webmonitor | ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b

Analysis

max time kernel
109s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2022 02:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe
Size

365KB
MD5

af76619743662c5e9ccfaa1f940b8354
SHA1

bf8e2c7b4a84ca177d7ae9c4ba6155d2dbc74b38
SHA256

ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b
SHA512

be9eaaadc9cf5509e301c9908e555b2ac0dbf984aede52545a78b98ce459f222050e1d0fc01aa4afdca275d921f79c972b325de55a9d91285c1298e6b5291373

Score

10^/10

webmonitor backdoor infostealer rat upx

Malware Config

Extracted

Family

webmonitor

primeservers1.wm01.to:443

Attributes

config_key
AP8PrfNym8htAX0Za6LL12tdOuH5BSPp
private_key
U6yRoBXHU
url_path
/recv5.php

Signatures

RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
backdoor rat infostealer webmonitor

WebMonitor payload 2 IoCs

resource	yara_rule
behavioral2/memory/4248-130-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral2/memory/4248-132-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4248-130-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral2/memory/4248-132-0x0000000000400000-0x00000000004F6000-memory.dmp	upx

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-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

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

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe
Token: SeCreatePagefilePrivilege	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 3420	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe	82
PID 4248 wrote to memory of 3420	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe	82
PID 4248 wrote to memory of 3420	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe	82

C:\Users\Admin\AppData\Local\Temp\ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe
"C:\Users\Admin\AppData\Local\Temp\ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kHNUuA0B7tGipup9.bat" "
  2⤵
  PID:3420

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\kHNUuA0B7tGipup9.bat

Filesize
204B

MD5
b4f6e24b4ae0224ba0fa7a51b88dec47

SHA1
41229974aabe8034ff30e9aa4d14940ba59e890a

SHA256
1e5c24076224c5faf0d6742712366e2ab79dc287ca1fdcf9726903789181ffe7

SHA512
1e2af1fe0045cfdf6427d54a28c74863211e97a830dc695bdb1799a9cff61febb355ba70f00f47ff530fba196f1dd2eefb51ed29be2f8d92282cacc63e6c642e

Download Submit
memory/4248-130-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/4248-132-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download