Overview

overview

10

Static

static

1

2730464d9d...45.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2730464d9dd8281efae4a02efc3bedb74567883b81b90c4198250545a1d40245

  • Size

    3.8MB

  • Sample

    250402-pf4hmswwht

  • MD5

    220aae5d05fd2cc172ddb78e3b5a79d8

  • SHA1

    7f66e1d9d3bb81eb4df045ca7ece093ca166a595

  • SHA256

    2730464d9dd8281efae4a02efc3bedb74567883b81b90c4198250545a1d40245

  • SHA512

    3252348ade86c5913648c041ce58e438b7be7ca8b1554ba64f1024a4d9e126d19bb8a58536f5a4a1d0b2c93d472393f32336fac800c1b8b66a82bd274e0fc2c2

  • SSDEEP

    49152:MhbFk85ulG4dJXY5UeD1jWs1O/BP4YPpPAPGPpPVP6PJP8P8P9PdPdPRPfPdPlPl:WRk85ulG4XywJxFTsmBm

Score
10/10
valleyrat_s2backdoordefense_evasiondiscoveryevasionprivilege_escalationtrojan

Malware Config

Extracted

Family

valleyrat_s2

Version

1.0

C2

154.219.97.191:6666

Attributes
  • campaign_date

    2025. 3.14

Targets

    • Target

      2730464d9dd8281efae4a02efc3bedb74567883b81b90c4198250545a1d40245

    • Size

      3.8MB

    • MD5

      220aae5d05fd2cc172ddb78e3b5a79d8

    • SHA1

      7f66e1d9d3bb81eb4df045ca7ece093ca166a595

    • SHA256

      2730464d9dd8281efae4a02efc3bedb74567883b81b90c4198250545a1d40245

    • SHA512

      3252348ade86c5913648c041ce58e438b7be7ca8b1554ba64f1024a4d9e126d19bb8a58536f5a4a1d0b2c93d472393f32336fac800c1b8b66a82bd274e0fc2c2

    • SSDEEP

      49152:MhbFk85ulG4dJXY5UeD1jWs1O/BP4YPpPAPGPpPVP6PJP8P8P9PdPdPRPfPdPlPl:WRk85ulG4XywJxFTsmBm

    Score
    10/10
    valleyrat_s2backdoordefense_evasiondiscoveryevasionprivilege_escalationtrojan

    • Modifies Windows Defender DisableAntiSpyware settings

      evasiontrojan

    • UAC bypass

      defense_evasiontrojan

    • ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Valleyrat_s2 family

      valleyrat_s2

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Access Token Manipulation

1
T1134

Create Process with Token

1
T1134.002

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Access Token Manipulation

1
T1134

Create Process with Token

1
T1134.002

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks