webmonitor | 0ed8f93b98f9cfff89559df9e0a8d360cab3dde1abfa2992216b4a98c5ca1253

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 00:44

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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 11 IoCs

resource	yara_rule
behavioral1/memory/2444-27-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-30-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-40-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2640-39-0x0000000002E00000-0x0000000002E40000-memory.dmp	family_webmonitor
behavioral1/memory/2444-45-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-48-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-28-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-53-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-54-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-56-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2444-57-0x0000000003320000-0x0000000004320000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/860-3-0x0000000000890000-0x00000000008A2000-memory.dmp	CustAttr

Unexpected DNS network traffic destination 5 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	1.2.4.8
Destination IP	185.141.152.26
Destination IP	1.2.4.8
Destination IP	185.141.152.26

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 860 set thread context of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38

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
2660	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2616	powershell.exe
768	powershell.exe
2640	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeShutdownPrivilege	2444	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 2640	860	08f2609e7f7daf0f78032f773a68b72c.exe	30
PID 860 wrote to memory of 2640	860	08f2609e7f7daf0f78032f773a68b72c.exe	30
PID 860 wrote to memory of 2640	860	08f2609e7f7daf0f78032f773a68b72c.exe	30
PID 860 wrote to memory of 2640	860	08f2609e7f7daf0f78032f773a68b72c.exe	30
PID 860 wrote to memory of 2616	860	08f2609e7f7daf0f78032f773a68b72c.exe	34
PID 860 wrote to memory of 2616	860	08f2609e7f7daf0f78032f773a68b72c.exe	34
PID 860 wrote to memory of 2616	860	08f2609e7f7daf0f78032f773a68b72c.exe	34
PID 860 wrote to memory of 2616	860	08f2609e7f7daf0f78032f773a68b72c.exe	34
PID 860 wrote to memory of 2660	860	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 860 wrote to memory of 2660	860	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 860 wrote to memory of 2660	860	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 860 wrote to memory of 2660	860	08f2609e7f7daf0f78032f773a68b72c.exe	33
PID 860 wrote to memory of 768	860	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 860 wrote to memory of 768	860	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 860 wrote to memory of 768	860	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 860 wrote to memory of 768	860	08f2609e7f7daf0f78032f773a68b72c.exe	36
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38
PID 860 wrote to memory of 2444	860	08f2609e7f7daf0f78032f773a68b72c.exe	38

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:860
- 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:2640
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTddvQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCAFD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2660
- 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:2616
- 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:768
- 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:2444

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\Local\Temp\tmpCAFD.tmp

Filesize
1KB

MD5
26be12fc6efcef4c92e3dee0b95568bd

SHA1
15c1c6c9c1d027d37fc31f4c3c8ff188b42de684

SHA256
2156f85d13049d8b72feb432ae7f8d8a5d1fd9cde18d1cb13c74794f9afcf839

SHA512
8d4c44ed681e53f517b1ed436ec547e7abb29d752b8d6619a095255b6854e40746bca513d84a8bcdaa3f2ffd39332dc2ea7a22172ec7240c0055d9658e8076bc

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

Filesize
7KB

MD5
8c03d4d87ff77cdbf83d209e3f3a330b

SHA1
881634543264a00dd13bec59dabae32ac9cff165

SHA256
89fa99cb5adca906015a2d52d72db14c71d5e4cd37c32861663df9c34849e064

SHA512
b93271c383ca9734cf41d3ade53cde990f5aa7ac9a2e0f08a532de6c0541bd9b4ff55d1fc876879f07e20b5d565fab4512e4455cb667855d740659252eb679aa

Download Submit
memory/768-50-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/768-44-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/768-46-0x0000000002820000-0x0000000002860000-memory.dmp

Filesize
256KB

Download
memory/860-41-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/860-6-0x00000000083F0000-0x000000000851C000-memory.dmp

Filesize
1.2MB

Download
memory/860-7-0x0000000008620000-0x000000000871A000-memory.dmp

Filesize
1000KB

Download
memory/860-5-0x0000000004C60000-0x0000000004CA0000-memory.dmp

Filesize
256KB

Download
memory/860-4-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/860-1-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/860-0-0x0000000000D60000-0x0000000000ECC000-memory.dmp

Filesize
1.4MB

Download
memory/860-2-0x0000000004C60000-0x0000000004CA0000-memory.dmp

Filesize
256KB

Download
memory/860-3-0x0000000000890000-0x00000000008A2000-memory.dmp

Filesize
72KB

Download
memory/2444-27-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-48-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-53-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-57-0x0000000003320000-0x0000000004320000-memory.dmp

Filesize
16.0MB

Download
memory/2444-40-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-56-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-54-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-45-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-55-0x0000000003320000-0x0000000004320000-memory.dmp

Filesize
16.0MB

Download
memory/2444-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2444-30-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-28-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-25-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2444-26-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2616-36-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/2616-51-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/2616-42-0x0000000002AA0000-0x0000000002AE0000-memory.dmp

Filesize
256KB

Download
memory/2616-34-0x0000000002AA0000-0x0000000002AE0000-memory.dmp

Filesize
256KB

Download
memory/2616-29-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-32-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-49-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-47-0x0000000002E00000-0x0000000002E40000-memory.dmp

Filesize
256KB

Download
memory/2640-43-0x0000000002E00000-0x0000000002E40000-memory.dmp

Filesize
256KB

Download
memory/2640-39-0x0000000002E00000-0x0000000002E40000-memory.dmp

Filesize
256KB

Download
memory/2640-38-0x000000006F2C0000-0x000000006F86B000-memory.dmp

Filesize
5.7MB

Download