gcleaner | 22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894

General

Target

22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe
Size

290KB
MD5

483d7732051a0cfb705c7bd926402556
SHA1

50e880ce1dadcac090461cdafdf5f5f48f66382d
SHA256

22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894
SHA512

fb771ec413bc8d5d4af4ce60bde8ff7c0c60f1616eb4bae1134235657dc6d0083bcef6f226c23bd4548dfbaee033d72ffa7ddd26d441ca37c9ea1f6c2f4c8a67
SSDEEP

6144:l5VJAK0ra6yHIm2k60h7WPoUsk7Gs7Mh4roDpW:l5VJAK0rJy1R60h7wFRZcP

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

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 10 IoCs

pid	pid_target	Process	procid_target
2204	5092	WerFault.exe	79
5076	5092	WerFault.exe	79
4720	5092	WerFault.exe	79
1204	5092	WerFault.exe	79
3312	5092	WerFault.exe	79
3920	5092	WerFault.exe	79
4064	5092	WerFault.exe	79
5084	5092	WerFault.exe	79
4760	5092	WerFault.exe	79
4980	5092	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	22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.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
1084	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 5072	5092	22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe	106
PID 5092 wrote to memory of 5072	5092	22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe	106
PID 5092 wrote to memory of 5072	5092	22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe	106
PID 5072 wrote to memory of 1084	5072	cmd.exe	108
PID 5072 wrote to memory of 1084	5072	cmd.exe	108
PID 5072 wrote to memory of 1084	5072	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe
"C:\Users\Admin\AppData\Local\Temp\22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 476
  2⤵
  - Program crash
  PID:2204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 480
  2⤵
  - Program crash
  PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 780
  2⤵
  - Program crash
  PID:4720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 816
  2⤵
  - Program crash
  PID:1204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 808
  2⤵
  - Program crash
  PID:3312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 852
  2⤵
  - Program crash
  PID:3920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 960
  2⤵
  - Program crash
  PID:4064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1092
  2⤵
  - Program crash
  PID:5084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1460
  2⤵
  - Program crash
  PID:4760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1732
  2⤵
  - Program crash
  PID:4980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5072
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "22b301c8e53a4d13ea7517f4e8d953c8911bb590ff50643177d094957a9f3894.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:1084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5092 -ip 5092
1⤵
PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5092 -ip 5092
1⤵
PID:1184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5092 -ip 5092
1⤵
PID:3824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 5092 -ip 5092
1⤵
PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 5092 -ip 5092
1⤵
PID:3320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5092 -ip 5092
1⤵
PID:3356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 5092 -ip 5092
1⤵
PID:1068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5092 -ip 5092
1⤵
PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5092 -ip 5092
1⤵
PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5092 -ip 5092
1⤵
PID:4692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\ZQ9FC15F\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/5092-2-0x00000000022A0000-0x00000000022DC000-memory.dmp

Filesize
240KB

Download
memory/5092-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/5092-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5092-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/5092-12-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/5092-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5092-15-0x00000000022A0000-0x00000000022DC000-memory.dmp

Filesize
240KB

Download
memory/5092-16-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5092-30-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5092-36-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5092-37-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download

Analysis

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