Overview

overview

10

Static

static

10

xcgb.exe

windows7-x64

10

xcgb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_07bb3b2e7cf89aba283ffd7af3daba65b50fcd620a25fb945cc85e7d64b9094b

  • Size

    343KB

  • Sample

    241230-aa5fes1lh1

  • MD5

    a6a9bda5e3b1306010c80443e4e21786

  • SHA1

    ff6faf3d2dc091a2806f311b5828cb48ee9c56b8

  • SHA256

    07bb3b2e7cf89aba283ffd7af3daba65b50fcd620a25fb945cc85e7d64b9094b

  • SHA512

    61789a5011e009aefe89a17d165edf85637a9466306a7c509f700844f8b3884356dd86f1ca15f1f97c68bc2754625490de32f126f41eb9562b3be6b43eb937d2

  • SSDEEP

    6144:vRH5E7pOgomMgUU9G/PL3iua13cmnPjivF3U6sjywsCh7XYgaauD2ZkIIyWAoax6:N5E7pO8BUUIj35rmPmvmly27ohyZswoZ

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

Targets

    • Target

      xcgb.exe

    • Size

      745KB

    • MD5

      c0e4f49d4ea30fe8e04fdba223b44f24

    • SHA1

      42d85163e18f35fd435b5f96a0bce10b8336b440

    • SHA256

      230351e5b4ee08a6583797d942967b059aec63c32eb26427f45d4ff64701b3fe

    • SHA512

      127923ce8310070ef1083b66f92ad5b7faeabb29f2540554fd833e6132d85478f55415344127760f04fe44a7ef8a0acd243d1dec5279510567a4a64777911abc

    • SSDEEP

      12288:w8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1f/gORixB:pUKoN0bUxgGa/pfBHDb+y1HgZ

    Score
    10/10
    darkcometdiscoveryevasionpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks