webmonitor | 8bf574fdef05c875c39d97b0e8adcb166b9c34679e0d2e20c91f4aff176d75b6

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7v20210410
submitted
06-08-2021 01:18

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General

Target

HSBC_PAYMENT_COPY.pdf.exe
Size

1.4MB
MD5

08f2609e7f7daf0f78032f773a68b72c
SHA1

f00e4c61cce15ee5f43c032d8d595aba65fbdc86
SHA256

0ed8f93b98f9cfff89559df9e0a8d360cab3dde1abfa2992216b4a98c5ca1253
SHA512

8c1ba503d2956ad0c60b11547908b81e601a3bfb2c75ae73c03718bd883ff94451b0697f915049614470d59388d161c02893ad90b48466f77fc154a20215da74

Score

10^/10

webmonitor backdoor infostealer persistence rat suricata

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/1580-87-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1580-88-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1580-93-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
suricata

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/2004-63-0x0000000000340000-0x000000000034B000-memory.dmp	CustAttr

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 2004 set thread context of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38

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
268	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2004	HSBC_PAYMENT_COPY.pdf.exe
2004	HSBC_PAYMENT_COPY.pdf.exe
1960	powershell.exe
1684	powershell.exe
1840	powershell.exe
2004	HSBC_PAYMENT_COPY.pdf.exe
1840	powershell.exe
1684	powershell.exe
1960	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	HSBC_PAYMENT_COPY.pdf.exe
Token: SeDebugPrivilege	1684	powershell.exe
Token: SeDebugPrivilege	1840	powershell.exe
Token: SeDebugPrivilege	1960	powershell.exe
Token: SeShutdownPrivilege	1580	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1580	RegSvcs.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1960	2004	HSBC_PAYMENT_COPY.pdf.exe	29
PID 2004 wrote to memory of 1960	2004	HSBC_PAYMENT_COPY.pdf.exe	29
PID 2004 wrote to memory of 1960	2004	HSBC_PAYMENT_COPY.pdf.exe	29
PID 2004 wrote to memory of 1960	2004	HSBC_PAYMENT_COPY.pdf.exe	29
PID 2004 wrote to memory of 1840	2004	HSBC_PAYMENT_COPY.pdf.exe	31
PID 2004 wrote to memory of 1840	2004	HSBC_PAYMENT_COPY.pdf.exe	31
PID 2004 wrote to memory of 1840	2004	HSBC_PAYMENT_COPY.pdf.exe	31
PID 2004 wrote to memory of 1840	2004	HSBC_PAYMENT_COPY.pdf.exe	31
PID 2004 wrote to memory of 268	2004	HSBC_PAYMENT_COPY.pdf.exe	32
PID 2004 wrote to memory of 268	2004	HSBC_PAYMENT_COPY.pdf.exe	32
PID 2004 wrote to memory of 268	2004	HSBC_PAYMENT_COPY.pdf.exe	32
PID 2004 wrote to memory of 268	2004	HSBC_PAYMENT_COPY.pdf.exe	32
PID 2004 wrote to memory of 1684	2004	HSBC_PAYMENT_COPY.pdf.exe	35
PID 2004 wrote to memory of 1684	2004	HSBC_PAYMENT_COPY.pdf.exe	35
PID 2004 wrote to memory of 1684	2004	HSBC_PAYMENT_COPY.pdf.exe	35
PID 2004 wrote to memory of 1684	2004	HSBC_PAYMENT_COPY.pdf.exe	35
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 928	2004	HSBC_PAYMENT_COPY.pdf.exe	36
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38
PID 2004 wrote to memory of 1580	2004	HSBC_PAYMENT_COPY.pdf.exe	38

C:\Users\Admin\AppData\Local\Temp\HSBC_PAYMENT_COPY.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\HSBC_PAYMENT_COPY.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- 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:1960
- 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:1840
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTddvQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC7E1.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:268
- 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:1684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:928
- 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:1580

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/1580-87-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1580-93-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1580-146-0x0000000002DF0000-0x0000000003DF0000-memory.dmp

Filesize
16.0MB

Download
memory/1684-86-0x0000000004A22000-0x0000000004A23000-memory.dmp

Filesize
4KB

Download
memory/1684-90-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1684-94-0x00000000048D0000-0x00000000048D1000-memory.dmp

Filesize
4KB

Download
memory/1684-84-0x0000000004A20000-0x0000000004A21000-memory.dmp

Filesize
4KB

Download
memory/1840-73-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

Filesize
4KB

Download
memory/1840-74-0x0000000004950000-0x0000000004951000-memory.dmp

Filesize
4KB

Download
memory/1840-105-0x00000000061B0000-0x00000000061B1000-memory.dmp

Filesize
4KB

Download
memory/1840-104-0x0000000005730000-0x0000000005731000-memory.dmp

Filesize
4KB

Download
memory/1840-99-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

Download
memory/1840-119-0x0000000006240000-0x0000000006241000-memory.dmp

Filesize
4KB

Download
memory/1840-81-0x0000000004912000-0x0000000004913000-memory.dmp

Filesize
4KB

Download
memory/1840-134-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/1840-135-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download
memory/1840-78-0x0000000004910000-0x0000000004911000-memory.dmp

Filesize
4KB

Download
memory/1840-112-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/1840-138-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1960-82-0x0000000002270000-0x0000000002EBA000-memory.dmp

Filesize
12.3MB

Download
memory/1960-67-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download
memory/2004-60-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/2004-65-0x00000000084A0000-0x0000000008595000-memory.dmp

Filesize
980KB

Download
memory/2004-64-0x0000000008370000-0x0000000008495000-memory.dmp

Filesize
1.1MB

Download
memory/2004-63-0x0000000000340000-0x000000000034B000-memory.dmp

Filesize
44KB

Download
memory/2004-62-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download