gcleaner | ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659

General

Target

ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe
Size

296KB
MD5

333d4cf33552d2874248704b573fab3e
SHA1

dc6a076ae98abd94f4daab61bcad310653c8e01d
SHA256

ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659
SHA512

7cd17b62442d15187ac722427c23774a97e7b152df32caa6d9cd6059b0e4c4a5c3976a75db23f7a239493a4d9b1f7e2dc07ba8801fe39426a320eb270f913204
SSDEEP

6144:3GcyoESFMk/57SFvW9ASMs6BrpKS7xKEPBXyVUF23M:3GcPESFpRP9MBrA6xKmXU3

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:

ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4308 2380 WerFault.exe ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4228 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4228 taskkill.exe

pid	pid_target	process	target process
4308	2380	WerFault.exe	ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe

pid	process
4228	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4228	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.execmd.exe

description	pid	process	target process
PID 2380 wrote to memory of 2892	2380	ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe	cmd.exe
PID 2380 wrote to memory of 2892	2380	ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe	cmd.exe
PID 2380 wrote to memory of 2892	2380	ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe	cmd.exe
PID 2892 wrote to memory of 4228	2892	cmd.exe	taskkill.exe
PID 2892 wrote to memory of 4228	2892	cmd.exe	taskkill.exe
PID 2892 wrote to memory of 4228	2892	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe
"C:\Users\Admin\AppData\Local\Temp\ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2380

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2892

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "ec25ce3c66542073ac5da4ac1ad45ea2786b1f67e4708b4cba95a00b0352e659.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 1268
2⤵
- Program crash
PID:4308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2380 -ip 2380
1⤵
PID:2304

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=3644 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:4664

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

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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/2380-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/2380-2-0x00000000021A0000-0x00000000021DC000-memory.dmp

Filesize
240KB

Download
memory/2380-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2380-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2380-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2380-19-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/2380-21-0x00000000021A0000-0x00000000021DC000-memory.dmp

Filesize
240KB

Download
memory/2380-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2380-35-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2380-36-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2380-37-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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