webmonitor | 0ed8f93b98f9cfff89559df9e0a8d360cab3dde1abfa2992216b4a98c5ca1253

Analysis

max time kernel
141s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 05:43

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General

Target

08f2609e7f7daf0f78032f773a68b72c.exe
Size

1.4MB
MD5

08f2609e7f7daf0f78032f773a68b72c
SHA1

f00e4c61cce15ee5f43c032d8d595aba65fbdc86
SHA256

0ed8f93b98f9cfff89559df9e0a8d360cab3dde1abfa2992216b4a98c5ca1253
SHA512

8c1ba503d2956ad0c60b11547908b81e601a3bfb2c75ae73c03718bd883ff94451b0697f915049614470d59388d161c02893ad90b48466f77fc154a20215da74
SSDEEP

24576:abOd/OsBgo0q4wMf/5vUQgxZGCc+b8QHsDpXgbkyh1Sl+inzQSjzVrV9ZtXCU8jt:abOsoHMXpUnxZGClb8QGryPSEY79/CUw

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 9 IoCs

resource	yara_rule
behavioral1/memory/636-35-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-39-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-45-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-48-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-50-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-32-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-55-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-57-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/636-58-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/1976-3-0x0000000000540000-0x0000000000552000-memory.dmp	CustAttr

Unexpected DNS network traffic destination 8 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	185.141.152.26
Destination IP	185.141.152.26
Destination IP	114.114.114.114
Destination IP	185.141.152.26
Destination IP	1.2.4.8
Destination IP	114.114.114.114
Destination IP	185.141.152.26
Destination IP	1.2.4.8

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1976 set thread context of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37

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

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/Job

T1053

pid	Process
2680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
476	powershell.exe
2672	powershell.exe
2604	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	476	powershell.exe
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeShutdownPrivilege	636	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2672	1976	08f2609e7f7daf0f78032f773a68b72c.exe	31
PID 1976 wrote to memory of 2672	1976	08f2609e7f7daf0f78032f773a68b72c.exe	31
PID 1976 wrote to memory of 2672	1976	08f2609e7f7daf0f78032f773a68b72c.exe	31
PID 1976 wrote to memory of 2672	1976	08f2609e7f7daf0f78032f773a68b72c.exe	31
PID 1976 wrote to memory of 2604	1976	08f2609e7f7daf0f78032f773a68b72c.exe	32
PID 1976 wrote to memory of 2604	1976	08f2609e7f7daf0f78032f773a68b72c.exe	32
PID 1976 wrote to memory of 2604	1976	08f2609e7f7daf0f78032f773a68b72c.exe	32
PID 1976 wrote to memory of 2604	1976	08f2609e7f7daf0f78032f773a68b72c.exe	32
PID 1976 wrote to memory of 2680	1976	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 1976 wrote to memory of 2680	1976	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 1976 wrote to memory of 2680	1976	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 1976 wrote to memory of 2680	1976	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 1976 wrote to memory of 476	1976	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 1976 wrote to memory of 476	1976	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 1976 wrote to memory of 476	1976	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 1976 wrote to memory of 476	1976	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37
PID 1976 wrote to memory of 636	1976	08f2609e7f7daf0f78032f773a68b72c.exe	37

C:\Users\Admin\AppData\Local\Temp\08f2609e7f7daf0f78032f773a68b72c.exe
"C:\Users\Admin\AppData\Local\Temp\08f2609e7f7daf0f78032f773a68b72c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1976
- 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\08f2609e7f7daf0f78032f773a68b72c.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WTddvQz.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2604
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTddvQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2680
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WTddvQz.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:476
- 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
  PID:636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
349dca512e63d7eba00de1fee6082882

SHA1
08ca7030585e2e52c77978ce582c7cf5b30b4507

SHA256
5da99c650a040382897e4962ecb08ae07fdb6a72ace9ff76aba5d55af9d5a228

SHA512
b2c77babd00efd049ca75cddd2541fa14667cf818397b795e8ee366ecdbd6c801daeb0f09d649d7fba5673503bced1471629d65d834a7c319e400da95555893f

Download Submit
memory/476-51-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/476-47-0x00000000023D0000-0x0000000002410000-memory.dmp

Filesize
256KB

Download
memory/476-33-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/636-35-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-39-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-58-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-57-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-55-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-32-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-24-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-50-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-48-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-29-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-45-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/636-41-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1976-46-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-2-0x0000000004E30000-0x0000000004E70000-memory.dmp

Filesize
256KB

Download
memory/1976-6-0x0000000008550000-0x000000000867C000-memory.dmp

Filesize
1.2MB

Download
memory/1976-1-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-3-0x0000000000540000-0x0000000000552000-memory.dmp

Filesize
72KB

Download
memory/1976-7-0x0000000008780000-0x000000000887A000-memory.dmp

Filesize
1000KB

Download
memory/1976-4-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-0-0x0000000000330000-0x000000000049C000-memory.dmp

Filesize
1.4MB

Download
memory/1976-5-0x0000000004E30000-0x0000000004E70000-memory.dmp

Filesize
256KB

Download
memory/2604-30-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2604-27-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/2604-53-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/2604-49-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2604-34-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2672-38-0x0000000002620000-0x0000000002660000-memory.dmp

Filesize
256KB

Download
memory/2672-26-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-52-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-28-0x000000006F150000-0x000000006F6FB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-37-0x0000000002620000-0x0000000002660000-memory.dmp

Filesize
256KB

Download