General

  • Target
    WorkshopDownloader.zip
  • Size 22.1MB
  • Sample260908-fn72cssbpc
  • SHA256 61d6cf2f6a9c51f613621cca2a7549349ca8866ade7a8842f00267614d212543
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      WorkshopDownloader.zip
    • Size 22.1MB
    • SHA256 61d6cf2f6a9c51f613621cca2a7549349ca8866ade7a8842f00267614d212543
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      DepotDownloaderMod/DepotDownloaderMod.deps.json
    • Size 7KB
    • SHA256 4c7728140a17ec8b2664fd6cedc94f5356260ada99a66b9e8512c10c6430b4d7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      DepotDownloaderMod/DepotDownloaderMod.dll
    • Size 172KB
    • SHA256 f6200eadeb9e36f6e1529a9592302bd04c17c2be3416bd43641a66262c777e99
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      DepotDownloaderMod/DepotDownloaderMod.exe
    • Size 190KB
    • SHA256 dd8fdae42102ccf61ed98892c723ec935c86cdb551f1a9c05d4d573ee74f0e58
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      DepotDownloaderMod/DepotDownloaderMod.pdb
    • Size 50KB
    • SHA256 3508dbe17a8eb3cdefda1e0d85cc00624963fb3e949da776fbc9b64e207a3bee
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      DepotDownloaderMod/DepotDownloaderMod.runtimeconfig.json
    • Size 482B
    • SHA256 ab8e3ebb2edfba8d0abc0aa80b96d96cc5957c4d1861b30b51b162b6472742a8
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      DepotDownloaderMod/LICENSE
    • Size 17KB
    • SHA256 8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      DepotDownloaderMod/QRCoder.dll
    • Size 141KB
    • SHA256 3c5674f67a97fd9ed38dd537d892ee9efd328afad4d6c1d67f99fde2c108dd57
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      DepotDownloaderMod/SteamKit2.dll
    • Size 6.2MB
    • SHA256 2931f875143f17e104bd4de59cb839c84211b11c3b2aaa0bdd5257fe0b3ceed6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      DepotDownloaderMod/System.IO.Hashing.dll
    • Size 54KB
    • SHA256 a1ca98abdf21ef16e4a8a1c2b9f8b3819957bde39495bc6d4eddaf0453407853
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      DepotDownloaderMod/ZstdSharp.dll
    • Size 386KB
    • SHA256 f0149a8f123c9ab8baf67df78096ba5b4d983c1030ad52ac1099a3f713eb60c0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      DepotDownloaderMod/lastsavelocation.cfg
    • Size 70B
    • SHA256 49c331fc005c4ac8dcf500240ca92c4ae44fff0dadbf253a0c0c34f152697e0f
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      DepotDownloaderMod/protobuf-net.Core.dll
    • Size 292KB
    • SHA256 d8b333ec409d0cc23954a1da07028e54cdaca7d1061a52e4ae265baef63d8bd1
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      DepotDownloaderMod/protobuf-net.dll
    • Size 278KB
    • SHA256 c482090bf4002b2b65a576a0e44ffa860b63086ff8c3db122f7ea480aeb6f2d7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      WorkshopDownloader_Pro.exe
    • Size 19.6MB
    • SHA256 64109c55eb7216ed219b3531f01d3e5c82534a3e31083e992fde27e34d365e11
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    • Loads dropped DLL

    • Target
      SteamWorkShopDownloaderpy.pyc
    • Size 21KB
    • SHA256 a95fe51313f3405441cd2b99f3c4cba90e92b3774642e836c5411522cc787c74
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks

static1

pyinstallerpyarmor
Score
3/10

behavioral1

discovery
Score
3/10

behavioral2

adwarepersistenceransomwarespyware
Score
8/10

behavioral3

execution
Score
3/10

behavioral4

adwareexecutionpersistenceransomwarespyware
Score
8/10

behavioral5

Score
1/10

behavioral6

adwarepersistenceransomwarespyware
Score
8/10

behavioral7

Score
1/10

behavioral8

Score
1/10

behavioral9

execution
Score
3/10

behavioral10

adwareexecutionpersistencespyware
Score
8/10

behavioral11

execution
Score
3/10

behavioral12

execution
Score
3/10

behavioral13

execution
Score
3/10

behavioral14

execution
Score
3/10

behavioral15

Score
1/10

behavioral16

Score
1/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

Score
1/10

behavioral21

Score
1/10

behavioral22

adwarepersistenceransomwarespyware
Score
8/10

behavioral23

execution
Score
3/10

behavioral24

execution
Score
3/10

behavioral25

Score
1/10

behavioral26

Score
1/10

behavioral27

Score
1/10

behavioral28

Score
1/10

behavioral29

Score
7/10

behavioral30

Score
7/10

behavioral31

execution
Score
3/10

behavioral32

adwareexecutionpersistenceransomwarespyware
Score
8/10