webmonitor | 58949b34eb0f77b45800e72a3ef31e9ae61725a4fc8208f5a718918094758485

Analysis

max time kernel
95s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2023 00:05

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General

Target

HSBC_PAYMENT_COPY.pdf.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 5 IoCs

resource	yara_rule
behavioral2/memory/3752-48-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/3752-47-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/3752-49-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/3752-53-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/3752-128-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/3768-7-0x0000000004AD0000-0x0000000004AE2000-memory.dmp	CustAttr

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	HSBC_PAYMENT_COPY.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3768 set thread context of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103

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
2148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3308	powershell.exe
4040	powershell.exe
3768	HSBC_PAYMENT_COPY.pdf.exe
3936	powershell.exe
3308	powershell.exe
4040	powershell.exe
3936	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4040	powershell.exe
Token: SeDebugPrivilege	3308	powershell.exe
Token: SeDebugPrivilege	3768	HSBC_PAYMENT_COPY.pdf.exe
Token: SeDebugPrivilege	3936	powershell.exe
Token: SeShutdownPrivilege	3752	RegSvcs.exe
Token: SeCreatePagefilePrivilege	3752	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 3308	3768	HSBC_PAYMENT_COPY.pdf.exe	96
PID 3768 wrote to memory of 3308	3768	HSBC_PAYMENT_COPY.pdf.exe	96
PID 3768 wrote to memory of 3308	3768	HSBC_PAYMENT_COPY.pdf.exe	96
PID 3768 wrote to memory of 4040	3768	HSBC_PAYMENT_COPY.pdf.exe	98
PID 3768 wrote to memory of 4040	3768	HSBC_PAYMENT_COPY.pdf.exe	98
PID 3768 wrote to memory of 4040	3768	HSBC_PAYMENT_COPY.pdf.exe	98
PID 3768 wrote to memory of 2148	3768	HSBC_PAYMENT_COPY.pdf.exe	100
PID 3768 wrote to memory of 2148	3768	HSBC_PAYMENT_COPY.pdf.exe	100
PID 3768 wrote to memory of 2148	3768	HSBC_PAYMENT_COPY.pdf.exe	100
PID 3768 wrote to memory of 3936	3768	HSBC_PAYMENT_COPY.pdf.exe	104
PID 3768 wrote to memory of 3936	3768	HSBC_PAYMENT_COPY.pdf.exe	104
PID 3768 wrote to memory of 3936	3768	HSBC_PAYMENT_COPY.pdf.exe	104
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3768 wrote to memory of 3752	3768	HSBC_PAYMENT_COPY.pdf.exe	103
PID 3752 wrote to memory of 3244	3752	RegSvcs.exe	109
PID 3752 wrote to memory of 3244	3752	RegSvcs.exe	109
PID 3752 wrote to memory of 3244	3752	RegSvcs.exe	109

C:\Users\Admin\AppData\Local\Temp\HSBC_PAYMENT_COPY.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\HSBC_PAYMENT_COPY.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3768
- 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\HSBC_PAYMENT_COPY.pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3308
- 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:4040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTddvQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF04B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2148
- 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
  - Suspicious use of WriteProcessMemory
  PID:3752
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bk8X6VP9GyJ8gP29.bat" "
    3⤵
    PID:3244
- 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:3936

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
8ebc5fd97d1a8d3af43fe70ea6fc1fc7

SHA1
bdd96485a43cbc3f7a5bde43aa9fad6befdfc2d2

SHA256
81116ab3116bae97f31fa892953a2cbdbe4ff7dac00421d30fbe796f5456b835

SHA512
3c46ae6a6531e35ee721ba6368a4ee7eefd7f15b13f2c347d29113c76507cfa5facca7b60dd7c96db97323f27c4d7b38744c6238719eca29624395b7dec1003e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
82a23785eb6ec7a8fcd35df1cbe8acad

SHA1
8e5f2760718f29ec11471c92da87c1e3fdddbf89

SHA256
3bb1e5b1279939cc94b11ac37501ee845115cce75f8545e4a4a38ea4188bd878

SHA512
4b95cbf7b4a3c1799d3b01dfe293c7ddb99c68529065caa2283c619b3564d3954f598e5509c9959c0c828ed15ffacb197a6ec13cb896a3f9b58b9dd6315cc5d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_khhkynq1.xhm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\bk8X6VP9GyJ8gP29.bat

Filesize
204B

MD5
4e228b4c6e72886b294068920c3262c1

SHA1
9f23f50ab81fdf95e73ab5006977f5173cb2c6b3

SHA256
f310d2b4dee2175ec23a86d251fd85bb35a20eade9e823558ad77238b6fe43fc

SHA512
0d9f6cf787376ae921929b8941aa73e70f4f45bb8f9a4e69bc1bea11305ee133726c72a1fcb4cae9a796660386356e76f41e8498ea42ff3e756475e0d2f16481

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF04B.tmp

Filesize
1KB

MD5
5e408e0d665df026cb9c358d74bdee56

SHA1
314408214de0b8cc2b12704789f91270b6cac6ce

SHA256
ba580fa67b569c839e24875bf0300933bb74365a31e0082583e0e9e0dc3461f0

SHA512
484cfeff45c4138713dbcdae4d895f82c866a7d4cb82e35748903829c340d7b6112d97b7ab053055fb199e97421bd05619e002f8a06351cf87eba3262a6d99c9

