gcleaner | 81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4

General

Target

81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
Size

317KB
MD5

300ac88cb620c7f146cd5f8304512f8e
SHA1

443e0dc509a77c933fa066fc3d490800416c035c
SHA256

81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4
SHA512

8dd90d5a7161cdae6414b8eda964228711d65d3fd45abbf3226ffeed8bfcfaa74b63d0281f8970606d0770e7c5dac66a90f0f838185a6cdcef262b1148ce9911
SSDEEP

6144:dxTINo/Suhyu3XRAgLhXVfR5ODBFKB11IOet7LWT:nIOSuhyuaehX6F81ya

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

Processes:

81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
5100	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
3956	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
1716	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
464	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
1012	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
2560	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
2516	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
1308	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
2632	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
2268	1448	WerFault.exe	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3792 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3792 taskkill.exe

pid	process
3792	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3792	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.execmd.exe

description	pid	process	target process
PID 1448 wrote to memory of 4828	1448	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe	cmd.exe
PID 1448 wrote to memory of 4828	1448	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe	cmd.exe
PID 1448 wrote to memory of 4828	1448	81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe	cmd.exe
PID 4828 wrote to memory of 3792	4828	cmd.exe	taskkill.exe
PID 4828 wrote to memory of 3792	4828	cmd.exe	taskkill.exe
PID 4828 wrote to memory of 3792	4828	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe
"C:\Users\Admin\AppData\Local\Temp\81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 444
2⤵
- Program crash
PID:5100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 532
2⤵
- Program crash
PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 748
2⤵
- Program crash
PID:1716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 788
2⤵
- Program crash
PID:464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 788
2⤵
- Program crash
PID:1012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 772
2⤵
- Program crash
PID:2560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 916
2⤵
- Program crash
PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1012
2⤵
- Program crash
PID:1308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1580
2⤵
- Program crash
PID:2632

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4828

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "81e3dea24b09a6ac3a24620402dc6bbcbf23d01faa45e05443ce4c47a05e60c4.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1592
2⤵
- Program crash
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1448 -ip 1448
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1448 -ip 1448
1⤵
PID:4788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1448 -ip 1448
1⤵
PID:4072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1448 -ip 1448
1⤵
PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1448 -ip 1448
1⤵
PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1448 -ip 1448
1⤵
PID:3792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1448 -ip 1448
1⤵
PID:876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1448 -ip 1448
1⤵
PID:1344

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=1344 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
1⤵
PID:4128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1448 -ip 1448
1⤵
PID:1092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1448 -ip 1448
1⤵
PID:840

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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/1448-4-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1448-3-0x0000000000400000-0x0000000002CAD000-memory.dmp

Filesize
40.7MB

Download
memory/1448-1-0x0000000002F90000-0x0000000003090000-memory.dmp

Filesize
1024KB

Download
memory/1448-5-0x0000000000400000-0x0000000002CAD000-memory.dmp

Filesize
40.7MB

Download
memory/1448-7-0x0000000002F90000-0x0000000003090000-memory.dmp

Filesize
1024KB

Download
memory/1448-11-0x0000000002F20000-0x0000000002F5C000-memory.dmp

Filesize
240KB

Download
memory/1448-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1448-16-0x0000000000400000-0x0000000002CAD000-memory.dmp

Filesize
40.7MB

Download
memory/1448-2-0x0000000002F20000-0x0000000002F5C000-memory.dmp

Filesize
240KB

Download
memory/1448-20-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1448-38-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1448-37-0x0000000000400000-0x0000000002CAD000-memory.dmp

Filesize
40.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads