webmonitor | fae42a1d8dbd274ade612e53f14f4f48213f7397e413b32fb499ecf4179409b0

Analysis

max time kernel
153s
max time network
14s
platform
windows7_x64
resource
win7v20210408
submitted
11-05-2021 06:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

INVOICE20210511.exe
Size

1.3MB
MD5

63f0d02851b4513b062581c91b62132b
SHA1

18a60c599d7e5daba6d6982ae33ca14d4e4067df
SHA256

fae42a1d8dbd274ade612e53f14f4f48213f7397e413b32fb499ecf4179409b0
SHA512

6407a553565fecf34f2f6fb4afb755ee262be43f19469e67e529fb1fc2c6559eba7a6867f9d059d35f39d7c86ae0fa84e8b10c3ce4e07050ea2a2dafd11e862e

Score

10^/10

webmonitor backdoor infostealer rat

Malware Config

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
behavioral1/memory/1600-81-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1600-82-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1600-90-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1652 set thread context of 1600	1652	INVOICE20210511.exe	38

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
276	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1652	INVOICE20210511.exe
1652	INVOICE20210511.exe
1652	INVOICE20210511.exe
1840	powershell.exe
544	powershell.exe
852	powershell.exe
544	powershell.exe
1840	powershell.exe
852	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	INVOICE20210511.exe
Token: SeDebugPrivilege	1840	powershell.exe
Token: SeDebugPrivilege	852	powershell.exe
Token: SeDebugPrivilege	544	powershell.exe
Token: SeShutdownPrivilege	1600	INVOICE20210511.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 544	1652	INVOICE20210511.exe	29
PID 1652 wrote to memory of 544	1652	INVOICE20210511.exe	29
PID 1652 wrote to memory of 544	1652	INVOICE20210511.exe	29
PID 1652 wrote to memory of 544	1652	INVOICE20210511.exe	29
PID 1652 wrote to memory of 1840	1652	INVOICE20210511.exe	31
PID 1652 wrote to memory of 1840	1652	INVOICE20210511.exe	31
PID 1652 wrote to memory of 1840	1652	INVOICE20210511.exe	31
PID 1652 wrote to memory of 1840	1652	INVOICE20210511.exe	31
PID 1652 wrote to memory of 276	1652	INVOICE20210511.exe	33
PID 1652 wrote to memory of 276	1652	INVOICE20210511.exe	33
PID 1652 wrote to memory of 276	1652	INVOICE20210511.exe	33
PID 1652 wrote to memory of 276	1652	INVOICE20210511.exe	33
PID 1652 wrote to memory of 852	1652	INVOICE20210511.exe	35
PID 1652 wrote to memory of 852	1652	INVOICE20210511.exe	35
PID 1652 wrote to memory of 852	1652	INVOICE20210511.exe	35
PID 1652 wrote to memory of 852	1652	INVOICE20210511.exe	35
PID 1652 wrote to memory of 1080	1652	INVOICE20210511.exe	37
PID 1652 wrote to memory of 1080	1652	INVOICE20210511.exe	37
PID 1652 wrote to memory of 1080	1652	INVOICE20210511.exe	37
PID 1652 wrote to memory of 1080	1652	INVOICE20210511.exe	37
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38
PID 1652 wrote to memory of 1600	1652	INVOICE20210511.exe	38

C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:544
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nbBnuvGQkNaCaX.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1840
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nbBnuvGQkNaCaX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp648D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:276
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nbBnuvGQkNaCaX.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:852
- C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe"
  2⤵
  PID:1080
- C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1600

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/544-77-0x0000000004900000-0x0000000004901000-memory.dmp

Filesize
4KB

Download
memory/544-85-0x00000000048C2000-0x00000000048C3000-memory.dmp

Filesize
4KB

Download
memory/544-83-0x00000000048C0000-0x00000000048C1000-memory.dmp

Filesize
4KB

Download
memory/544-91-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/544-94-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/544-67-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download
memory/544-72-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

Filesize
4KB

Download
memory/852-87-0x0000000004990000-0x0000000004991000-memory.dmp

Filesize
4KB

Download
memory/852-88-0x0000000004992000-0x0000000004993000-memory.dmp

Filesize
4KB

Download
memory/1600-90-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1600-97-0x00000000031E0000-0x00000000041E0000-memory.dmp

Filesize
16.0MB

Download
memory/1600-81-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1652-60-0x00000000012A0000-0x00000000012A1000-memory.dmp

Filesize
4KB

Download
memory/1652-65-0x00000000096E0000-0x0000000009821000-memory.dmp

Filesize
1.3MB

Download
memory/1652-62-0x0000000005150000-0x0000000005151000-memory.dmp

Filesize
4KB

Download
memory/1652-63-0x00000000003D0000-0x00000000003D4000-memory.dmp

Filesize
16KB

Download
memory/1652-64-0x0000000005CF0000-0x0000000005E36000-memory.dmp

Filesize
1.3MB

Download
memory/1840-84-0x0000000004840000-0x0000000004841000-memory.dmp

Filesize
4KB

Download
memory/1840-137-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1840-86-0x0000000004842000-0x0000000004843000-memory.dmp

Filesize
4KB

Download
memory/1840-100-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/1840-114-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/1840-107-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/1840-136-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1840-106-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1840-121-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/1840-105-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download