Download Submit
memory/3308-113-0x00000000076B0000-0x00000000076CA000-memory.dmp

Filesize
104KB

Download
memory/3308-66-0x0000000006040000-0x000000000605E000-memory.dmp

Filesize
120KB

Download
memory/3308-70-0x0000000075420000-0x000000007546C000-memory.dmp

Filesize
304KB

Download
memory/3308-95-0x0000000007370000-0x000000000738A000-memory.dmp

Filesize
104KB

Download
memory/3308-94-0x00000000079B0000-0x000000000802A000-memory.dmp

Filesize
6.5MB

Download
memory/3308-92-0x0000000002990000-0x00000000029A0000-memory.dmp

Filesize
64KB

Download
memory/3308-16-0x00000000010F0000-0x0000000001126000-memory.dmp

Filesize
216KB

Download
memory/3308-17-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3308-109-0x00000000075F0000-0x0000000007686000-memory.dmp

Filesize
600KB

Download
memory/3308-19-0x00000000053B0000-0x00000000059D8000-memory.dmp

Filesize
6.2MB

Download
memory/3308-21-0x0000000002990000-0x00000000029A0000-memory.dmp

Filesize
64KB

Download
memory/3308-110-0x0000000007570000-0x0000000007581000-memory.dmp

Filesize
68KB

Download
memory/3308-22-0x0000000002990000-0x00000000029A0000-memory.dmp

Filesize
64KB

Download
memory/3308-81-0x00000000071D0000-0x00000000071EE000-memory.dmp

Filesize
120KB

Download
memory/3308-82-0x000000007EE60000-0x000000007EE70000-memory.dmp

Filesize
64KB

Download
memory/3308-112-0x00000000075B0000-0x00000000075C4000-memory.dmp

Filesize
80KB

Download
memory/3308-27-0x0000000005320000-0x0000000005386000-memory.dmp

Filesize
408KB

Download
memory/3308-67-0x0000000006090000-0x00000000060DC000-memory.dmp

Filesize
304KB

Download
memory/3308-42-0x0000000005A20000-0x0000000005D74000-memory.dmp

Filesize
3.3MB

Download
memory/3308-96-0x00000000073E0000-0x00000000073EA000-memory.dmp

Filesize
40KB

Download
memory/3308-117-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3752-128-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/3752-49-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/3752-47-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/3752-53-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/3752-48-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/3768-1-0x0000000000530000-0x000000000069C000-memory.dmp

Filesize
1.4MB

Download
memory/3768-0-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3768-7-0x0000000004AD0000-0x0000000004AE2000-memory.dmp

Filesize
72KB

Download
memory/3768-8-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3768-4-0x0000000005190000-0x000000000522C000-memory.dmp

Filesize
624KB

Download
memory/3768-52-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3768-5-0x0000000005370000-0x0000000005380000-memory.dmp

Filesize
64KB

Download
memory/3768-3-0x0000000005050000-0x00000000050E2000-memory.dmp

Filesize
584KB

Download
memory/3768-6-0x0000000005100000-0x000000000510A000-memory.dmp

Filesize
40KB

Download
memory/3768-11-0x0000000008750000-0x000000000884A000-memory.dmp

Filesize
1000KB

Download
memory/3768-10-0x0000000008620000-0x000000000874C000-memory.dmp

Filesize
1.2MB

Download
memory/3768-9-0x0000000005370000-0x0000000005380000-memory.dmp

Filesize
64KB

Download
memory/3768-2-0x0000000005560000-0x0000000005B04000-memory.dmp

Filesize
5.6MB

Download
memory/3936-56-0x00000000048B0000-0x00000000048C0000-memory.dmp

Filesize
64KB

Download
memory/3936-54-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3936-97-0x000000007F710000-0x000000007F720000-memory.dmp

Filesize
64KB

Download
memory/3936-108-0x00000000048B0000-0x00000000048C0000-memory.dmp

Filesize
64KB

Download
memory/3936-124-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3936-98-0x0000000075420000-0x000000007546C000-memory.dmp

Filesize
304KB

Download
memory/3936-55-0x00000000048B0000-0x00000000048C0000-memory.dmp

Filesize
64KB

Download
memory/4040-111-0x0000000007D80000-0x0000000007D8E000-memory.dmp

Filesize
56KB

Download
memory/4040-68-0x0000000006DF0000-0x0000000006E22000-memory.dmp

Filesize
200KB

Download
memory/4040-69-0x000000007F8D0000-0x000000007F8E0000-memory.dmp

Filesize
64KB

Download
memory/4040-114-0x0000000007E70000-0x0000000007E78000-memory.dmp

Filesize
32KB

Download
memory/4040-71-0x0000000075420000-0x000000007546C000-memory.dmp

Filesize
304KB

Download
memory/4040-26-0x0000000005A00000-0x0000000005A66000-memory.dmp

Filesize
408KB

Download
memory/4040-93-0x0000000007A10000-0x0000000007AB3000-memory.dmp

Filesize
652KB

Download
memory/4040-123-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/4040-20-0x00000000030D0000-0x00000000030E0000-memory.dmp

Filesize
64KB

Download
memory/4040-25-0x0000000005960000-0x0000000005982000-memory.dmp

Filesize
136KB

Download
memory/4040-23-0x00000000030D0000-0x00000000030E0000-memory.dmp

Filesize
64KB

Download
memory/4040-18-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download