gcleaner | e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3

General

Target
e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe
Size 302KB
Sample240926-28586atalj
SHA256 e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3
MD5 1493d42494ac3ede934f707489064704
SHA1 928ad3af445c99e8d4cbddb0f3bcac9cd9934ac4
SHA512 3f526b0ba2118fe333fbae26b252fce3dd601d19d38fd8e2cc4b75e2c0d396cab26916bd7fe4e66cf5b7f4cb4c3243006f91e9882674d5d82242c2d39b175002
SSDEEP 3072:kLihaKzMrehykeA1yfCxvO4vIesYCbCOTMxLe5RvXVYz3M5LSxZ2Hzaej:kLioAMrehyk3yalJIDdCZWvFYc5+i
MD5 SHA1 SHA512 SSDEEP

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
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
4524	2316	WerFault.exe	72
1164	2316	WerFault.exe	72
1516	2316	WerFault.exe	72
600	2316	WerFault.exe	72
4372	2316	WerFault.exe	72
4684	2316	WerFault.exe	72
168	2316	WerFault.exe	72
1824	2316	WerFault.exe	72

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	e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.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
2004	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 3736	2316	e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe	82
PID 2316 wrote to memory of 3736	2316	e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe	82
PID 2316 wrote to memory of 3736	2316	e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe	82
PID 3736 wrote to memory of 2004	3736	cmd.exe	84
PID 3736 wrote to memory of 2004	3736	cmd.exe	84
PID 3736 wrote to memory of 2004	3736	cmd.exe	84

C:\Users\Admin\AppData\Local\Temp\e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe
"C:\Users\Admin\AppData\Local\Temp\e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 760
  2⤵
  - Program crash
  PID:4524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 804
  2⤵
  - Program crash
  PID:1164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 892
  2⤵
  - Program crash
  PID:1516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 948
  2⤵
  - Program crash
  PID:600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 968
  2⤵
  - Program crash
  PID:4372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 1092
  2⤵
  - Program crash
  PID:4684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 1124
  2⤵
  - Program crash
  PID:168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 1264
  2⤵
  - Program crash
  PID:1824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3736
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "e2d23e698ab80f6945e034b0ddbcefb59a3afc7e30d59b393e4481df55800af3.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

download[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L5P12AEX\download[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/2316-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

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memory/2316-2-0x0000000000790000-0x00000000007BD000-memory.dmp

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memory/2316-3-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2316-8-0x00000000007C0000-0x00000000008C0000-memory.dmp

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memory/2316-10-0x0000000000400000-0x0000000000547000-memory.dmp

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memory/2316-11-0x0000000000790000-0x00000000007BD000-memory.dmp

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memory/2316-13-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2316-22-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2316-21-0x0000000000400000-0x0000000000547000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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