gcleaner | 92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb

General

Target

92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe
Size

329KB
MD5

46dd726e42653e27848d9a4a2fc69962
SHA1

9202665b212fe7dd6faa9fae08b51479fad8e689
SHA256

92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb
SHA512

d408c102daa487dad863f6951d8d36e2a00a64bbacb447bbd0c55759327bce72f17dd665479c47f65cc4e3e200c24e1acc738db3b32d3b6b56201e40001cbfb3
SSDEEP

6144:mLLnTFb+p6U9OOcPqSntFpUUxVVAo7sZEFm9/AZEsGXvkE:IbTFa6UkO0LtFpUUTxsZX94WV

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.64.56

185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5112 set thread context of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1732	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 5112 wrote to memory of 2876	5112	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	90
PID 2876 wrote to memory of 2172	2876	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	99
PID 2876 wrote to memory of 2172	2876	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	99
PID 2876 wrote to memory of 2172	2876	92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe	99
PID 2172 wrote to memory of 1732	2172	cmd.exe	101
PID 2172 wrote to memory of 1732	2172	cmd.exe	101
PID 2172 wrote to memory of 1732	2172	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe
"C:\Users\Admin\AppData\Local\Temp\92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Users\Admin\AppData\Local\Temp\92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe
  "C:\Users\Admin\AppData\Local\Temp\92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im "92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2172
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im "92c512db0f7da8bf28505fb0e9e6580954091dd0758da372167ac4419086a8eb.exe" /f
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1732

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 --mojo-platform-channel-handle=1032 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:4516

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8ZO46T3J\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2876-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2876-4-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2876-5-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2876-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2876-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2876-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2876-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2876-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/5112-1-0x0000000001BD0000-0x0000000001CD0000-memory.dmp

Filesize
1024KB

Download
memory/5112-2-0x0000000003800000-0x000000000383C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing