gcleaner | 8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9

General

Target

8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe
Size

423KB
MD5

de7d567f87c17bc71ade2f90b04f914d
SHA1

4edc12643053aa5e0d579d73656a585a17bc5b12
SHA256

8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9
SHA512

5912302cc251d891b5799391b3eabf05c7c5f0c1eaffcff80d93883eb505382d15258df24d69895744943be2307f0342952b7d3066bca8432ed6889574b1db05
SSDEEP

6144:JFIR7fDS8WsU2QtQNjIfTRpHY5z69I/Rtx7JA/XJT:za7fDS8vUZQ2fTL4U2RtG

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

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe

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
4720	4548	WerFault.exe	82
2076	4548	WerFault.exe	82
2080	4548	WerFault.exe	82
2968	4548	WerFault.exe	82
792	4548	WerFault.exe	82
2152	4548	WerFault.exe	82
3144	4548	WerFault.exe	82
4936	4548	WerFault.exe	82
4816	4548	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	8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.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
4392	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 4564	4548	8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe	110
PID 4548 wrote to memory of 4564	4548	8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe	110
PID 4548 wrote to memory of 4564	4548	8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe	110
PID 4564 wrote to memory of 4392	4564	cmd.exe	114
PID 4564 wrote to memory of 4392	4564	cmd.exe	114
PID 4564 wrote to memory of 4392	4564	cmd.exe	114

C:\Users\Admin\AppData\Local\Temp\8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe
"C:\Users\Admin\AppData\Local\Temp\8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 748
  2⤵
  - Program crash
  PID:4720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 740
  2⤵
  - Program crash
  PID:2076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 740
  2⤵
  - Program crash
  PID:2080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 832
  2⤵
  - Program crash
  PID:2968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 904
  2⤵
  - Program crash
  PID:792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 976
  2⤵
  - Program crash
  PID:2152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 1012
  2⤵
  - Program crash
  PID:3144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 1412
  2⤵
  - Program crash
  PID:4936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8205099f4ade018aedaacd35fe8af71236f4d1d6793da63235a6c04530ecd3e9.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 1360
  2⤵
  - Program crash
  PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4548 -ip 4548
1⤵
PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4548 -ip 4548
1⤵
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4548 -ip 4548
1⤵
PID:2556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4548 -ip 4548
1⤵
PID:3740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4548 -ip 4548
1⤵
PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4548 -ip 4548
1⤵
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4548 -ip 4548
1⤵
PID:2756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4548 -ip 4548
1⤵
PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4548 -ip 4548
1⤵
PID:4368

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\YYI0S376\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4548-1-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/4548-2-0x0000000002210000-0x000000000223D000-memory.dmp

Filesize
180KB

Download
memory/4548-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4548-8-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/4548-9-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download
memory/4548-11-0x0000000002210000-0x000000000223D000-memory.dmp

Filesize
180KB

Download
memory/4548-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4548-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4548-21-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download

Analysis

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