gcleaner | 5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb

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

C2

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

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.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
3152	2488	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	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
1684	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 932	2488	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe	95
PID 2488 wrote to memory of 932	2488	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe	95
PID 2488 wrote to memory of 932	2488	5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe	95
PID 932 wrote to memory of 1684	932	cmd.exe	99
PID 932 wrote to memory of 1684	932	cmd.exe	99
PID 932 wrote to memory of 1684	932	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe
"C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- 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:932
- - 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:1684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1596
  2⤵
  - Program crash
  PID:3152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2488 -ip 2488
1⤵
PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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\KDOTUZKP\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2488-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2488-2-0x0000000000600000-0x000000000063B000-memory.dmp

Filesize
236KB

Download
memory/2488-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2488-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2488-13-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2488-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2488-16-0x0000000000600000-0x000000000063B000-memory.dmp

Filesize
236KB

Download
memory/2488-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2488-27-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2488-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2488-35-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

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