webmonitor | 9e6563c2c5e8a869bfdbf4ff1336bf2abcd238695d87f79a01b308216acc9cb5

Analysis

max time kernel
138s
max time network
120s
platform
windows10_x64
resource
win10-en-20211104
submitted
06-12-2021 11:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

PREVIOUS CONVERSATION.pdf.exe
Size

2.2MB
MD5

28241aafe5b6018c984e310c33e9e48b
SHA1

d126c0cf51a98d9f3bd38efa6e61d4091104c624
SHA256

9e6563c2c5e8a869bfdbf4ff1336bf2abcd238695d87f79a01b308216acc9cb5
SHA512

730ae328d0cc82be717d24130073d8a3d0ec8e3b118e88dcb2b13071499c2efa03cf98905be68b2bc041a3245d792a113403272f67052963f3c4baeae15d0c98

Score

10^/10

webmonitor backdoor infostealer 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 3 IoCs

resource	yara_rule
behavioral2/memory/2000-138-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/2000-139-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral2/memory/2000-143-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4296 set thread context of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

pid	Process
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
4296	PREVIOUS CONVERSATION.pdf.exe
1012	powershell.exe
4296	PREVIOUS CONVERSATION.pdf.exe
1012	powershell.exe
1012	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	PREVIOUS CONVERSATION.pdf.exe
Token: SeDebugPrivilege	1012	powershell.exe
Token: SeShutdownPrivilege	2000	RegSvcs.exe
Token: SeCreatePagefilePrivilege	2000	RegSvcs.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 1012	4296	PREVIOUS CONVERSATION.pdf.exe	71
PID 4296 wrote to memory of 1012	4296	PREVIOUS CONVERSATION.pdf.exe	71
PID 4296 wrote to memory of 1012	4296	PREVIOUS CONVERSATION.pdf.exe	71
PID 4296 wrote to memory of 416	4296	PREVIOUS CONVERSATION.pdf.exe	73
PID 4296 wrote to memory of 416	4296	PREVIOUS CONVERSATION.pdf.exe	73
PID 4296 wrote to memory of 416	4296	PREVIOUS CONVERSATION.pdf.exe	73
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 4296 wrote to memory of 2000	4296	PREVIOUS CONVERSATION.pdf.exe	75
PID 2000 wrote to memory of 2704	2000	RegSvcs.exe	77
PID 2000 wrote to memory of 2704	2000	RegSvcs.exe	77
PID 2000 wrote to memory of 2704	2000	RegSvcs.exe	77

C:\Users\Admin\AppData\Local\Temp\PREVIOUS CONVERSATION.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PREVIOUS CONVERSATION.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FeqVzOoxhxw.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1012
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FeqVzOoxhxw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp89C8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HRqCnM8UvH7AWTFZ.bat" "
    3⤵
    PID:2704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1012-137-0x0000000007E60000-0x0000000007E61000-memory.dmp

Filesize
4KB

Download
memory/1012-147-0x0000000001110000-0x0000000001111000-memory.dmp

Filesize
4KB

Download
memory/1012-237-0x0000000004B03000-0x0000000004B04000-memory.dmp

Filesize
4KB

Download
memory/1012-236-0x000000007F5E0000-0x000000007F5E1000-memory.dmp

Filesize
4KB

Download
memory/1012-167-0x0000000009830000-0x0000000009831000-memory.dmp

Filesize
4KB

Download
memory/1012-166-0x0000000009660000-0x0000000009661000-memory.dmp

Filesize
4KB

Download
memory/1012-161-0x00000000094F0000-0x00000000094F1000-memory.dmp

Filesize
4KB

Download
memory/1012-130-0x0000000001110000-0x0000000001111000-memory.dmp

Filesize
4KB

Download
memory/1012-140-0x0000000007EE0000-0x0000000007EE1000-memory.dmp

Filesize
4KB

Download
memory/1012-132-0x0000000004A50000-0x0000000004A51000-memory.dmp

Filesize
4KB

Download
memory/1012-133-0x0000000007500000-0x0000000007501000-memory.dmp

Filesize
4KB

Download
memory/1012-154-0x0000000009530000-0x0000000009563000-memory.dmp

Filesize
204KB

Download
memory/1012-135-0x00000000074B0000-0x00000000074B1000-memory.dmp

Filesize
4KB

Download
memory/1012-136-0x0000000007D80000-0x0000000007D81000-memory.dmp

Filesize
4KB

Download
memory/1012-146-0x0000000008690000-0x0000000008691000-memory.dmp

Filesize
4KB

Download
memory/1012-145-0x0000000008640000-0x0000000008641000-memory.dmp

Filesize
4KB

Download
memory/1012-144-0x0000000007D50000-0x0000000007D51000-memory.dmp

Filesize
4KB

Download
memory/1012-131-0x0000000001110000-0x0000000001111000-memory.dmp

Filesize
4KB

Download
memory/1012-142-0x0000000004B02000-0x0000000004B03000-memory.dmp

Filesize
4KB

Download
memory/1012-141-0x0000000004B00000-0x0000000004B01000-memory.dmp

Filesize
4KB

Download
memory/2000-143-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2000-138-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/4296-121-0x00000000057B0000-0x00000000057B1000-memory.dmp

Filesize
4KB

Download
memory/4296-123-0x00000000058F0000-0x00000000058F8000-memory.dmp

Filesize
32KB

Download
memory/4296-118-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

Filesize
4KB

Download
memory/4296-125-0x0000000005710000-0x0000000005C0E000-memory.dmp

Filesize
5.0MB

Download
memory/4296-126-0x0000000006530000-0x0000000006531000-memory.dmp

Filesize
4KB

Download
memory/4296-127-0x00000000065D0000-0x00000000067EC000-memory.dmp

Filesize
2.1MB

Download
memory/4296-124-0x0000000005BC0000-0x0000000005BC1000-memory.dmp

Filesize
4KB

Download
memory/4296-122-0x0000000005760000-0x0000000005761000-memory.dmp

Filesize
4KB

Download
memory/4296-120-0x0000000005C10000-0x0000000005C11000-memory.dmp

Filesize
4KB

Download