gcleaner | 58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151

General

Target

58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe
Size

270KB
MD5

22df7a8bc6564532859324f9f73f07b9
SHA1

9ac8b53488e972283c4b40ba7173e09f5dddd23e
SHA256

58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151
SHA512

b96128c356e42aeba253da27d644a6222a776bc25e7a02d5d7cf0648c22b8dbdb171c375f2d7c22e2d8f43cc9cc353f3807b725a36a3dd9df7fe9173be635767
SSDEEP

6144:DAxafH3gMKR1/ojCWEROv+DyBHXvXT7a04pI:DPH3gMu1AjC30vj7aJp

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
4876	3552	WerFault.exe	84
312	3552	WerFault.exe	84
1748	3552	WerFault.exe	84
1680	3552	WerFault.exe	84
2548	3552	WerFault.exe	84
4884	3552	WerFault.exe	84
3844	3552	WerFault.exe	84
3252	3552	WerFault.exe	84

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	58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.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
4316	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4316	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3552 wrote to memory of 384	3552	58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe	111
PID 3552 wrote to memory of 384	3552	58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe	111
PID 3552 wrote to memory of 384	3552	58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe	111
PID 384 wrote to memory of 4316	384	cmd.exe	115
PID 384 wrote to memory of 4316	384	cmd.exe	115
PID 384 wrote to memory of 4316	384	cmd.exe	115

C:\Users\Admin\AppData\Local\Temp\58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe
"C:\Users\Admin\AppData\Local\Temp\58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 740
  2⤵
  - Program crash
  PID:4876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 752
  2⤵
  - Program crash
  PID:312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 740
  2⤵
  - Program crash
  PID:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 812
  2⤵
  - Program crash
  PID:1680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 904
  2⤵
  - Program crash
  PID:2548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 956
  2⤵
  - Program crash
  PID:4884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1428
  2⤵
  - Program crash
  PID:3844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:384
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "58a8715a6652319788b334021b474a93c1595b3ea8ad411b881c5e84402bc151.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1440
  2⤵
  - Program crash
  PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3552 -ip 3552
1⤵
PID:1596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3552 -ip 3552
1⤵
PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3552 -ip 3552
1⤵
PID:2144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3552 -ip 3552
1⤵
PID:4332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 3552 -ip 3552
1⤵
PID:1456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 3552 -ip 3552
1⤵
PID:4000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3552 -ip 3552
1⤵
PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3552 -ip 3552
1⤵
PID:3924

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\951G8FD5\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3552-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/3552-2-0x0000000002190000-0x00000000021BD000-memory.dmp

Filesize
180KB

Download
memory/3552-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3552-8-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/3552-9-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/3552-11-0x0000000002190000-0x00000000021BD000-memory.dmp

Filesize
180KB

Download
memory/3552-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3552-21-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/3552-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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