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 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
behavioral2/memory/4072-127-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/4072-128-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral2/memory/4072-129-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

description pid process target process

PID 808 set thread context of 4072 808 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

1984 schtasks.exe

description	pid	process	target process
PID 808 set thread context of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe

pid	process
1984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exe

pid	process
808	DHL_PACKAGE_HD98232.pdf.exe
808	DHL_PACKAGE_HD98232.pdf.exe
808	DHL_PACKAGE_HD98232.pdf.exe
808	DHL_PACKAGE_HD98232.pdf.exe
808	DHL_PACKAGE_HD98232.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	808	DHL_PACKAGE_HD98232.pdf.exe
Token: SeShutdownPrivilege	4072	RegSvcs.exe
Token: SeCreatePagefilePrivilege	4072	RegSvcs.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

DHL_PACKAGE_HD98232.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 808 wrote to memory of 1984	808	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 808 wrote to memory of 1984	808	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 808 wrote to memory of 1984	808	DHL_PACKAGE_HD98232.pdf.exe	schtasks.exe
PID 808 wrote to memory of 3752	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 3752	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 3752	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 3684	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 3684	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 3684	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 808 wrote to memory of 4072	808	DHL_PACKAGE_HD98232.pdf.exe	RegSvcs.exe
PID 4072 wrote to memory of 3544	4072	RegSvcs.exe	cmd.exe
PID 4072 wrote to memory of 3544	4072	RegSvcs.exe	cmd.exe
PID 4072 wrote to memory of 3544	4072	RegSvcs.exe	cmd.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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:808
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3CEA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1984
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:3752
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:3684
- 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
  - Suspicious use of WriteProcessMemory
  PID:4072
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\urtrmpIDYNBpygso.bat" "
    3⤵
    PID:3544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3CEA.tmp

MD5
fc0903577fbe7a6237335df193c5f502

SHA1
64352d57c875e42cb03a031d0c1865206da246f2

SHA256
0595581fdf503f6b207596332ab573d9e067031d9a93a7b8dce0091446c3ce81

SHA512
fa41c7f6ce59e13f0bf4ac20a0680c121b651378e69a3b103c7eebd8619c684fa8c479a360f1015cb11923dfbacb687dce44681174fe2cce110eb67de071fae0

Download Submit
C:\Users\Admin\AppData\Local\Temp\urtrmpIDYNBpygso.bat

MD5
d2fee945246e5552686a47dd7ca70d09

SHA1
96f183aae6b1c5c5bb679bb67a6d0246720f73ca

SHA256
19b1068634d6456ac9712790cf20f8652f3489527ad1d49f352116aa695de5c4

SHA512
a91933fc9613f35719f5ca500591b6ac28d97a5e3e38362d194406c922a9d66f1cd8a3c0a3b760f06780056ac554802c356c3847369035ea87d905c0af3aa30f

Download Submit
memory/808-123-0x0000000008A20000-0x0000000008B20000-memory.dmp

Filesize
1024KB

Download
memory/808-124-0x0000000008F00000-0x0000000009004000-memory.dmp

Filesize
1.0MB

Download
memory/808-119-0x0000000005210000-0x000000000570E000-memory.dmp

Filesize
5.0MB

Download
memory/808-120-0x0000000005220000-0x0000000005221000-memory.dmp

Filesize
4KB

Download
memory/808-121-0x0000000005470000-0x0000000005471000-memory.dmp

Filesize
4KB

Download
memory/808-122-0x0000000004BD0000-0x0000000004BDF000-memory.dmp

Filesize
60KB

Download
memory/808-114-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/808-118-0x00000000052B0000-0x00000000052B1000-memory.dmp

Filesize
4KB

Download
memory/808-116-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/808-117-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/1984-125-0x0000000000000000-mapping.dmp

Download
memory/3544-130-0x0000000000000000-mapping.dmp

Download
memory/4072-127-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/4072-128-0x000000000049D8CA-mapping.dmp

Download
memory/4072-129-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads