General

  • Target
    Merluis - Original PROTECTED.7z
  • Size 145.9MB
  • Sample260407-s8dpgahs5l
  • SHA256 1cab1a7d98db28873ed7a2b7a034d58eb309ed61de8df26b785853e62ee04ab6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Merluis Setup 2.0.0.exe
    • Size 146.0MB
    • SHA256 bd3997c44f1820eccc6574ee003bf5319b6a27d28e782937271c6ae190af024d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates processes with tasklist

    • Target
      $PLUGINSDIR/SpiderBanner.dll
    • Size 9KB
    • SHA256 996a259e53ca18b89ec36d038c40148957c978c0fd600a268497d4c92f882a93
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/StdUtils.dll
    • Size 100KB
    • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/System.dll
    • Size 12KB
    • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/WinShell.dll
    • Size 3KB
    • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/app-64.7z
    • Size 145.1MB
    • SHA256 7ce28826c1994c785b86b6655fc67841559be28aa8fa3825efc22599346a9671
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      LICENSES.chromium.html
    • Size 14.5MB
    • SHA256 a683de33a700d9b4989416e1cd394169154574e83773e009a71daf9dd8e1ab96
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    4/10
    • Target
      Merluis.exe
    • Size 200.4MB
    • SHA256 6f6ee4710884d7b9a6fe498ffe66d0833ccdaddc2a99dff529a42fce2ed32d50
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates processes with tasklist

    • Target
      d3dcompiler_47.dll
    • Size 4.7MB
    • SHA256 289767b49dc8525bce262ea06fee4ef9fced2e131a55b25654ce871c1f0498b2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      ffmpeg.dll
    • Size 2.9MB
    • SHA256 e5269bf9b9b9451a2031cb36cac2a349d8237bc603763f9bbd87aa2ea26a9d5b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      libEGL.dll
    • Size 490KB
    • SHA256 43c99316b238e294bbe0341bf99887bc64a3a576df058182030166613d272bfc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      libGLESv2.dll
    • Size 7.7MB
    • SHA256 102e14130bc86237811e72d79f4c8ab4500d523ffe5d7e2cc4fb47c8ca281cd5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      resources/app.asar
    • Size 549KB
    • SHA256 e7749ab8079fcb941486bcbf8da9f9511fc89ea35e6189cb40259b29f8cfcbbb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      resources/app.asar.unpacked/update.jar
    • Size 24.6MB
    • SHA256 b4a7989bbe6d62951b93a33515f6690dab161e226aaae820ee6d9b086836d433
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Loads dropped DLL

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates processes with tasklist

    • Target
      resources/elevate.exe
    • Size 105KB
    • SHA256 9b1fbf0c11c520ae714af8aa9af12cfd48503eedecd7398d8992ee94d1b4dc37
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      snapshot_blob.bin
    • Size 329KB
    • SHA256 fac1244b22c24bcf7113231faa60ee7effeada447abf21e516078e46c180d367
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      vk_swiftshader.dll
    • Size 5.3MB
    • SHA256 f2b284e5ef86a9d5aeb27ee816cb59a3eb479b01c1434639d5ed51f8b4ee893a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      vulkan-1.dll
    • Size 915KB
    • SHA256 b8a032e514dde1133e61dd2cfa4800299643ea33ecaf26598cf25ac74024200d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      $PLUGINSDIR/nsExec.dll
    • Size 6KB
    • SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/nsis7z.dll
    • Size 424KB
    • SHA256 b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10

MITRE ATT&CK Enterprise v16

Tasks

static1

Score
3/10

behavioral1

defense_evasiondiscoveryexecutionpersistencespywarestealer
Score
7/10

behavioral2

defense_evasiondiscoveryexecutionpersistencespywarestealer
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
4/10

behavioral14

discovery
Score
4/10

behavioral15

defense_evasiondiscoveryexecutionpersistencespywarestealer
Score
7/10

behavioral16

Score
1/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

execution
Score
3/10

behavioral21

execution
Score
3/10

behavioral22

defense_evasiondiscoveryexecutionpersistence
Score
7/10

behavioral23

defense_evasiondiscoveryexecutionpersistence
Score
7/10

behavioral24

discovery
Score
3/10

behavioral25

discovery
Score
3/10

behavioral26

Score
3/10

behavioral27

Score
3/10

behavioral28

Score
1/10

behavioral29

Score
1/10

behavioral30

discovery
Score
3/10

behavioral31

discovery
Score
3/10

behavioral32

discovery
Score
3/10