gcleaner | 320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed

General

Target

320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe
Size

432KB
MD5

4c4adc52426bf04827c80d0ac19de6ca
SHA1

f12354115ee39e97fe7ec1136dd2d37d1b8eb4f0
SHA256

320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed
SHA512

4d1db3adafda45149103756fc38a6db2f1b4ac9d3a073235f3f48d5f326a96e066b920aecf7b9534034a54f4583099f5d1de40d2f1eac4da48ca0429ec21b7d1
SSDEEP

6144:e1tier8fUM8C8OF//cf4DAvK5Dz4jP5QGAVx9b07ENCctE1SP+28OK+lsO:8i+8fwvOF//coD5z47DAF06tE1Cpb

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
4712	4384	WerFault.exe	86
5036	4384	WerFault.exe	86
5116	4384	WerFault.exe	86
2212	4384	WerFault.exe	86
2756	4384	WerFault.exe	86
4888	4384	WerFault.exe	86
1424	4384	WerFault.exe	86
2960	4384	WerFault.exe	86
3576	4384	WerFault.exe	86
2148	4384	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3284	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3284	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 1400	4384	320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe	116
PID 4384 wrote to memory of 1400	4384	320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe	116
PID 4384 wrote to memory of 1400	4384	320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe	116
PID 1400 wrote to memory of 3284	1400	cmd.exe	120
PID 1400 wrote to memory of 3284	1400	cmd.exe	120
PID 1400 wrote to memory of 3284	1400	cmd.exe	120

C:\Users\Admin\AppData\Local\Temp\320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe
"C:\Users\Admin\AppData\Local\Temp\320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 740
  2⤵
  - Program crash
  PID:4712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 760
  2⤵
  - Program crash
  PID:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 808
  2⤵
  - Program crash
  PID:5116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 828
  2⤵
  - Program crash
  PID:2212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 904
  2⤵
  - Program crash
  PID:2756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 980
  2⤵
  - Program crash
  PID:4888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 744
  2⤵
  - Program crash
  PID:1424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1268
  2⤵
  - Program crash
  PID:2960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1332
  2⤵
  - Program crash
  PID:3576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "320c87d33cc5fff2dea028fb34ab69840f8679f085b2bacbf42becbec0891aed.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1460
  2⤵
  - Program crash
  PID:2148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4384 -ip 4384
1⤵
PID:844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4384 -ip 4384
1⤵
PID:3288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4384 -ip 4384
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4384 -ip 4384
1⤵
PID:4980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4384 -ip 4384
1⤵
PID:2316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4384 -ip 4384
1⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4384 -ip 4384
1⤵
PID:4376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4384 -ip 4384
1⤵
PID:3732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4384 -ip 4384
1⤵
PID:2608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4384 -ip 4384
1⤵
PID:2644

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YHMF37VK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4384-1-0x0000000002620000-0x0000000002720000-memory.dmp

Filesize
1024KB

Download
memory/4384-2-0x00000000041C0000-0x00000000041ED000-memory.dmp

Filesize
180KB

Download
memory/4384-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4384-4-0x0000000002620000-0x0000000002720000-memory.dmp

Filesize
1024KB

Download
memory/4384-6-0x00000000041C0000-0x00000000041ED000-memory.dmp

Filesize
180KB

Download
memory/4384-5-0x0000000000400000-0x0000000002486000-memory.dmp

Filesize
32.5MB

Download
memory/4384-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4384-18-0x0000000000400000-0x0000000002486000-memory.dmp

Filesize
32.5MB

Download
memory/4384-32-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4384-31-0x0000000000400000-0x0000000002486000-memory.dmp

Filesize
32.5MB

Download

Analysis

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