webmonitor | f85ef46438b8f65621b8ffeee02aaa1dd95b00e04a370f12977f52051749102d

Analysis

max time kernel
154s
max time network
153s
platform
windows7_x64
resource
win7-en-20211208
submitted
02-02-2022 01:44

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General

Target

NEW PURCHASE ORDER.exe
Size

982KB
MD5

bcb77b64ef4a369f8b381aff4c6f1c57
SHA1

4624958cd8a724ad01868331d9a78a64fb0cdcb0
SHA256

142cf7f01ff7c99da5e16196325e3fa3a6d867ff0e50696d727c92696ba97ccf
SHA512

9249aea1d4a0d467c544271297ee7b88851c586c9afab522f845a071d7551bbefdfc49b516d13bb5d31277ab194026ecd5852e0d751b0527e7543a2d9607405a

Score

10^/10

webmonitor backdoor infostealer persistence rat

Malware Config

Extracted

Family

webmonitor

niiarmah.wm01.to:443

Attributes

config_key
4EcDHH7aWbl50LayUnuRlJWUXiKQWk0O
private_key
yvkn5wM8E
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 1 IoCs

resource	yara_rule
behavioral1/memory/1544-57-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-0740 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-0740.exe"	NEW PURCHASE ORDER.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-0740 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-0740.exe"	NEW PURCHASE ORDER.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 528 set thread context of 1544	528	NEW PURCHASE ORDER.exe	27

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
528	NEW PURCHASE ORDER.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1544	NEW PURCHASE ORDER.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1544	NEW PURCHASE ORDER.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 1544	528	NEW PURCHASE ORDER.exe	27
PID 528 wrote to memory of 1544	528	NEW PURCHASE ORDER.exe	27
PID 528 wrote to memory of 1544	528	NEW PURCHASE ORDER.exe	27
PID 528 wrote to memory of 1544	528	NEW PURCHASE ORDER.exe	27
PID 528 wrote to memory of 1544	528	NEW PURCHASE ORDER.exe	27

C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:528
- C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe
  "C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/528-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/528-55-0x00000000001C0000-0x00000000001C2000-memory.dmp

Filesize
8KB

Download
memory/1544-57-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

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