Overview

overview

10

Static

static

bfcfbe03c2...5f.exe

windows7-x64

10

bfcfbe03c2...5f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bfcfbe03c2529c12178bd3821468a4f38696a2b571cdab8c8db7066f7317ad5f

  • Size

    285KB

  • Sample

    221126-2x62babe52

  • MD5

    6aeb6f5ba1e1ac048b9e077e126c3dba

  • SHA1

    a8334a547ac9e32771fe518c9b98167dfd459f66

  • SHA256

    bfcfbe03c2529c12178bd3821468a4f38696a2b571cdab8c8db7066f7317ad5f

  • SHA512

    31b1c718c786959e9f94642f353a1badbdc33059d0f0bdcfeeb3102a7b83ae551848eddc2e79c928a56fb98be9effe63c51af706bd18451d23c56786fe3100c6

  • SSDEEP

    6144:cldvE2Qugh1/Cdh95IAWq5P47Vpn5JOkf4bEm/z2RbOy:clwwXIAWqqTNf4vBy

Score
10/10
persistence

Malware Config

Targets

    • Target

      bfcfbe03c2529c12178bd3821468a4f38696a2b571cdab8c8db7066f7317ad5f

    • Size

      285KB

    • MD5

      6aeb6f5ba1e1ac048b9e077e126c3dba

    • SHA1

      a8334a547ac9e32771fe518c9b98167dfd459f66

    • SHA256

      bfcfbe03c2529c12178bd3821468a4f38696a2b571cdab8c8db7066f7317ad5f

    • SHA512

      31b1c718c786959e9f94642f353a1badbdc33059d0f0bdcfeeb3102a7b83ae551848eddc2e79c928a56fb98be9effe63c51af706bd18451d23c56786fe3100c6

    • SSDEEP

      6144:cldvE2Qugh1/Cdh95IAWq5P47Vpn5JOkf4bEm/z2RbOy:clwwXIAWqqTNf4vBy

    Score
    10/10
    persistence

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks