gcleaner | 2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9

General

Target

2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe
Size

315KB
MD5

5a9b83f10f1bad51a439c4d53292bc80
SHA1

2c94244a2ed78b44a1cdf25622f7f48f05ec0406
SHA256

2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9
SHA512

d474069a61e267fb532f8d424d7ec2359e487cc63776346b8586bcc148cef9949757cad77b5dcae191e30718a6ce7f83eb020ae7cb558f310d22b31717ce84f9
SSDEEP

6144:zEa0V9OAkOultrJ+59SPV9FDcF8CBuQTdJjWP:oaE9OROulBqSPVDmLhdJyP

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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
3548	5992	WerFault.exe	77
3436	5992	WerFault.exe	77
5224	5992	WerFault.exe	77
2240	5992	WerFault.exe	77
2308	5992	WerFault.exe	77
4208	5992	WerFault.exe	77
1060	5992	WerFault.exe	77
2936	5992	WerFault.exe	77
3812	5992	WerFault.exe	77

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	2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1892	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5992 wrote to memory of 1588	5992	2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe	95
PID 5992 wrote to memory of 1588	5992	2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe	95
PID 5992 wrote to memory of 1588	5992	2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe	95
PID 1588 wrote to memory of 1892	1588	cmd.exe	99
PID 1588 wrote to memory of 1892	1588	cmd.exe	99
PID 1588 wrote to memory of 1892	1588	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe
"C:\Users\Admin\AppData\Local\Temp\2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 476
  2⤵
  - Program crash
  PID:3548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 796
  2⤵
  - Program crash
  PID:3436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 804
  2⤵
  - Program crash
  PID:5224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 848
  2⤵
  - Program crash
  PID:2240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 888
  2⤵
  - Program crash
  PID:2308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 976
  2⤵
  - Program crash
  PID:4208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 1104
  2⤵
  - Program crash
  PID:1060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 1720
  2⤵
  - Program crash
  PID:2936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1588
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "2abe7481fd52631a699410b604375a8bfc62cb03c8ea7ab2442e8d46506062a9.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5992 -s 488
  2⤵
  - Program crash
  PID:3812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5992 -ip 5992
1⤵
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 5992 -ip 5992
1⤵
PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5992 -ip 5992
1⤵
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5992 -ip 5992
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5992 -ip 5992
1⤵
PID:4180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 5992 -ip 5992
1⤵
PID:6016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 5992 -ip 5992
1⤵
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5992 -ip 5992
1⤵
PID:1252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5992 -ip 5992
1⤵
PID:336

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\JL3S1NU9\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/5992-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/5992-2-0x00000000049D0000-0x0000000004A0B000-memory.dmp

Filesize
236KB

Download
memory/5992-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5992-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/5992-13-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/5992-16-0x00000000049D0000-0x0000000004A0B000-memory.dmp

Filesize
236KB

Download
memory/5992-15-0x0000000000400000-0x0000000002B6F000-memory.dmp

Filesize
39.4MB

Download
memory/5992-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5992-29-0x0000000000400000-0x0000000002B6F000-memory.dmp

Filesize
39.4MB

Download
memory/5992-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5992-35-0x0000000000400000-0x0000000002B6F000-memory.dmp

Filesize
39.4MB

Download

Analysis

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