webmonitor | 5777f5810423f9e0bc678ef97b0fef98a843d7e90e4257819850c0ef12ac8055

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/1484-67-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/1484-68-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/1484-70-0x0000000000400000-0x00000000004F3000-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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-3c00 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-3c00.exe"	RegSvcs.exe
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

description	pid	Process	procid_target
PID 1056 set thread context of 1484	1056	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
744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

pid	Process
1056	DHL_PACKAGE_HD98232.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	1056	DHL_PACKAGE_HD98232.pdf.exe
Token: SeShutdownPrivilege	1484	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid	Process
1484	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

description	pid	Process	procid_target
PID 1056 wrote to memory of 744	1056	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1056 wrote to memory of 744	1056	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1056 wrote to memory of 744	1056	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1056 wrote to memory of 744	1056	DHL_PACKAGE_HD98232.pdf.exe	29
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	DHL_PACKAGE_HD98232.pdf.exe	31
PID 1056 wrote to memory of 1484	1056	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:1056
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF354.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:744
- 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:1484

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\tmpF354.tmp

MD5
a19dbf7befb284befbc1a23e53e1649e

SHA1
19bca85b10660b6d8bfcd41c0ba23582bcd2e934

SHA256
5f3a1d740409a1f58b753ce1afad1fb1c279f5ebfebece21f61d7400c0fb49dc

SHA512
6d5ad73a95f2467a8a51c512b775e233ce03b2aeaf273efda36ce092398a741d6461033100c5fe839ee67dd94c813b2310b66131f6a5b77ee7bc518f95c5697d

Download Submit
memory/744-65-0x0000000000000000-mapping.dmp

Download
memory/1056-59-0x00000000012D0000-0x00000000012D1000-memory.dmp

Filesize
4KB

Download
memory/1056-61-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/1056-62-0x0000000000210000-0x000000000021F000-memory.dmp

Filesize
60KB

Download
memory/1056-63-0x0000000007F20000-0x0000000008020000-memory.dmp

Filesize
1024KB

Download
memory/1056-64-0x0000000009140000-0x0000000009244000-memory.dmp

Filesize
1.0MB

Download
memory/1484-67-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1484-68-0x000000000049D8CA-mapping.dmp

Download
memory/1484-69-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/1484-70-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1484-71-0x0000000002CE0000-0x0000000003CE0000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads