gcleaner | bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 01:37

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General

Target

bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe
Size

318KB
MD5

cba3f9974037954c98332d3dda35ec57
SHA1

35686b7040f2a2b9cc8a3f9f183eb05b0a2eb528
SHA256

bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797
SHA512

624d1d5d4412f7af1ec7bfdee2576d52adcb0b32e834e7b835ce147446b7576ab8cb5708664804712f521761f2192cfc7723950421785c7287dfb1ad1f854505
SSDEEP

6144:dLLM7USXRBqZ/Wgg+ZckFumgThM/5y6F5:dLI7USXRM/WTAHkmgTCs

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
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2248 cmd.exe

pid	process
2248	cmd.exe

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

Processes:

cmd.exetaskkill.exebd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2532 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2532 taskkill.exe

pid	process
2532	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2532	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.execmd.exe

description	pid	process	target process
PID 2756 wrote to memory of 2248	2756	bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe	cmd.exe
PID 2756 wrote to memory of 2248	2756	bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe	cmd.exe
PID 2756 wrote to memory of 2248	2756	bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe	cmd.exe
PID 2756 wrote to memory of 2248	2756	bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe	cmd.exe
PID 2248 wrote to memory of 2532	2248	cmd.exe	taskkill.exe
PID 2248 wrote to memory of 2532	2248	cmd.exe	taskkill.exe
PID 2248 wrote to memory of 2532	2248	cmd.exe	taskkill.exe
PID 2248 wrote to memory of 2532	2248	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe
"C:\Users\Admin\AppData\Local\Temp\bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "bd6c330fd96af047d02de131aa63fd81c068b58ff8f6ceb675b930b6a7ba9797.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ROLMKJ86\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2756-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2756-2-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2756-3-0x0000000000400000-0x000000000054B000-memory.dmp

Filesize
1.3MB

Download
memory/2756-9-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2756-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2756-11-0x0000000000400000-0x000000000054B000-memory.dmp

Filesize
1.3MB

Download
memory/2756-21-0x0000000000400000-0x000000000054B000-memory.dmp

Filesize
1.3MB

Download
memory/2756-23-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2756-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download