webmonitor | a902b091e859022ae263bab22a5cf75d5b892314c455752a2d9195d326537118

General

Target

a902b091e859022ae263bab22a5cf75d5b892314c455752a2d9195d326537118
Size

2.9MB
Sample

220502-whvrvacbd9
MD5

87a119cb90e4c20d11fe569b9e26f0b6
SHA1

bf548af2eaf6272b3e7810b36595451542e5b4ba
SHA256

a902b091e859022ae263bab22a5cf75d5b892314c455752a2d9195d326537118
SHA512

c4ae15f80ee122c35694259e48155a69b5bdf4a7d1b4cf753cdb40dc6efd3833eb4b54afb087060ba51ec6c6f54c0d897df68fa5b26b1d4406ea6c568f6b213f

Score

10^/10

Malware Config

Targets

- Target
  
  a902b091e859022ae263bab22a5cf75d5b892314c455752a2d9195d326537118
- Size
  
  2.9MB
- MD5
  
  87a119cb90e4c20d11fe569b9e26f0b6
- SHA1
  
  bf548af2eaf6272b3e7810b36595451542e5b4ba
- SHA256
  
  a902b091e859022ae263bab22a5cf75d5b892314c455752a2d9195d326537118
- SHA512
  
  c4ae15f80ee122c35694259e48155a69b5bdf4a7d1b4cf753cdb40dc6efd3833eb4b54afb087060ba51ec6c6f54c0d897df68fa5b26b1d4406ea6c568f6b213f
Score

10^/10

webmonitor backdoor infostealer persistence rat upx suricata
- Modifies WinLogon for persistence
  persistence
- 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
- 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
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Unexpected DNS network traffic destination
  Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks

Sharing

General

Malware Config

Targets

Modifies WinLogon for persistence

RevcodeRat, WebMonitorRat

WebMonitor Payload

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

Executes dropped EXE

UPX packed file

Checks computer location settings

Loads dropped DLL

Unexpected DNS network traffic destination

Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Tasks

static1

behavioral1

behavioral2