gcleaner | 5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb

Analysis

max time kernel
91s
max time network
94s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
04-09-2024 13:10

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General

Target

5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe
Size

300KB
MD5

5a4769753ffcbd37617b180faa65a7a5
SHA1

158eef397b0262e1ff600b4ea58e889d928b8750
SHA256

5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb
SHA512

2610097db3e9b53c0179e30fd86d2d1dda17616157ec3f8a4fe6159be160cd276872834583c7ffd5fe23a33db8feaff0f1d51021e2970266a68d52c84e35ad7b
SSDEEP

6144:lfHn+TbryKfN/dRwYqu1EgcCey0wLk6arrYcTVp:5Hn+TPyK5quugveLEQrrYoV

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

80.66.75.114

45.91.200.135

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file
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
2512	2252	WerFault.exe	79

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	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.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
2248	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2956	2252	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe	82
PID 2252 wrote to memory of 2956	2252	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe	82
PID 2252 wrote to memory of 2956	2252	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe	82
PID 2956 wrote to memory of 2248	2956	cmd.exe	85
PID 2956 wrote to memory of 2248	2956	cmd.exe	85
PID 2956 wrote to memory of 2248	2956	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe
"C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 1572
  2⤵
  - Program crash
  PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2252 -ip 2252
1⤵
PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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\INetCache\IE\OZ1VS64O\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2252-1-0x0000000000730000-0x0000000000830000-memory.dmp

Filesize
1024KB

Download
memory/2252-2-0x00000000006D0000-0x000000000070B000-memory.dmp

Filesize
236KB

Download
memory/2252-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2252-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2252-13-0x0000000000730000-0x0000000000830000-memory.dmp

Filesize
1024KB

Download
memory/2252-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2252-16-0x00000000006D0000-0x000000000070B000-memory.dmp

Filesize
236KB

Download
memory/2252-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2252-29-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2252-35-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2252-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download