gcleaner | 4edce68e3a00bd0c2e6e466e7f1be27e8b45b4c0001684b4f3f8b725b2828024

General

Target

5932438d564a576e7422056150530700N.exe
Size

257KB
MD5

5932438d564a576e7422056150530700
SHA1

c141182f2a0ac354814ad70d9e4cc97fd68473a2
SHA256

4edce68e3a00bd0c2e6e466e7f1be27e8b45b4c0001684b4f3f8b725b2828024
SHA512

07ecc3db60c184d498e653af51302e60f9e518ac8e6703203e721018a0e5a5ad3c7140a048b3f1d16aa43ec9d94e37843a3625c44d3ff0184531d0b7231f15cb
SSDEEP

6144:v4XERTEEiPeqnMZYUVY0nJ6R77Mh/zrJ3D2W:vMERIBP5MZYUVYGJ6R7cfJz

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	5932438d564a576e7422056150530700N.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
2964	3944	WerFault.exe	83
1916	3944	WerFault.exe	83
4952	3944	WerFault.exe	83
3304	3944	WerFault.exe	83
4256	3944	WerFault.exe	83
1564	3944	WerFault.exe	83
2748	3944	WerFault.exe	83
1088	3944	WerFault.exe	83

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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5932438d564a576e7422056150530700N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2316	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 1560	3944	5932438d564a576e7422056150530700N.exe	108
PID 3944 wrote to memory of 1560	3944	5932438d564a576e7422056150530700N.exe	108
PID 3944 wrote to memory of 1560	3944	5932438d564a576e7422056150530700N.exe	108
PID 1560 wrote to memory of 2316	1560	cmd.exe	111
PID 1560 wrote to memory of 2316	1560	cmd.exe	111
PID 1560 wrote to memory of 2316	1560	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\5932438d564a576e7422056150530700N.exe
"C:\Users\Admin\AppData\Local\Temp\5932438d564a576e7422056150530700N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 740
  2⤵
  - Program crash
  PID:2964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 780
  2⤵
  - Program crash
  PID:1916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 800
  2⤵
  - Program crash
  PID:4952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 832
  2⤵
  - Program crash
  PID:3304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 904
  2⤵
  - Program crash
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 992
  2⤵
  - Program crash
  PID:1564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 1444
  2⤵
  - Program crash
  PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5932438d564a576e7422056150530700N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5932438d564a576e7422056150530700N.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5932438d564a576e7422056150530700N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 1576
  2⤵
  - Program crash
  PID:1088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3944 -ip 3944
1⤵
PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3944 -ip 3944
1⤵
PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3944 -ip 3944
1⤵
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3944 -ip 3944
1⤵
PID:1652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3944 -ip 3944
1⤵
PID:2968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3944 -ip 3944
1⤵
PID:864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3944 -ip 3944
1⤵
PID:4752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3944 -ip 3944
1⤵
PID:1752

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/3944-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/3944-2-0x0000000000490000-0x00000000004BD000-memory.dmp

Filesize
180KB

Download
memory/3944-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3944-8-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/3944-10-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3944-11-0x0000000000490000-0x00000000004BD000-memory.dmp

Filesize
180KB

Download
memory/3944-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3944-21-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3944-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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