webmonitor | 477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473

General

Target

477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
Size

1.6MB
MD5

0c51f2d2491935aa18675a7a0d91a9ff
SHA1

aedc0da5d909d665bfe1e4de023a163fb24c8847
SHA256

477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473
SHA512

85cc9f0e5bd848ca5f871c645d613a53de98245a558e111662f2c6870f7e0a36c4aa47bbb12c3ee001c083f14ada6f98dc3210161be3cde99c1a98f670c9aedc

Score

10^/10

webmonitor backdoor infostealer rat upx

Malware Config

Extracted

Family

webmonitor

C2

olaviqs.wm01.to:443

Attributes

config_key
7GfpikpHRvmQe3t81PSe02B3qwlPiFPx
private_key
JklcEIRIO
url_path
/recv5.php

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 4 IoCs

resource	yara_rule
behavioral2/memory/3380-138-0x0000000000400000-0x00000000004F2000-memory.dmp	family_webmonitor
behavioral2/memory/3380-140-0x0000000000400000-0x00000000004F2000-memory.dmp	family_webmonitor
behavioral2/memory/3380-141-0x0000000000400000-0x00000000004F2000-memory.dmp	family_webmonitor
behavioral2/memory/3380-143-0x0000000000400000-0x00000000004F2000-memory.dmp	family_webmonitor

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3380-131-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3380-136-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3380-137-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3380-138-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3380-140-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3380-141-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3380-143-0x0000000000400000-0x00000000004F2000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3260 set thread context of 3380	3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	80

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3380	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3380	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
Token: SeCreatePagefilePrivilege	3380	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3260 wrote to memory of 3380	3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	80
PID 3260 wrote to memory of 3380	3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	80
PID 3260 wrote to memory of 3380	3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	80
PID 3260 wrote to memory of 3380	3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	80
PID 3260 wrote to memory of 3380	3260	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	80
PID 3380 wrote to memory of 2668	3380	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	83
PID 3380 wrote to memory of 2668	3380	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	83
PID 3380 wrote to memory of 2668	3380	477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe	83

C:\Users\Admin\AppData\Local\Temp\477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
"C:\Users\Admin\AppData\Local\Temp\477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3260
- C:\Users\Admin\AppData\Local\Temp\477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe
  "C:\Users\Admin\AppData\Local\Temp\477890c8323400fc28599a57f1472618f4f4d9c2f9e5a9f65f2614951f089473.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3380
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gxliTzfVJmBX12ml.bat" "
    3⤵
    PID:2668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gxliTzfVJmBX12ml.bat

Filesize
204B

MD5
f21427329e436df70040def4febec1f4

SHA1
feb7867a08cf019ae10a8776fda76ad26fb0d8c0

SHA256
e1ed216d9e08d211264535ff3c10d7e15426f25e633d588fc2e6a71c674fb677

SHA512
f1fb1033dcc6187278ce809ad9addd3a934d8916c70bcfbaf461d0ad798845299a06acca2251dda857bff547cc94e0261abbb178a21fac723b45d10764701c55

Download Submit
memory/3260-139-0x0000000000B40000-0x0000000000B9B000-memory.dmp

Filesize
364KB

Download
memory/3380-131-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3380-136-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3380-137-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3380-138-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3380-140-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3380-141-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3380-143-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download

Analysis

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