webmonitor | e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2

Analysis

max time kernel
155s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
02-05-2022 18:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe
Size

5.9MB
MD5

390631e07e9b222c486f6c09fb4d007e
SHA1

bd4ce4a8eeef7effad15dcdf704e9ad8f8a4de1f
SHA256

e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2
SHA512

bfb68feca7437efd05b3d1d6f7549573e63ac2e99d854186b90aaafec6ae070e56e06533cb7a708279bb0b3883c341ae7a9fa52a12198831836ff30826ea8cde

Score

10^/10

webmonitor backdoor infostealer persistence rat suricata upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\IcXbKe4p02dHqi5S\\N6cTL1nZ7yVU.exe\",explorer.exe"	regasm.exe

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 2 IoCs

resource	yara_rule
behavioral2/memory/4516-173-0x0000000000400000-0x00000000005F7000-memory.dmp	family_webmonitor
behavioral2/memory/4516-174-0x0000000000400000-0x00000000005F7000-memory.dmp	family_webmonitor

suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
suricata

Executes dropped EXE 1 IoCs

pid	Process
4632	Machinery64.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4516-170-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral2/memory/4516-171-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral2/memory/4516-172-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral2/memory/4516-173-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral2/memory/4516-174-0x0000000000400000-0x00000000005F7000-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-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe

Unexpected DNS network traffic destination 19 IoCs

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

description	ioc
Destination IP	114.114.114.114
Destination IP	185.243.215.214
Destination IP	114.114.114.114
Destination IP	1.2.4.8
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	185.243.215.214
Destination IP	114.114.114.114
Destination IP	1.2.4.8
Destination IP	185.243.215.214
Destination IP	185.243.215.214
Destination IP	1.2.4.8
Destination IP	1.2.4.8
Destination IP	1.2.4.8
Destination IP	185.243.215.214
Destination IP	114.114.114.114
Destination IP	1.2.4.8
Destination IP	185.243.215.214
Destination IP	185.243.215.214

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2064 set thread context of 4840	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	83
PID 4840 set thread context of 4516	4840	regasm.exe	91

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1672	4632	WerFault.exe	82

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4840	regasm.exe
4840	regasm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	regasm.exe
Token: SeDebugPrivilege	4516	AppLaunch.exe
Token: SeShutdownPrivilege	4516	AppLaunch.exe
Token: SeCreatePagefilePrivilege	4516	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 4632	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	82
PID 2064 wrote to memory of 4632	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	82
PID 2064 wrote to memory of 4840	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	83
PID 2064 wrote to memory of 4840	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	83
PID 2064 wrote to memory of 4840	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	83
PID 2064 wrote to memory of 4840	2064	e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe	83
PID 4840 wrote to memory of 4516	4840	regasm.exe	91
PID 4840 wrote to memory of 4516	4840	regasm.exe	91
PID 4840 wrote to memory of 4516	4840	regasm.exe	91
PID 4840 wrote to memory of 4516	4840	regasm.exe	91
PID 4840 wrote to memory of 4516	4840	regasm.exe	91
PID 4840 wrote to memory of 4516	4840	regasm.exe	91
PID 4840 wrote to memory of 4516	4840	regasm.exe	91

C:\Users\Admin\AppData\Local\Temp\e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe
"C:\Users\Admin\AppData\Local\Temp\e8bde67605e6f54c71e889036fb6fd1d301438aa2f93447eab9f3de8780dbcb2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\Machinery64.exe
  "C:\Users\Admin\AppData\Local\Temp\Machinery64.exe"
  2⤵
  - Executes dropped EXE
  PID:4632
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 4632 -s 664
    3⤵
    - Program crash
    PID:1672
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4840
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4516

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 4632 -ip 4632
1⤵
PID:4996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Machinery64.exe

Filesize
4.5MB

MD5
bbfa4c1e5d3d0620c79d3cd29be4426c

SHA1
39d2a27c90b7c1229741e97334772d694ade6d51

SHA256
9bb6c7fd4c79297c4eb41faf7f9a05bf056b1016d23386835057b800d27d297f

SHA512
eea9a51b86251ae44175698341184b824a1397f7b7702f958dc807eac48955188e6c65b887eada1d3f83bf338f4d0db22e25a4bc75b3f921e756a51a75a2177b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Machinery64.exe

Filesize
4.5MB

MD5
bbfa4c1e5d3d0620c79d3cd29be4426c

SHA1
39d2a27c90b7c1229741e97334772d694ade6d51

SHA256
9bb6c7fd4c79297c4eb41faf7f9a05bf056b1016d23386835057b800d27d297f

SHA512
eea9a51b86251ae44175698341184b824a1397f7b7702f958dc807eac48955188e6c65b887eada1d3f83bf338f4d0db22e25a4bc75b3f921e756a51a75a2177b

Download Submit
memory/2064-153-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-142-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-136-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-134-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-138-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-133-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-140-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-158-0x0000000000D67000-0x0000000000D6A000-memory.dmp

Filesize
12KB

Download
memory/2064-141-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-143-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-144-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-145-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-146-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-148-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-149-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-150-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-151-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-152-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-132-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-165-0x00000000029D0000-0x00000000029D8000-memory.dmp

Filesize
32KB

Download
memory/2064-137-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-135-0x0000000000D2B000-0x0000000000D2F000-memory.dmp

Filesize
16KB

Download
memory/2064-139-0x0000000000D36000-0x0000000000D3B000-memory.dmp

Filesize
20KB

Download
memory/2064-156-0x0000000000D67000-0x0000000000D6A000-memory.dmp

Filesize
12KB

Download
memory/2064-161-0x0000000000D67000-0x0000000000D6A000-memory.dmp

Filesize
12KB

Download
memory/2064-163-0x0000000000D67000-0x0000000000D6A000-memory.dmp

Filesize
12KB

Download
memory/2064-159-0x0000000000D67000-0x0000000000D6A000-memory.dmp

Filesize
12KB

Download
memory/2064-160-0x0000000000D67000-0x0000000000D6A000-memory.dmp

Filesize
12KB

Download
memory/4516-172-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/4516-175-0x0000000002AA0000-0x0000000003AA0000-memory.dmp

Filesize
16.0MB

Download
memory/4516-174-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/4516-173-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/4516-170-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/4516-171-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/4632-166-0x00007FF9B6AE0000-0x00007FF9B75A1000-memory.dmp

Filesize
10.8MB

Download
memory/4632-162-0x000001BCF4A40000-0x000001BCF4EC2000-memory.dmp

Filesize
4.5MB

Download
memory/4840-168-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/4840-167-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download