gcleaner | 7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e

General

Target

7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe
Size

422KB
MD5

6033e7a30bae3bf5950789361921c795
SHA1

f3dfad41c52bad70e6afb92864dca1132963a95e
SHA256

7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e
SHA512

2a5d0c723cbd7a968881d55faaefef6138d3566d29f9191a1d26ec131a5585a89f395921e08457d21f749e6824a63e2e6ab58099639d88854260dd8659c30ce8
SSDEEP

6144:1EPt4XFZoFd1JuB90/vTRrJgDKVJaoHSF68pXzHP6B:4tpFRecrV6oqHi

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.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
4992	3556	WerFault.exe	82
936	3556	WerFault.exe	82
1676	3556	WerFault.exe	82
1664	3556	WerFault.exe	82
4484	3556	WerFault.exe	82
3928	3556	WerFault.exe	82
2296	3556	WerFault.exe	82
3636	3556	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4016	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4016	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 3548	3556	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe	109
PID 3556 wrote to memory of 3548	3556	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe	109
PID 3556 wrote to memory of 3548	3556	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe	109
PID 3548 wrote to memory of 4016	3548	cmd.exe	113
PID 3548 wrote to memory of 4016	3548	cmd.exe	113
PID 3548 wrote to memory of 4016	3548	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe
"C:\Users\Admin\AppData\Local\Temp\7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 740
  2⤵
  - Program crash
  PID:4992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 760
  2⤵
  - Program crash
  PID:936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 740
  2⤵
  - Program crash
  PID:1676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 832
  2⤵
  - Program crash
  PID:1664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 904
  2⤵
  - Program crash
  PID:4484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 1000
  2⤵
  - Program crash
  PID:3928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 1440
  2⤵
  - Program crash
  PID:2296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3548
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 1376
  2⤵
  - Program crash
  PID:3636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3556 -ip 3556
1⤵
PID:2572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3556 -ip 3556
1⤵
PID:4760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3556 -ip 3556
1⤵
PID:3160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3556 -ip 3556
1⤵
PID:2356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3556 -ip 3556
1⤵
PID:2720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3556 -ip 3556
1⤵
PID:4612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3556 -ip 3556
1⤵
PID:1588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3556 -ip 3556
1⤵
PID:4780

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\8M42AOWL\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3556-1-0x0000000002760000-0x0000000002860000-memory.dmp

Filesize
1024KB

Download
memory/3556-2-0x00000000026F0000-0x000000000271D000-memory.dmp

Filesize
180KB

Download
memory/3556-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3556-8-0x0000000002760000-0x0000000002860000-memory.dmp

Filesize
1024KB

Download
memory/3556-11-0x00000000026F0000-0x000000000271D000-memory.dmp

Filesize
180KB

Download
memory/3556-10-0x0000000000400000-0x0000000002483000-memory.dmp

Filesize
32.5MB

Download
memory/3556-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3556-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3556-21-0x0000000000400000-0x0000000002483000-memory.dmp

Filesize
32.5MB

Download

Analysis

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