General

  • Target
    MatroskaSplitter.exe
  • Size 1.3MB
  • Sample260723-j6p52sthjb
  • SHA256 2fbfe6761c98b332b4342353be2cef945d6a1e46bb5c7c406e6f0eb4c92db07d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      MatroskaSplitter.exe
    • Size 1.3MB
    • SHA256 2fbfe6761c98b332b4342353be2cef945d6a1e46bb5c7c406e6f0eb4c92db07d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    • Loads dropped DLL

    • Target
      $PLUGINSDIR/InstallOptions.dll
    • Size 14KB
    • SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/StartMenu.dll
    • Size 7KB
    • SHA256 7755ff2707ca19344d489a5acec02d9e310425fa6e100d2f13025761676b875b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/System.dll
    • Size 11KB
    • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      avi.dll.new
    • Size 107KB
    • SHA256 89b5dac2f62c486274db592f6889fdfa633ac462d6a19653e34a5a6020dde1be
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      avi.x64.dll.new
    • Size 119KB
    • SHA256 7084e8f74f1ec85360746b06e5e57905d5ac8c041bb6b2bad159d51c88f9c853
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      avs.dll.new
    • Size 95KB
    • SHA256 5d9e306f5b65eee12f9b2bf9aca724660b9aeb49abda66033884f5af85f90f78
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      avss.dll.new
    • Size 91KB
    • SHA256 118a8b6567b19ad19f19f4217ba2edfa0448e267836e46429f4b8d2fa9086fd3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      cue2xml.js
    • Size 4KB
    • SHA256 8bdcbc564b3042d2e62df71f8c705b88805d78170e8fdf064ee2127d090aa513
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      dsmux.exe.new
    • Size 110KB
    • SHA256 f8c0c4cb7908802bafdae561ae39fee36d84ac27a4c7ae0d650f0cb6bf1a2314
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      dsmux.x64.exe.new
    • Size 133KB
    • SHA256 0fafd74f7c987b69f51fd03d2e5a904ab6bbafc9fbba7220a71fe8f71b64698d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      dxr.dll.new
    • Size 244KB
    • SHA256 19a53adfd455c0ca3d89522d7762c2c389b8698143fd1798cda218d2c916fe1b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      dxr.x64.dll.new
    • Size 324KB
    • SHA256 874c257765b4528f85b7378a48ce53d97df94a0cd86982fa07f2bcac2428432b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Target
      gdsmux.exe.new
    • Size 349KB
    • SHA256 97b74d05d50443e31a0de2f21e4ec2bf427d6e9c01f698ef31e0f244aa7b508e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      gdsmux.x64.exe.new
    • Size 469KB
    • SHA256 1e46edd3909d6268500774fcd9079bf95542a9e69567849f79eca582669b805f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      mkunicode.dll.new
    • Size 24KB
    • SHA256 0331fe01f1843f6116f735abb1675d9cf51e29970c9a6ec876a9440013862892
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10

MITRE ATT&CK Enterprise v16

Tasks

static1

installer
Score
3/10

behavioral1

discovery
Score
7/10

behavioral2

discovery
Score
7/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discovery
Score
3/10

behavioral6

discovery
Score
3/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

discovery
Score
3/10

behavioral10

discovery
Score
3/10

behavioral11

Score
1/10

behavioral12

Score
1/10

behavioral13

discovery
Score
3/10

behavioral14

discovery
Score
3/10

behavioral15

discovery
Score
3/10

behavioral16

discovery
Score
3/10

behavioral17

execution
Score
3/10

behavioral18

execution
Score
3/10

behavioral19

discovery
Score
3/10

behavioral20

discovery
Score
3/10

behavioral21

Score
1/10

behavioral22

Score
1/10

behavioral23

discovery
Score
3/10

behavioral24

discovery
Score
3/10

behavioral25

persistenceprivilege_escalation
Score
7/10

behavioral26

persistenceprivilege_escalation
Score
7/10

behavioral27

discovery
Score
3/10

behavioral28

discovery
Score
3/10

behavioral29

Score
1/10

behavioral30

Score
1/10

behavioral31

discovery
Score
3/10

behavioral32

discovery
Score
3/10