gcleaner | 88cbe2d54cddbcce022dcd2dfcadb99eba4281e140d61c9820e9cbf726cd9fe9

General

Target

151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe
Size

311KB
MD5

9544821ed3db4db3c54f0d795bbc1ab6
SHA1

3dd2d16955d4e6db85051e9f368407a9d9b6870e
SHA256

151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a
SHA512

949cdade7a42a649f9daa2fd2940bf01c5bb4670e1bb3e7773fa76872da0ea1858009d6ee0f479638e8f3ee178d86d61b4750f61f768fdc0914f0994e68f6304
SSDEEP

6144:7f4ZKa9IPz9hmiXK8+JjdYX+VpU/UB9Xi:r4gKIPz7mid+Jj6X+YcL

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.115

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
2664	208	WerFault.exe	84
3628	208	WerFault.exe	84
3608	208	WerFault.exe	84
3044	208	WerFault.exe	84
1572	208	WerFault.exe	84
3328	208	WerFault.exe	84
4028	208	WerFault.exe	84
1796	208	WerFault.exe	84
4528	208	WerFault.exe	84

Kills process with taskkill 1 IoCs

evasion

pid	Process
2568	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 1272	208	151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe	106
PID 208 wrote to memory of 1272	208	151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe	106
PID 208 wrote to memory of 1272	208	151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe	106
PID 1272 wrote to memory of 2568	1272	cmd.exe	110
PID 1272 wrote to memory of 2568	1272	cmd.exe	110
PID 1272 wrote to memory of 2568	1272	cmd.exe	110

C:\Users\Admin\AppData\Local\Temp\151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe
"C:\Users\Admin\AppData\Local\Temp\151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 740
  2⤵
  - Program crash
  PID:2664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 784
  2⤵
  - Program crash
  PID:3628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 772
  2⤵
  - Program crash
  PID:3608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 832
  2⤵
  - Program crash
  PID:3044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 904
  2⤵
  - Program crash
  PID:1572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 908
  2⤵
  - Program crash
  PID:3328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 916
  2⤵
  - Program crash
  PID:4028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 1340
  2⤵
  - Program crash
  PID:1796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1272
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 1296
  2⤵
  - Program crash
  PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 208 -ip 208
1⤵
PID:2968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 208 -ip 208
1⤵
PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 208 -ip 208
1⤵
PID:2660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 208 -ip 208
1⤵
PID:3284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 208 -ip 208
1⤵
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 208 -ip 208
1⤵
PID:1348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 208 -ip 208
1⤵
PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 208 -ip 208
1⤵
PID:2808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 632 -p 208 -ip 208
1⤵
PID:4900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

memory/208-1-0x0000000000C90000-0x0000000000D90000-memory.dmp

Filesize
1024KB

Download
memory/208-2-0x0000000002840000-0x000000000286D000-memory.dmp

Filesize
180KB

Download
memory/208-3-0x0000000000400000-0x0000000000AF7000-memory.dmp

Filesize
7.0MB

Download
memory/208-5-0x0000000000400000-0x0000000000AF7000-memory.dmp

Filesize
7.0MB

Download
memory/208-6-0x0000000002840000-0x000000000286D000-memory.dmp

Filesize
180KB

Download

Analysis

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