Overview

overview

7

Static

static

3

CosmoChat-....0.exe

windows10-2004-x64

7

CosmoChat-....0.exe

windows11-ltsc_2024-x64

7

$PLUGINSDI...ls.dll

windows10-2004-x64

3

$PLUGINSDI...ls.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

3

$PLUGINSDIR/UAC.dll

windows10-2004-x64

3

$PLUGINSDIR/UAC.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...ll.dll

windows10-2004-x64

3

$PLUGINSDI...ll.dll

windows11-ltsc_2024-x64

3

CosmoChat.exe

windows10-2004-x64

7

LICENSES.c...m.html

windows10-2004-x64

3

LICENSES.c...m.html

windows11-ltsc_2024-x64

3

d3dcompiler_47.dll

windows10-2004-x64

1

dxcompiler.dll

windows10-2004-x64

1

dxil.dll

windows10-2004-x64

1

ffmpeg.dll

windows10-2004-x64

1

libEGL.dll

windows10-2004-x64

1

libGLESv2.dll

windows10-2004-x64

1

resources/elevate.exe

windows10-2004-x64

3

resources/elevate.exe

windows11-ltsc_2024-x64

3

vk_swiftshader.dll

windows10-2004-x64

1

vulkan-1.dll

windows10-2004-x64

1

$PLUGINSDI...gs.dll

windows10-2004-x64

3

$PLUGINSDI...gs.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...ec.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...7z.dll

windows10-2004-x64

3

$PLUGINSDI...7z.dll

windows11-ltsc_2024-x64

3

$R0/Uninst...at.exe

windows10-2004-x64

7

$R0/Uninst...at.exe

windows11-ltsc_2024-x64

7

$PLUGINSDI...ls.dll

windows10-2004-x64

3

Sharing

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General

  • Target
    CosmoChat-Setup-1.0.0.exe
  • Size 87.8MB
  • Sample260712-vja86afy3v
  • SHA256 ab9e05d512feb3b3a383f06085d829c7447eca995f344b85db766bc9a6be0fc4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
defense_evasiondiscoveryexecution

Malware Config

Targets

    • Target
      CosmoChat-Setup-1.0.0.exe
    • Size 87.8MB
    • SHA256 ab9e05d512feb3b3a383f06085d829c7447eca995f344b85db766bc9a6be0fc4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    discovery

    • Loads dropped DLL

    behavioral1behavioral2
    • Target
      $PLUGINSDIR/StdUtils.dll
    • Size 100KB
    • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral3behavioral4
    • Target
      $PLUGINSDIR/System.dll
    • Size 12KB
    • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral5behavioral6
    • Target
      $PLUGINSDIR/UAC.dll
    • Size 14KB
    • SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral7behavioral8
    • Target
      $PLUGINSDIR/WinShell.dll
    • Size 3KB
    • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    discovery
    behavioral10behavioral9
    • Target
      CosmoChat.exe
    • Size 195.2MB
    • SHA256 0c322e1feb12fff8c9360977ec52c1134b217b23e0809382f4ab3926a7922f9c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10

    • Checks computer location settings

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

    behavioral11
    • Target
      LICENSES.chromium.html
    • Size 14.6MB
    • SHA256 6965e1b04dc81a012981508299e28542abff2bc7f418071c264f0b53e0c63f34
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral12behavioral13
    • Target
      d3dcompiler_47.dll
    • Size 4.7MB
    • SHA256 289767b49dc8525bce262ea06fee4ef9fced2e131a55b25654ce871c1f0498b2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral14
    • Target
      dxcompiler.dll
    • Size 24.7MB
    • SHA256 6bf9d1e2befc53a95b7b7c374def814af0e1a21ddeb617779397e3e6ccd3b497
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral15
    • Target
      dxil.dll
    • Size 1.4MB
    • SHA256 473f5e853120a5b6ca583ac51f453664abae15c0db1d307f29c8bf7a7b89f96c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral16
    • Target
      ffmpeg.dll
    • Size 2.9MB
    • SHA256 67f37568031d61040ae13022a8ec933f7d4ca7faecbb71a701f0b36489c5a330
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral17
    • Target
      libEGL.dll
    • Size 493KB
    • SHA256 4e33a8b0632cdab12c0fab456a7d76c3c608fc9940746acd158effc493ba49c6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral18
    • Target
      libGLESv2.dll
    • Size 7.7MB
    • SHA256 1a606ebb09bc8bcb64edefffe3fccecf720b557b9f23ba2aa4331b58106d9991
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral19
    • Target
      resources/elevate.exe
    • Size 105KB
    • SHA256 9b1fbf0c11c520ae714af8aa9af12cfd48503eedecd7398d8992ee94d1b4dc37
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral20behavioral21
    • Target
      vk_swiftshader.dll
    • Size 5.3MB
    • SHA256 176adce81d9f0f1aac302806be3dbb67abda46e13355bb85c4868057c6e3a223
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral22
    • Target
      vulkan-1.dll
    • Size 900KB
    • SHA256 d5acc73241b46dcfd7ea5f970eab9fdc2ac5a3dc737e23d5947980972ed0a2b4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral23
    • Target
      $PLUGINSDIR/nsDialogs.dll
    • Size 9KB
    • SHA256 1e40211af65923c2f4fd02ce021458a7745d28e2f383835e3015e96575632172
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral24behavioral25
    • Target
      $PLUGINSDIR/nsExec.dll
    • Size 6KB
    • SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral26behavioral27
    • Target
      $PLUGINSDIR/nsis7z.dll
    • Size 424KB
    • SHA256 b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral28behavioral29
    • Target
      $R0/Uninstall CosmoChat.exe
    • Size 429KB
    • SHA256 d3c839e3c398b2b7aeadd067e0245a8f004b39fcf611b79504fc8ad568b1b38e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    defense_evasiondiscoveryexecution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution
    behavioral30behavioral31
    • Target
      $PLUGINSDIR/StdUtils.dll
    • Size 100KB
    • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral32

MITRE ATT&CK Enterprise v16

Tasks

static1

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
7/10

behavioral12

discovery
Score
3/10

behavioral13

discovery
Score
3/10

behavioral14

Score
1/10

behavioral15

Score
1/10

behavioral16

Score
1/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

discovery
Score
3/10

behavioral21

discovery
Score
3/10

behavioral22

Score
1/10

behavioral23

Score
1/10

behavioral24

discovery
Score
3/10

behavioral25

discovery
Score
3/10

behavioral26

discovery
Score
3/10

behavioral27

discovery
Score
3/10

behavioral28

discovery
Score
3/10

behavioral29

discovery
Score
3/10

behavioral30

defense_evasiondiscoveryexecution
Score
7/10

behavioral31

defense_evasiondiscoveryexecution
Score
7/10

behavioral32

discovery
Score
3/10