Overview

overview

10

Static

static

4687fe71e7...1a.exe

windows7-x64

10

4687fe71e7...1a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4687fe71e7d3b3866a5ffdc9622daff21bb0d565d2d0918345998d37bb98671a

  • Size

    205KB

  • Sample

    221123-mrbkwseg79

  • MD5

    8f2c91d52951d6da1be44ac1ee38cbd3

  • SHA1

    0d374f2cb7e25566c489eec0a3244ee05562bc68

  • SHA256

    4687fe71e7d3b3866a5ffdc9622daff21bb0d565d2d0918345998d37bb98671a

  • SHA512

    c0770d0b8761fbfbdfd49acbffa979ba605be6795f70e9a533e7984824a3964622f27f0c2303480126994e75e15abbd196c6f3b7fac23fa5add204fc63aae615

  • SSDEEP

    3072:eqhMPssRhlARSOsdwD/98out3SDADeak7dJHB/AKG:eqhMPssRARoiSoS3SsQLH5AK

Score
10/10
evasionpersistencetrojan

Malware Config

Targets

    • Target

      4687fe71e7d3b3866a5ffdc9622daff21bb0d565d2d0918345998d37bb98671a

    • Size

      205KB

    • MD5

      8f2c91d52951d6da1be44ac1ee38cbd3

    • SHA1

      0d374f2cb7e25566c489eec0a3244ee05562bc68

    • SHA256

      4687fe71e7d3b3866a5ffdc9622daff21bb0d565d2d0918345998d37bb98671a

    • SHA512

      c0770d0b8761fbfbdfd49acbffa979ba605be6795f70e9a533e7984824a3964622f27f0c2303480126994e75e15abbd196c6f3b7fac23fa5add204fc63aae615

    • SSDEEP

      3072:eqhMPssRhlARSOsdwD/98out3SDADeak7dJHB/AKG:eqhMPssRARoiSoS3SsQLH5AK

    Score
    10/10
    evasionpersistencetrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies system executable filetype association

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Executes dropped EXE

    • Sets file execution options in registry

      persistence

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Change Default File Association

1
T1042

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

9
T1112

Hidden Files and Directories

2
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

1
T1490

Tasks