Overview

overview

10

Static

static

EMInstalle....6.exe

windows7_x64

8

EMInstalle....6.exe

windows10_x64

10

Sharing

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General

  • Target

    EMInstaller-3.4.0.6.exe

  • Size

    143.5MB

  • Sample

    210309-n86nx5kzse

  • MD5

    57ffe5fbca3864d9d46f3f1262dedae3

  • SHA1

    7c376879e0611c059eb5e672e46d9e0720ba187f

  • SHA256

    4bd67fea57ad57f6cc36306a5daa25519593e3cb384d77f9681289f8cfea5f0b

  • SHA512

    78c914b2f063e080471824b9c79af99a9ec75f33229a0816c18280bf6b27d7a43f32228efb29a715d4515e2143d9f6b287a8efdf554de17cc1b0f3092c00ac8d

Score
10/10
discoverymacropersistencexlm

Malware Config

Targets

    • Target

      EMInstaller-3.4.0.6.exe

    • Size

      143.5MB

    • MD5

      57ffe5fbca3864d9d46f3f1262dedae3

    • SHA1

      7c376879e0611c059eb5e672e46d9e0720ba187f

    • SHA256

      4bd67fea57ad57f6cc36306a5daa25519593e3cb384d77f9681289f8cfea5f0b

    • SHA512

      78c914b2f063e080471824b9c79af99a9ec75f33229a0816c18280bf6b27d7a43f32228efb29a715d4515e2143d9f6b287a8efdf554de17cc1b0f3092c00ac8d

    Score
    10/10
    discoverymacropersistencexlm

    • Registers COM server for autorun

      persistence

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Suspicious Office macro

      Office document equipped with 4.0 macros.

      macroxlm

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

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

      discovery

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

4
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

4
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Tasks