webmonitor | 6095dd10965d4e081e87c366736e0305b7d42f84dbdb10471bcedacfe145f7a5

General

Target

DHL_PACKAGE_HD98232.pdf.exe
Size

1.3MB
MD5

0e72b26fbd7f27c2753c02193337c280
SHA1

fc000dd71eeace99e08c54e6a8ec6d578c80ed20
SHA256

6095dd10965d4e081e87c366736e0305b7d42f84dbdb10471bcedacfe145f7a5
SHA512

0f222aef8358f3a712871316eb9aa1c24efc36c90396701c4cbae558a3e52bab6c6acedd2a21555e914204fab47f30b586a6322a81fa925042c05eda4ec34950

Score

10^/10

webmonitor backdoor infostealer persistence 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

Processes:

resource	yara_rule
behavioral1/memory/1116-68-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1116-69-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1116-71-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-ced9 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-ced9.exe"	RegSvcs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-ced9 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-ced9.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

description pid process target process

PID 1944 set thread context of 1116 1944 DHL_PACKAGE_HD98232.pdf.exe RegSvcs.exe
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

Processes:

schtasks.exe

pid process

1072 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1944 DHL_PACKAGE_HD98232.pdf.exe
Token: SeShutdownPrivilege 1116 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

1116 RegSvcs.exe

description	pid	process	target process
PID 1944 set thread context of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe

pid	process
1072	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1944	DHL_PACKAGE_HD98232.pdf.exe
Token: SeShutdownPrivilege	1116	RegSvcs.exe

pid	process
1116	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

description	pid	process	target process
PID 1944 wrote to memory of 1072	1944	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 1944 wrote to memory of 1072	1944	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 1944 wrote to memory of 1072	1944	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 1944 wrote to memory of 1072	1944	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 1944 wrote to memory of 1116	1944	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\DHL_PACKAGE_HD98232.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_PACKAGE_HD98232.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E17.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1072
- 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:1116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5E17.tmp

MD5
29047727459169c1a38a2deda91e10bc

SHA1
da41255f155b7d477269a6720cfeebadbb836cef

SHA256
2f54ab283a834f10fa48c169e8a6065d179bebdc49941ad2ddb3a1530c5047d0

SHA512
c3c6a57ee2d00bdf411ae841f447ab312af486e5178e03b8ff84986a272794765d05d01322e63243a119f89e6440e09ebd6b2d626165c089b5ce8ade104eb471

Download Submit
memory/1072-66-0x0000000000000000-mapping.dmp

Download
memory/1116-68-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1116-69-0x000000000049D8CA-mapping.dmp

Download
memory/1116-70-0x0000000076691000-0x0000000076693000-memory.dmp

Filesize
8KB

Download
memory/1116-71-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1116-72-0x0000000002D60000-0x0000000003D60000-memory.dmp

Filesize
16.0MB

Download
memory/1944-60-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1944-62-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

Filesize
4KB

Download
memory/1944-63-0x0000000000320000-0x000000000032F000-memory.dmp

Filesize
60KB

Download
memory/1944-64-0x0000000008150000-0x0000000008250000-memory.dmp

Filesize
1024KB

Download
memory/1944-65-0x0000000009250000-0x0000000009354000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads