gcleaner | aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87

General

Target

aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe
Size

410KB
MD5

bd36f5af13b35a77d0e15e95655620d0
SHA1

255a4ea629f8d07f4c4e35bc3750c978014fd574
SHA256

aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87
SHA512

35d2b5a2faf7a860f3e49f98518c61f3050faf4fc6070dcf5165888d1be4986b1c207f9101dc0e70ce495fd31aa06fa5a7cc4eb7972b7abc19acd92dcca96fc6
SSDEEP

6144:4hvWMy6hzp1ssFWBeXNoIdoYtP3pXTbSt8gcUWXhC/YQna8gyifT1:QvWMHzp1ZWYFt5S8ZUAC/YGjg1L

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
5004	4024	WerFault.exe	88
4632	4024	WerFault.exe	88
2800	4024	WerFault.exe	88
4476	4024	WerFault.exe	88
4256	4024	WerFault.exe	88
4036	4024	WerFault.exe	88
3124	4024	WerFault.exe	88
4016	4024	WerFault.exe	88
440	4024	WerFault.exe	88
4660	4024	WerFault.exe	88

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	aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.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
3996	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3996	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 2136	4024	aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe	114
PID 4024 wrote to memory of 2136	4024	aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe	114
PID 4024 wrote to memory of 2136	4024	aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe	114
PID 2136 wrote to memory of 3996	2136	cmd.exe	118
PID 2136 wrote to memory of 3996	2136	cmd.exe	118
PID 2136 wrote to memory of 3996	2136	cmd.exe	118

C:\Users\Admin\AppData\Local\Temp\aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe
"C:\Users\Admin\AppData\Local\Temp\aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 744
  2⤵
  - Program crash
  PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 788
  2⤵
  - Program crash
  PID:4632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 804
  2⤵
  - Program crash
  PID:2800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 744
  2⤵
  - Program crash
  PID:4476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 800
  2⤵
  - Program crash
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 980
  2⤵
  - Program crash
  PID:4036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1120
  2⤵
  - Program crash
  PID:3124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1420
  2⤵
  - Program crash
  PID:4016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "aca16cf20e9e4e74e7b270b60356ad55c82c0cdc86db4454e2023fb14285db87N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1384
  2⤵
  - Program crash
  PID:440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1472
  2⤵
  - Program crash
  PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4024 -ip 4024
1⤵
PID:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4024 -ip 4024
1⤵
PID:848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4024 -ip 4024
1⤵
PID:1492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4024 -ip 4024
1⤵
PID:3368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4024 -ip 4024
1⤵
PID:1228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4024 -ip 4024
1⤵
PID:1720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4024 -ip 4024
1⤵
PID:4128

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4236,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4072 /prefetch:8
1⤵
PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4024 -ip 4024
1⤵
PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4024 -ip 4024
1⤵
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4024 -ip 4024
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\BKKBWXOR\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4024-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/4024-2-0x0000000000700000-0x000000000072D000-memory.dmp

Filesize
180KB

Download
memory/4024-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4024-8-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/4024-10-0x0000000000700000-0x000000000072D000-memory.dmp

Filesize
180KB

Download
memory/4024-11-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/4024-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4024-21-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/4024-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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