gcleaner | 1f12a71ab132b30e7cba59d73b9bc6f69d0f650edbef04a9d749e4bddbcf4f65

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-09-2024 01:48

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General

Target

387c998d5bec37b97155fbb481efa100N.exe
Size

294KB
MD5

387c998d5bec37b97155fbb481efa100
SHA1

c0ee4c58af4bf6ac6bb75cf280f532b084e8354b
SHA256

1f12a71ab132b30e7cba59d73b9bc6f69d0f650edbef04a9d749e4bddbcf4f65
SHA512

28abdab58d49e8e4a2937e00592edf0090c7ca0b2aebe228294303c0f9833845dc1a3a296622faa34859bb62b938744232ca9a8623afa4c916b85aa693c61a71
SSDEEP

6144:X/DaoUiX/Io29KOuxt9v6j5c5k2w7fIb/MI4M0Vdh1tQ:X7aozvIo29VQLCjW5k28Is1Vdz

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	387c998d5bec37b97155fbb481efa100N.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4404	3652	WerFault.exe	82

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	387c998d5bec37b97155fbb481efa100N.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
4392	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 1776	3652	387c998d5bec37b97155fbb481efa100N.exe	93
PID 3652 wrote to memory of 1776	3652	387c998d5bec37b97155fbb481efa100N.exe	93
PID 3652 wrote to memory of 1776	3652	387c998d5bec37b97155fbb481efa100N.exe	93
PID 1776 wrote to memory of 4392	1776	cmd.exe	97
PID 1776 wrote to memory of 4392	1776	cmd.exe	97
PID 1776 wrote to memory of 4392	1776	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\387c998d5bec37b97155fbb481efa100N.exe
"C:\Users\Admin\AppData\Local\Temp\387c998d5bec37b97155fbb481efa100N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "387c998d5bec37b97155fbb481efa100N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\387c998d5bec37b97155fbb481efa100N.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1776
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "387c998d5bec37b97155fbb481efa100N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 1384
  2⤵
  - Program crash
  PID:4404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3652 -ip 3652
1⤵
PID:2240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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\2VX66VOV\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3652-1-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download
memory/3652-2-0x0000000002060000-0x000000000208D000-memory.dmp

Filesize
180KB

Download
memory/3652-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3652-9-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download
memory/3652-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3652-12-0x0000000002060000-0x000000000208D000-memory.dmp

Filesize
180KB

Download
memory/3652-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3652-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3652-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download