webmonitor | 84d9088f856e12f998ce324510f185b9e6939c8d1cb2cdb46eb9b38baf879619

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7v20210410
submitted
14-07-2021 06:59

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General

Target

BANKING_DETAILS..exe
Size

1.6MB
MD5

2d29230b77724882289e74bb9e69b95d
SHA1

4be47bbd5110c38b3312ab232570051f6335b65b
SHA256

84d9088f856e12f998ce324510f185b9e6939c8d1cb2cdb46eb9b38baf879619
SHA512

eba2141dc9f1d40cfd60efb861f01d7dcf3e45fe17858e1a336c8a618e88ba4c077a73bd9374f7102d681adc98ebb43279dd13eb0974f272eac90bcfbe2f1a70

Score

10^/10

webmonitor backdoor infostealer persistence 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/1376-79-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1376-80-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1376-89-0x0000000000400000-0x00000000004F3000-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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-3c00 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-3c00.exe"	RegSvcs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-3c00 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-3c00.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1048 set thread context of 1376	1048	BANKING_DETAILS..exe	37

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
928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
752	powershell.exe
1016	powershell.exe
1048	BANKING_DETAILS..exe
1072	powershell.exe
1016	powershell.exe
752	powershell.exe
1072	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	752	powershell.exe
Token: SeDebugPrivilege	1016	powershell.exe
Token: SeDebugPrivilege	1048	BANKING_DETAILS..exe
Token: SeDebugPrivilege	1072	powershell.exe
Token: SeShutdownPrivilege	1376	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1376	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 752	1048	BANKING_DETAILS..exe	29
PID 1048 wrote to memory of 752	1048	BANKING_DETAILS..exe	29
PID 1048 wrote to memory of 752	1048	BANKING_DETAILS..exe	29
PID 1048 wrote to memory of 752	1048	BANKING_DETAILS..exe	29
PID 1048 wrote to memory of 1016	1048	BANKING_DETAILS..exe	31
PID 1048 wrote to memory of 1016	1048	BANKING_DETAILS..exe	31
PID 1048 wrote to memory of 1016	1048	BANKING_DETAILS..exe	31
PID 1048 wrote to memory of 1016	1048	BANKING_DETAILS..exe	31
PID 1048 wrote to memory of 928	1048	BANKING_DETAILS..exe	32
PID 1048 wrote to memory of 928	1048	BANKING_DETAILS..exe	32
PID 1048 wrote to memory of 928	1048	BANKING_DETAILS..exe	32
PID 1048 wrote to memory of 928	1048	BANKING_DETAILS..exe	32
PID 1048 wrote to memory of 1072	1048	BANKING_DETAILS..exe	35
PID 1048 wrote to memory of 1072	1048	BANKING_DETAILS..exe	35
PID 1048 wrote to memory of 1072	1048	BANKING_DETAILS..exe	35
PID 1048 wrote to memory of 1072	1048	BANKING_DETAILS..exe	35
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37
PID 1048 wrote to memory of 1376	1048	BANKING_DETAILS..exe	37

C:\Users\Admin\AppData\Local\Temp\BANKING_DETAILS..exe
"C:\Users\Admin\AppData\Local\Temp\BANKING_DETAILS..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048
- 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\BANKING_DETAILS..exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:752
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pfIFOKgKlLO.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pfIFOKgKlLO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC82F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:928
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pfIFOKgKlLO.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1072
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1376

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/752-73-0x0000000004800000-0x0000000004801000-memory.dmp

Filesize
4KB

Download
memory/752-71-0x0000000001D80000-0x0000000001D81000-memory.dmp

Filesize
4KB

Download
memory/752-83-0x00000000047C0000-0x00000000047C1000-memory.dmp

Filesize
4KB

Download
memory/752-84-0x00000000047C2000-0x00000000047C3000-memory.dmp

Filesize
4KB

Download
memory/752-94-0x0000000004790000-0x0000000004791000-memory.dmp

Filesize
4KB

Download
memory/752-67-0x0000000075721000-0x0000000075723000-memory.dmp

Filesize
8KB

Download
memory/1016-86-0x0000000004852000-0x0000000004853000-memory.dmp

Filesize
4KB

Download
memory/1016-85-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/1016-91-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download
memory/1048-65-0x0000000005AB0000-0x0000000005BC3000-memory.dmp

Filesize
1.1MB

Download
memory/1048-60-0x0000000001290000-0x0000000001291000-memory.dmp

Filesize
4KB

Download
memory/1048-64-0x00000000057D0000-0x0000000005928000-memory.dmp

Filesize
1.3MB

Download
memory/1048-63-0x0000000000280000-0x0000000000290000-memory.dmp

Filesize
64KB

Download
memory/1048-62-0x0000000004F40000-0x0000000004F41000-memory.dmp

Filesize
4KB

Download
memory/1072-105-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1072-113-0x00000000063C0000-0x00000000063C1000-memory.dmp

Filesize
4KB

Download
memory/1072-135-0x0000000006440000-0x0000000006441000-memory.dmp

Filesize
4KB

Download
memory/1072-136-0x0000000006450000-0x0000000006451000-memory.dmp

Filesize
4KB

Download
memory/1072-88-0x0000000001F10000-0x0000000002B5A000-memory.dmp

Filesize
12.3MB

Download
memory/1072-99-0x00000000061C0000-0x00000000061C1000-memory.dmp

Filesize
4KB

Download
memory/1072-120-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/1072-106-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/1072-104-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/1376-89-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1376-79-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1376-146-0x0000000002C00000-0x0000000003C00000-memory.dmp

Filesize
16.0MB

Download