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3444 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3444	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.execmd.exe

description	pid	process	target process
PID 1372 wrote to memory of 2872	1372	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe	cmd.exe
PID 1372 wrote to memory of 2872	1372	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe	cmd.exe
PID 1372 wrote to memory of 2872	1372	dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe	cmd.exe
PID 2872 wrote to memory of 3444	2872	cmd.exe	taskkill.exe
PID 2872 wrote to memory of 3444	2872	cmd.exe	taskkill.exe
PID 2872 wrote to memory of 3444	2872	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe
"C:\Users\Admin\AppData\Local\Temp\dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 452
  2⤵
  - Program crash
  PID:1316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 764
  2⤵
  - Program crash
  PID:244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 772
  2⤵
  - Program crash
  PID:1828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 772
  2⤵
  - Program crash
  PID:4828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 836
  2⤵
  - Program crash
  PID:3228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 928
  2⤵
  - Program crash
  PID:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 932
  2⤵
  - Program crash
  PID:4608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 1364
  2⤵
  - Program crash
  PID:3748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2872
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "dac1de6b2503baa1e80b0c90555aa87b663cd6a8e57651c97aae775defbe8f29.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 1376
  2⤵
  - Program crash
  PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1372 -ip 1372
1⤵
PID:2960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1372 -ip 1372
1⤵
PID:1384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1372 -ip 1372
1⤵
PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1372 -ip 1372
1⤵
PID:892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1372 -ip 1372
1⤵
PID:1016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1372 -ip 1372
1⤵
PID:2824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1372 -ip 1372
1⤵
PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1372 -ip 1372
1⤵
PID:4152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1372 -ip 1372
1⤵
PID:496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1372-134-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/1372-135-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1372-141-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads