General

  • Target

    ac1d2012f3c4e4433731a8aaba47735e5dd729c6f8bc82ffeb5f89151d976712

  • Size

    2.0MB

  • Sample

    240312-rstv3sch94

  • MD5

    54c1ddc43853feca9dc00f0b95fe55e7

  • SHA1

    18bff92b24bc8f4da84a513ee70042ec93c33447

  • SHA256

    ac1d2012f3c4e4433731a8aaba47735e5dd729c6f8bc82ffeb5f89151d976712

  • SHA512

    946072c7373ba8c13f141ae09444379adc5328854add98b7ce38ae0bfbf6fb7b3238cd93bff6732c4d8b5c2104409b28a26e7790cc12a047770bbee7508fd8b9

  • SSDEEP

    49152:LoQU2RELx4AfI00rlyln7eUiXYBbvzCU/La7:TREt4iWlylyXYpvhza7

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      ac1d2012f3c4e4433731a8aaba47735e5dd729c6f8bc82ffeb5f89151d976712

    • Size

      2.0MB

    • MD5

      54c1ddc43853feca9dc00f0b95fe55e7

    • SHA1

      18bff92b24bc8f4da84a513ee70042ec93c33447

    • SHA256

      ac1d2012f3c4e4433731a8aaba47735e5dd729c6f8bc82ffeb5f89151d976712

    • SHA512

      946072c7373ba8c13f141ae09444379adc5328854add98b7ce38ae0bfbf6fb7b3238cd93bff6732c4d8b5c2104409b28a26e7790cc12a047770bbee7508fd8b9

    • SSDEEP

      49152:LoQU2RELx4AfI00rlyln7eUiXYBbvzCU/La7:TREt4iWlylyXYpvhza7

    • Stealc

      Stealc is an infostealer written in C++.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Target

      $PLUGINSDIR/INetC.dll

    • Size

      21KB

    • MD5

      2b342079303895c50af8040a91f30f71

    • SHA1

      b11335e1cb8356d9c337cb89fe81d669a69de17e

    • SHA256

      2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f

    • SHA512

      550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47

    • SSDEEP

      384:KOoVVefeWsI7rsIquPLNN546o0Ac9khYLMkIX0+Gzyekv:4VVaeE7wIqyJN5i

    Score
    3/10
    • Target

      $TEMP/BroomSetup.exe

    • Size

      1.7MB

    • MD5

      eee5ddcffbed16222cac0a1b4e2e466e

    • SHA1

      28b40c88b8ea50b0782e2bcbb4cc0f411035f3d5

    • SHA256

      2a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54

    • SHA512

      8f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc

    • SSDEEP

      49152:YUnaQiKJ8N+AadA6mICFhNGffVCPi9NUko6jE:ZwKa+u6mICFSwPKDK

    Score
    7/10
    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Target

      $TEMP/syncUpd.exe

    • Size

      199KB

    • MD5

      04cdeae76554c91315c3524135267d7c

    • SHA1

      4e4bc1eb29a0d745b65c87d64bf80e5a8461b7f8

    • SHA256

      62a4dd1892de69284a7ae05b81b79da497e3840ceb4e8f4f0fd8fc83d4d643b6

    • SHA512

      6d645cdc6335a1df3863ec99f10beb977a8cc177316d26eddce34936ea1428f3b7d82ea2d44d0c36923538b32ce3444220b0b0088383dec279a9c91fbd34376a

    • SSDEEP

      3072:cqDOqHgFCDiiYFGF4yEGKjDkT3uDj+4AjaSfkquqltJrUm+C:RfgaeKPp3GjI7/oU

    • Stealc

      Stealc is an infostealer written in C++.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

MITRE ATT&CK Enterprise v15

Tasks