webmonitor | 17453e72156cb5dbd9567d52d6b83436e4f196f6f3c311c4a9b613aaba1a8b80

General

Target

8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe
Size

840KB
MD5

8a2123d4809ffdc677df37b88d58769c
SHA1

4138f2da78ccf7ed3a07d455fddb367f59568d04
SHA256

17453e72156cb5dbd9567d52d6b83436e4f196f6f3c311c4a9b613aaba1a8b80
SHA512

632870596e6f41adefce8a6589ee75b9df1ab483e619d2a2e555f6878a48007c5a38267c576ef3b056559d5348994427e46690034a59388aeee910f4fa93f671
SSDEEP

12288:juCJUOVMQGZGlScgjAFai8/6CAYUNifucTSkPjQMS/kkkkkkk:jNJUOVbocgjA58SCAi2jkPh

Score

10^/10

webmonitor backdoor infostealer persistence rat upx

Malware Config

Extracted

Family

webmonitor

C2

mafianclub.wm01.to:443

Attributes

config_key
msK8483mYp1k2OzxD1I3yoSUcNW7v1k5
private_key
WB8PgMeHa
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 5 IoCs

resource	yara_rule
behavioral1/memory/2436-13-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/2436-14-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/2436-16-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/2436-20-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/2436-19-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2436-7-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-8-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-10-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-12-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-13-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-14-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-16-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-20-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/2436-19-0x0000000000400000-0x00000000004F6000-memory.dmp	upx

Unexpected DNS network traffic destination 7 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	185.141.152.26
Destination IP	1.2.4.8
Destination IP	185.141.152.26
Destination IP	114.114.114.114
Destination IP	185.141.152.26
Destination IP	1.2.4.8
Destination IP	114.114.114.114

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-4dd3 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-4dd3.exe"	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe
2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe
2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe
Token: SeShutdownPrivilege	2436	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31
PID 2872 wrote to memory of 2436	2872	8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a2123d4809ffdc677df37b88d58769c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:2436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2436-16-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-12-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-19-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-20-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-18-0x0000000002EB0000-0x0000000003EB0000-memory.dmp

Filesize
16.0MB

Download
memory/2436-17-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2436-14-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-7-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-10-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-8-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2436-13-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2872-1-0x0000000000040000-0x0000000000118000-memory.dmp

Filesize
864KB

Download
memory/2872-9-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2872-15-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2872-6-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2872-0-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/2872-5-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2872-4-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/2872-3-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2872-2-0x00000000005B0000-0x00000000005C8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads