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/1912-68-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1912-69-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1912-71-0x0000000000400000-0x00000000004F3000-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	procid_target
PID 1828 set thread context of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31

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
296	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

pid	Process
1828	DHL_PACKAGE_HD98232.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	1828	DHL_PACKAGE_HD98232.pdf.exe
Token: SeShutdownPrivilege	1912	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid	Process
1912	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

description	pid	Process	procid_target
PID 1828 wrote to memory of 296	1828	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1828 wrote to memory of 296	1828	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1828 wrote to memory of 296	1828	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1828 wrote to memory of 296	1828	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1828 wrote to memory of 1912	1828	DHL_PACKAGE_HD98232.pdf.exe	31

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9F3C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:296
- 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:1912

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\tmp9F3C.tmp

MD5
29047727459169c1a38a2deda91e10bc

SHA1
da41255f155b7d477269a6720cfeebadbb836cef

SHA256
2f54ab283a834f10fa48c169e8a6065d179bebdc49941ad2ddb3a1530c5047d0

SHA512
c3c6a57ee2d00bdf411ae841f447ab312af486e5178e03b8ff84986a272794765d05d01322e63243a119f89e6440e09ebd6b2d626165c089b5ce8ade104eb471

Download Submit
memory/296-66-0x0000000000000000-mapping.dmp

Download
memory/1828-60-0x0000000000E50000-0x0000000000E51000-memory.dmp

Filesize
4KB

Download
memory/1828-62-0x0000000004D00000-0x0000000004D01000-memory.dmp

Filesize
4KB

Download
memory/1828-63-0x00000000003E0000-0x00000000003EF000-memory.dmp

Filesize
60KB

Download
memory/1828-64-0x00000000084A0000-0x00000000085A0000-memory.dmp

Filesize
1024KB

Download
memory/1828-65-0x0000000005CC0000-0x0000000005DC4000-memory.dmp

Filesize
1.0MB

Download
memory/1912-68-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1912-69-0x000000000049D8CA-mapping.dmp

Download
memory/1912-70-0x0000000075511000-0x0000000075513000-memory.dmp

Filesize
8KB

Download
memory/1912-71-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1912-72-0x0000000002B70000-0x0000000003B70000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads