gcleaner | 1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-10-2024 17:02

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General

Target

1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe
Size

271KB
MD5

b0837166cff92b061636c23f5c0575f0
SHA1

90de8a54b85cf32dc41e4aaa00c5cd5e39ce9ca0
SHA256

1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96
SHA512

e1faf43d7838dfbb32e44005f062ceefa91e37246acde424f409bcd8b5ddc8e63d9e1f484c4b316cc490a27311c306214fc799075b589dcb806951cec551ce02
SSDEEP

6144:IKuLHDwL0WVe3Mid4UXy+LKgTZeyMNXT:IKuDDbWA3bpYgTrMp

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

pid	Process
3020	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

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	1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2704	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 3020	1984	1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe	32
PID 1984 wrote to memory of 3020	1984	1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe	32
PID 1984 wrote to memory of 3020	1984	1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe	32
PID 1984 wrote to memory of 3020	1984	1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe	32
PID 3020 wrote to memory of 2704	3020	cmd.exe	34
PID 3020 wrote to memory of 2704	3020	cmd.exe	34
PID 3020 wrote to memory of 2704	3020	cmd.exe	34
PID 3020 wrote to memory of 2704	3020	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe
"C:\Users\Admin\AppData\Local\Temp\1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3020
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1bc494e04bb41e754b1b1b867e0d1af9ada161b11bc4bb0f1859ce7c431eed96N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2704

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\D6V88JEY\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1984-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/1984-2-0x0000000000220000-0x000000000024D000-memory.dmp

Filesize
180KB

Download
memory/1984-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1984-7-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/1984-10-0x0000000000220000-0x000000000024D000-memory.dmp

Filesize
180KB

Download
memory/1984-9-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/1984-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1984-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1984-22-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/1984-21-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download