gcleaner | 14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1

General

Target

14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe
Size

396KB
MD5

24e74d47ca49024c5ed05f4658524cf3
SHA1

7575ee755c5c5a8c8890ee1853ab3fc03225cb92
SHA256

14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1
SHA512

19da475686c1e7c1685e14e5d1181b87a29e8dfa553c90fad4cf4ba8d42a8d13b5e19fb228900637e1899d8295e2f4b2e1096e837a010166de7f3fc624cff4e7
SSDEEP

6144:W1SzN8f1qWfBOmP9lh3FCDZ1JeAjKe/JNOCliDZ:a2N8NqUOmP9lh8d1Jeqz/+Mo

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
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
4548	568	WerFault.exe	80
3260	568	WerFault.exe	80
4180	568	WerFault.exe	80
780	568	WerFault.exe	80
2016	568	WerFault.exe	80
840	568	WerFault.exe	80
1752	568	WerFault.exe	80
3004	568	WerFault.exe	80
1840	568	WerFault.exe	80

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	14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.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
2300	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 568 wrote to memory of 1876	568	14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe	100
PID 568 wrote to memory of 1876	568	14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe	100
PID 568 wrote to memory of 1876	568	14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe	100
PID 1876 wrote to memory of 2300	1876	cmd.exe	104
PID 1876 wrote to memory of 2300	1876	cmd.exe	104
PID 1876 wrote to memory of 2300	1876	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe
"C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 776
  2⤵
  - Program crash
  PID:4548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 784
  2⤵
  - Program crash
  PID:3260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 784
  2⤵
  - Program crash
  PID:4180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 808
  2⤵
  - Program crash
  PID:780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 956
  2⤵
  - Program crash
  PID:2016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1080
  2⤵
  - Program crash
  PID:840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1120
  2⤵
  - Program crash
  PID:1752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1444
  2⤵
  - Program crash
  PID:3004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2300
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1468
  2⤵
  - Program crash
  PID:1840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 568 -ip 568
1⤵
PID:3008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 568 -ip 568
1⤵
PID:32

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 568 -ip 568
1⤵
PID:4344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 568 -ip 568
1⤵
PID:1852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 568 -ip 568
1⤵
PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 568 -ip 568
1⤵
PID:4340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 568 -ip 568
1⤵
PID:420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 568 -ip 568
1⤵
PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 568 -ip 568
1⤵
PID:3820

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\FF387UFK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/568-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/568-2-0x0000000002440000-0x000000000246D000-memory.dmp

Filesize
180KB

Download
memory/568-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/568-8-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/568-10-0x0000000002440000-0x000000000246D000-memory.dmp

Filesize
180KB

Download
memory/568-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/568-11-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/568-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/568-21-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download

Analysis

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