webmonitor | 7696274f6270b793b2dffc5b283a104be475d79b440500478780e24f6436fd5a

Analysis

max time kernel
150s
max time network
187s
platform
windows7_x64
resource
win7v20210408
submitted
21-07-2021 15:03

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General

Target

FILE_2932NH_9923.exe
Size

1.9MB
MD5

1372b32848411ad39f19abe9d74b052f
SHA1

b47548451a323c3ae62b25ee6b65f1fe76837639
SHA256

7696274f6270b793b2dffc5b283a104be475d79b440500478780e24f6436fd5a
SHA512

ed15a4855f25b2ff6a00c2e19c4def71aac1d27945d249dbb26718107dbe48a4c3176be1e07cd1f5de29b7d3aeffb2530fb89c70c0f1e9ba77dc0c9bd3396942

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/1160-87-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1160-88-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1160-93-0x0000000000400000-0x00000000004F3000-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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-ced9 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-ced9.exe"	RegSvcs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-ced9 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-ced9.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 1160	2020	FILE_2932NH_9923.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
852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1476	powershell.exe
1896	powershell.exe
760	powershell.exe
2020	FILE_2932NH_9923.exe
1896	powershell.exe
1476	powershell.exe
760	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1476	powershell.exe
Token: SeDebugPrivilege	1896	powershell.exe
Token: SeDebugPrivilege	760	powershell.exe
Token: SeDebugPrivilege	2020	FILE_2932NH_9923.exe
Token: SeShutdownPrivilege	1160	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1160	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 1476	2020	FILE_2932NH_9923.exe	29
PID 2020 wrote to memory of 1476	2020	FILE_2932NH_9923.exe	29
PID 2020 wrote to memory of 1476	2020	FILE_2932NH_9923.exe	29
PID 2020 wrote to memory of 1476	2020	FILE_2932NH_9923.exe	29
PID 2020 wrote to memory of 1896	2020	FILE_2932NH_9923.exe	31
PID 2020 wrote to memory of 1896	2020	FILE_2932NH_9923.exe	31
PID 2020 wrote to memory of 1896	2020	FILE_2932NH_9923.exe	31
PID 2020 wrote to memory of 1896	2020	FILE_2932NH_9923.exe	31
PID 2020 wrote to memory of 852	2020	FILE_2932NH_9923.exe	33
PID 2020 wrote to memory of 852	2020	FILE_2932NH_9923.exe	33
PID 2020 wrote to memory of 852	2020	FILE_2932NH_9923.exe	33
PID 2020 wrote to memory of 852	2020	FILE_2932NH_9923.exe	33
PID 2020 wrote to memory of 760	2020	FILE_2932NH_9923.exe	35
PID 2020 wrote to memory of 760	2020	FILE_2932NH_9923.exe	35
PID 2020 wrote to memory of 760	2020	FILE_2932NH_9923.exe	35
PID 2020 wrote to memory of 760	2020	FILE_2932NH_9923.exe	35
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37
PID 2020 wrote to memory of 1160	2020	FILE_2932NH_9923.exe	37

C:\Users\Admin\AppData\Local\Temp\FILE_2932NH_9923.exe
"C:\Users\Admin\AppData\Local\Temp\FILE_2932NH_9923.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020
- 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\FILE_2932NH_9923.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1476
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DqkJYq.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1896
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DqkJYq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:852
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DqkJYq.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:760
- 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:1160

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/760-113-0x0000000006340000-0x0000000006341000-memory.dmp

Filesize
4KB

Download
memory/760-137-0x00000000063C0000-0x00000000063C1000-memory.dmp

Filesize
4KB

Download
memory/760-138-0x00000000063D0000-0x00000000063D1000-memory.dmp

Filesize
4KB

Download
memory/760-94-0x00000000027D0000-0x00000000027D1000-memory.dmp

Filesize
4KB

Download
memory/760-99-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/760-104-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/760-105-0x00000000057B0000-0x00000000057B1000-memory.dmp

Filesize
4KB

Download
memory/760-106-0x00000000062A0000-0x00000000062A1000-memory.dmp

Filesize
4KB

Download
memory/760-121-0x00000000056D0000-0x00000000056D1000-memory.dmp

Filesize
4KB

Download
memory/760-85-0x0000000004960000-0x0000000004961000-memory.dmp

Filesize
4KB

Download
memory/760-86-0x0000000004962000-0x0000000004963000-memory.dmp

Filesize
4KB

Download
memory/1160-87-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1160-93-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1160-157-0x0000000002CF0000-0x0000000003CF0000-memory.dmp

Filesize
16.0MB

Download
memory/1476-83-0x0000000004872000-0x0000000004873000-memory.dmp

Filesize
4KB

Download
memory/1476-66-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download
memory/1476-74-0x00000000048B0000-0x00000000048B1000-memory.dmp

Filesize
4KB

Download
memory/1476-81-0x0000000004870000-0x0000000004871000-memory.dmp

Filesize
4KB

Download
memory/1476-72-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/1896-82-0x0000000004900000-0x0000000004901000-memory.dmp

Filesize
4KB

Download
memory/1896-84-0x0000000004902000-0x0000000004903000-memory.dmp

Filesize
4KB

Download
memory/1896-90-0x0000000001190000-0x0000000001191000-memory.dmp

Filesize
4KB

Download
memory/2020-59-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/2020-64-0x00000000084C0000-0x00000000085B5000-memory.dmp

Filesize
980KB

Download
memory/2020-63-0x00000000081E0000-0x0000000008317000-memory.dmp

Filesize
1.2MB

Download
memory/2020-62-0x00000000008D0000-0x00000000008EB000-memory.dmp

Filesize
108KB

Download
memory/2020-61-0x00000000048E0000-0x00000000048E1000-memory.dmp

Filesize
4KB

Download