gcleaner | 50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260

General

Target

50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe
Size

287KB
MD5

fcf3ff415044e14199d68d62de873472
SHA1

3bd17ad9fd41b3078de18e19e85df46c71eeb545
SHA256

50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260
SHA512

054a62c84682fc8eb5adec9f4290ee400a14e827ad091ed8f8d48cc62febf187f38eacc76d438bddb99a8e7c65480893ec89abc85e292cde23bc4b2690bd16a0
SSDEEP

6144:fx7GSfhDn+jh+LcOB0Vl3k30t9WkCeVpY55rfMR2efAIA:tGShz2hUwU3auxPzzpIA

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
888	3488	WerFault.exe	81
3744	3488	WerFault.exe	81
4180	3488	WerFault.exe	81
4404	3488	WerFault.exe	81
4116	3488	WerFault.exe	81
2952	3488	WerFault.exe	81
3572	3488	WerFault.exe	81
5008	3488	WerFault.exe	81

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	50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.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
2240	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 2688	3488	50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe	104
PID 3488 wrote to memory of 2688	3488	50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe	104
PID 3488 wrote to memory of 2688	3488	50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe	104
PID 2688 wrote to memory of 2240	2688	cmd.exe	108
PID 2688 wrote to memory of 2240	2688	cmd.exe	108
PID 2688 wrote to memory of 2240	2688	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe
"C:\Users\Admin\AppData\Local\Temp\50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 740
  2⤵
  - Program crash
  PID:888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 748
  2⤵
  - Program crash
  PID:3744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 748
  2⤵
  - Program crash
  PID:4180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 772
  2⤵
  - Program crash
  PID:4404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 904
  2⤵
  - Program crash
  PID:4116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 992
  2⤵
  - Program crash
  PID:2952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 1340
  2⤵
  - Program crash
  PID:3572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "50e85ac3d9bdf258c9c511b687f2ec6e1a09604cd91947633d2ee6c1d56c0260.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 1320
  2⤵
  - Program crash
  PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3488 -ip 3488
1⤵
PID:316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3488 -ip 3488
1⤵
PID:3520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3488 -ip 3488
1⤵
PID:2584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3488 -ip 3488
1⤵
PID:2460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3488 -ip 3488
1⤵
PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3488 -ip 3488
1⤵
PID:452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3488 -ip 3488
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3488 -ip 3488
1⤵
PID:4304

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\3HDB1LPD\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3488-1-0x00000000025F0000-0x00000000026F0000-memory.dmp

Filesize
1024KB

Download
memory/3488-2-0x00000000025C0000-0x00000000025ED000-memory.dmp

Filesize
180KB

Download
memory/3488-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3488-8-0x00000000025F0000-0x00000000026F0000-memory.dmp

Filesize
1024KB

Download
memory/3488-11-0x00000000025C0000-0x00000000025ED000-memory.dmp

Filesize
180KB

Download
memory/3488-10-0x0000000000400000-0x0000000002462000-memory.dmp

Filesize
32.4MB

Download
memory/3488-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3488-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3488-21-0x0000000000400000-0x0000000002462000-memory.dmp

Filesize
32.4MB

Download

Analysis

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