webmonitor | 58949b34eb0f77b45800e72a3ef31e9ae61725a4fc8208f5a718918094758485

Analysis

max time kernel
148s
max time network
186s
platform
windows7_x64
resource
win7v20210410
submitted
27-07-2021 15:11

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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 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/560-77-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/560-78-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/560-87-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/1072-62-0x0000000000320000-0x000000000032B000-memory.dmp	CustAttr

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1072 set thread context of 560	1072	HSBC_PAYMENT_COPY.pdf.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
572	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1156	powershell.exe
1108	powershell.exe
756	powershell.exe
1156	powershell.exe
1108	powershell.exe
756	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	HSBC_PAYMENT_COPY.pdf.exe
Token: SeDebugPrivilege	1156	powershell.exe
Token: SeDebugPrivilege	1108	powershell.exe
Token: SeDebugPrivilege	756	powershell.exe
Token: SeShutdownPrivilege	560	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 1156	1072	HSBC_PAYMENT_COPY.pdf.exe	29
PID 1072 wrote to memory of 1156	1072	HSBC_PAYMENT_COPY.pdf.exe	29
PID 1072 wrote to memory of 1156	1072	HSBC_PAYMENT_COPY.pdf.exe	29
PID 1072 wrote to memory of 1156	1072	HSBC_PAYMENT_COPY.pdf.exe	29
PID 1072 wrote to memory of 1108	1072	HSBC_PAYMENT_COPY.pdf.exe	31
PID 1072 wrote to memory of 1108	1072	HSBC_PAYMENT_COPY.pdf.exe	31
PID 1072 wrote to memory of 1108	1072	HSBC_PAYMENT_COPY.pdf.exe	31
PID 1072 wrote to memory of 1108	1072	HSBC_PAYMENT_COPY.pdf.exe	31
PID 1072 wrote to memory of 572	1072	HSBC_PAYMENT_COPY.pdf.exe	32
PID 1072 wrote to memory of 572	1072	HSBC_PAYMENT_COPY.pdf.exe	32
PID 1072 wrote to memory of 572	1072	HSBC_PAYMENT_COPY.pdf.exe	32
PID 1072 wrote to memory of 572	1072	HSBC_PAYMENT_COPY.pdf.exe	32
PID 1072 wrote to memory of 756	1072	HSBC_PAYMENT_COPY.pdf.exe	35
PID 1072 wrote to memory of 756	1072	HSBC_PAYMENT_COPY.pdf.exe	35
PID 1072 wrote to memory of 756	1072	HSBC_PAYMENT_COPY.pdf.exe	35
PID 1072 wrote to memory of 756	1072	HSBC_PAYMENT_COPY.pdf.exe	35
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37
PID 1072 wrote to memory of 560	1072	HSBC_PAYMENT_COPY.pdf.exe	37

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072
- 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:1156
- 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:1108
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTddvQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp78B9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:572
- 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:756
- 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:560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

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

memory/560-87-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/560-145-0x0000000002EB0000-0x0000000003EB0000-memory.dmp

Filesize
16.0MB

Download
memory/560-77-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/756-90-0x00000000026D0000-0x00000000026D1000-memory.dmp

Filesize
4KB

Download
memory/756-88-0x0000000004A60000-0x0000000004A61000-memory.dmp

Filesize
4KB

Download
memory/756-89-0x0000000004A62000-0x0000000004A63000-memory.dmp

Filesize
4KB

Download
memory/1072-59-0x0000000001160000-0x0000000001161000-memory.dmp

Filesize
4KB

Download
memory/1072-64-0x0000000008480000-0x0000000008575000-memory.dmp

Filesize
980KB

Download
memory/1072-63-0x0000000008350000-0x0000000008475000-memory.dmp

Filesize
1.1MB

Download
memory/1072-62-0x0000000000320000-0x000000000032B000-memory.dmp

Filesize
44KB

Download
memory/1072-61-0x0000000004D70000-0x0000000004D71000-memory.dmp

Filesize
4KB

Download
memory/1108-85-0x0000000004982000-0x0000000004983000-memory.dmp

Filesize
4KB

Download
memory/1108-73-0x00000000049C0000-0x00000000049C1000-memory.dmp

Filesize
4KB

Download
memory/1108-72-0x00000000021A0000-0x00000000021A1000-memory.dmp

Filesize
4KB

Download
memory/1108-84-0x0000000004980000-0x0000000004981000-memory.dmp

Filesize
4KB

Download
memory/1156-93-0x00000000026D0000-0x00000000026D1000-memory.dmp

Filesize
4KB

Download
memory/1156-135-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1156-134-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1156-125-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1156-118-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/1156-111-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/1156-104-0x0000000005760000-0x0000000005761000-memory.dmp

Filesize
4KB

Download
memory/1156-103-0x00000000056B0000-0x00000000056B1000-memory.dmp

Filesize
4KB

Download
memory/1156-98-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/1156-86-0x0000000002030000-0x0000000002C7A000-memory.dmp

Filesize
12.3MB

Download
memory/1156-66-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download