gcleaner | 5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a

General

Target
5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe
Size 274KB
Sample240531-tklwlsde4z
SHA256 5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a
MD5 e6afb008d2bfe15fc36ac13f265d9f51
SHA1 f5dfa57d00cbd0f28cf1e72b53bec6013a328307
SHA512 f2e129945aa3d8d83f108beca8750294b167ef185eccf90f6ec8da66d92a2c6c1fce76c610829adcc9cbc86ea9d7ea219ff55cd1d1725e13368f15579eb51128
SSDEEP 3072:5JTYR7i5nxPirONLMd3H1kxnu3Y+cOqr5wDs9Ts99/IYE:5qBenxwULxxns/+aE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
185.172.128.69

Attributes

url_path
/advdlc.php

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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.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
2548	2444	WerFault.exe	89
2340	2444	WerFault.exe	89
4660	2444	WerFault.exe	89
4556	2444	WerFault.exe	89
4512	2444	WerFault.exe	89
4100	2444	WerFault.exe	89
3708	2444	WerFault.exe	89
3352	2444	WerFault.exe	89

Kills process with taskkill 1 IoCs

evasion

pid	Process
5088	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5088	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 3956	2444	5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe	123
PID 2444 wrote to memory of 3956	2444	5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe	123
PID 2444 wrote to memory of 3956	2444	5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe	123
PID 3956 wrote to memory of 5088	3956	cmd.exe	127
PID 3956 wrote to memory of 5088	3956	cmd.exe	127
PID 3956 wrote to memory of 5088	3956	cmd.exe	127

C:\Users\Admin\AppData\Local\Temp\5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe
"C:\Users\Admin\AppData\Local\Temp\5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 744
  2⤵
  - Program crash
  PID:2548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 764
  2⤵
  - Program crash
  PID:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 784
  2⤵
  - Program crash
  PID:4660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 816
  2⤵
  - Program crash
  PID:4556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 904
  2⤵
  - Program crash
  PID:4512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 980
  2⤵
  - Program crash
  PID:4100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 1340
  2⤵
  - Program crash
  PID:3708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5fafcace6b7ac33f55931be4d1eca951c0d7b8a75c3d1350f09aa9c1c1461d8a.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 1364
  2⤵
  - Program crash
  PID:3352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2444 -ip 2444
1⤵
PID:4088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2444 -ip 2444
1⤵
PID:2844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2444 -ip 2444
1⤵
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2444 -ip 2444
1⤵
PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2444 -ip 2444
1⤵
PID:384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2444 -ip 2444
1⤵
PID:3940

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 --no-appcompat-clear --field-trial-handle=3124,i,15721081447618313297,6839074028983272033,262144 --variations-seed-version --mojo-platform-channel-handle=4660 /prefetch:8
1⤵
PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2444 -ip 2444
1⤵
PID:3144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2444 -ip 2444
1⤵
PID:3088

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VVOFDIUO\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/2444-1-0x0000000001F20000-0x0000000002020000-memory.dmp

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memory/2444-3-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2444-2-0x0000000001D30000-0x0000000001D5D000-memory.dmp

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memory/2444-8-0x0000000000400000-0x0000000001BBF000-memory.dmp

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memory/2444-11-0x0000000001F20000-0x0000000002020000-memory.dmp

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memory/2444-15-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2444-22-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2444-21-0x0000000000400000-0x0000000001BBF000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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