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

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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

Processes:

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

Processes:

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

Processes:

ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

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

Processes:

ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

pid process

4248 ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

pid	process
4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe

description	pid	process	target process
PID 4248 wrote to memory of 3420	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe	cmd.exe
PID 4248 wrote to memory of 3420	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe	cmd.exe
PID 4248 wrote to memory of 3420	4248	ea419643de9a10a418292f1603f86bab0942f436af5e7a8309351ce552e68d2b.exe	cmd.exe

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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kHNUuA0B7tGipup9.bat
Filesize
204B

MD5
b4f6e24b4ae0224ba0fa7a51b88dec47

SHA1
41229974aabe8034ff30e9aa4d14940ba59e890a

SHA256
1e5c24076224c5faf0d6742712366e2ab79dc287ca1fdcf9726903789181ffe7

SHA512
1e2af1fe0045cfdf6427d54a28c74863211e97a830dc695bdb1799a9cff61febb355ba70f00f47ff530fba196f1dd2eefb51ed29be2f8d92282cacc63e6c642e

Download Submit
memory/3420-131-0x0000000000000000-mapping.dmp

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

Filesize
984KB

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

Filesize
984KB

Download