Overview

overview

10

Static

static

musconv.exe

windows7-x64

8

musconv.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    musconv.exe

  • Size

    156.2MB

  • Sample

    221222-cl33vadg32

  • MD5

    ffa234b96b8451250f232b65103ba466

  • SHA1

    2a7a02aca9e8418dfe0125f590b952f714ebe72f

  • SHA256

    d52b0bb766f8489d06d67519c602f68ffae98a7fef68cc24fef28c66bb3f2194

  • SHA512

    ba7a5015fb2530f714308afc53a4f905b76d16f054ff38bd1c8d8df6998f3c261ef285fdd754bc8a9838fc2b715b28e0c58c2247deb9f3110cc4d7e793c2201b

  • SSDEEP

    3145728:0CEY9VbCxcySzHaOfbCiefT0XPwkZ5Bv16pAkUHzeq6Pn2t+b5rB:19VbCxcy0b8TMwQn6pAtyP75r

Score
10/10
coreentitydiscovery

Malware Config

Targets

    • Target

      musconv.exe

    • Size

      156.2MB

    • MD5

      ffa234b96b8451250f232b65103ba466

    • SHA1

      2a7a02aca9e8418dfe0125f590b952f714ebe72f

    • SHA256

      d52b0bb766f8489d06d67519c602f68ffae98a7fef68cc24fef28c66bb3f2194

    • SHA512

      ba7a5015fb2530f714308afc53a4f905b76d16f054ff38bd1c8d8df6998f3c261ef285fdd754bc8a9838fc2b715b28e0c58c2247deb9f3110cc4d7e793c2201b

    • SSDEEP

      3145728:0CEY9VbCxcySzHaOfbCiefT0XPwkZ5Bv16pAkUHzeq6Pn2t+b5rB:19VbCxcy0b8TMwQn6pAtyP75r

    Score
    10/10
    discoverycoreentity

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks