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
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
124	952	WerFault.exe	77
1084	952	WerFault.exe	77
3020	952	WerFault.exe	77
4604	952	WerFault.exe	77
788	952	WerFault.exe	77
1660	952	WerFault.exe	77
2944	952	WerFault.exe	77
1664	952	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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
968	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	968	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 952 wrote to memory of 1668	952	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe	93
PID 952 wrote to memory of 1668	952	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe	93
PID 952 wrote to memory of 1668	952	7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe	93
PID 1668 wrote to memory of 968	1668	cmd.exe	96
PID 1668 wrote to memory of 968	1668	cmd.exe	96
PID 1668 wrote to memory of 968	1668	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe
"C:\Users\Admin\AppData\Local\Temp\7047b08b0091eecbc20b8f213dc446650befe900b586ac51ae2b3a5ebba44f4e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 772
  2⤵
  - Program crash
  PID:124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 816
  2⤵
  - Program crash
  PID:1084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 772
  2⤵
  - Program crash
  PID:3020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 844
  2⤵
  - Program crash
  PID:4604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 952
  2⤵
  - Program crash
  PID:788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 1060
  2⤵
  - Program crash
  PID:1660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 1428
  2⤵
  - Program crash
  PID:2944
- 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:1668
- - 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:968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 1480
  2⤵
  - Program crash
  PID:1664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 952 -ip 952
1⤵
PID:388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 952 -ip 952
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 952 -ip 952
1⤵
PID:1384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 952 -ip 952
1⤵
PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 952 -ip 952
1⤵
PID:840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 952 -ip 952
1⤵
PID:1224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 952 -ip 952
1⤵
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 952 -ip 952
1⤵
PID:1488

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\N0IA4YT0\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/952-1-0x00000000025B0000-0x00000000026B0000-memory.dmp

Filesize
1024KB

Download
memory/952-2-0x00000000042E0000-0x000000000430D000-memory.dmp

Filesize
180KB

Download
memory/952-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-8-0x00000000025B0000-0x00000000026B0000-memory.dmp

Filesize
1024KB

Download
memory/952-10-0x00000000042E0000-0x000000000430D000-memory.dmp

Filesize
180KB

Download
memory/952-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-11-0x0000000000400000-0x0000000002483000-memory.dmp

Filesize
32.5MB

Download
memory/952-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-21-0x0000000000400000-0x0000000002483000-memory.dmp

Filesize
32.5MB

Download

Analysis

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