Analysis

  • max time kernel
    152s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 02:27

General

  • Target

    3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5.exe

  • Size

    4.2MB

  • MD5

    4d299919345a7b638eefedf1d47ec7ba

  • SHA1

    0b0bc6c60c9d6814d61a7d38a1e94b16e62e01e8

  • SHA256

    3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5

  • SHA512

    a317ecdedfa6d0097b071995bfd4aa71fd545c1f39284413f52faff19061749aaceb010ed34a69e44d12c105379463fac3f88e1b39d341144129ad16d2fafb9f

  • SSDEEP

    98304:dIBSGdaGj0ESHa9xfyjII+YJ372FiCLIHkkXr0EExD:dV60g9xfymNY0X

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • Drops Chrome extension 5 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5.exe
    "C:\Users\Admin\AppData\Local\Temp\3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5.exe"
    1⤵
    • Loads dropped DLL
    • Drops Chrome extension
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2804
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2800
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:824
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4200
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:2920

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Browser Extensions

      1
      T1176

      Defense Evasion

      Modify Registry

      3
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.dat
        Filesize

        3KB

        MD5

        0970d13b5541ca4ed15053af1b283d9d

        SHA1

        724909853c120ba58d3f7bd86e86425fdb5ad777

        SHA256

        60bee2be52d5f8ff0315473b9da58308e63956a39e41cd96f21ee11b5715b2b1

        SHA512

        f99741cd9b5d64d8cdfe24906dc917647f09411e1d94b795d6662eeb60167eb35af5bf74301398f5d85328f79066951ed8c1f75b1b95f1d7887475970bb91fc6

      • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.dll
        Filesize

        744KB

        MD5

        211ab5ec38ee0ed680e1b90b37916d5b

        SHA1

        5a8f6d8b08d6ebffd28608766fe73660fe00a781

        SHA256

        c5de64a026df3c1275ea3e50b3565b8cfc4d17b09eb958a23bcc29557589b409

        SHA512

        451ee835b2caed20a57529059a9e434b8e9139c45a579cc3d6693c1af5b516d3580abcd94370e916ff9a11e5cb859cee4a1dbbab943909d2a77fbc68a200a125

      • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.tlb
        Filesize

        3KB

        MD5

        0d2aeb4f00b6579ca162c9a79f104dba

        SHA1

        fbc3019106417014ba01e5703e2729496feb6c39

        SHA256

        4cbe20901caaa5ec47de0c8e5d5333d219bbc51dadf3ad02083b21a2350fd283

        SHA512

        083c3b7ec8a01d78880349c2de635e70bc45db1523c6e9962f4d687bd15705b28a4001afd48e7be60e34ab7c2a8bf62ff1b91404c38202cfb51fd7df449e124e

      • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll
        Filesize

        874KB

        MD5

        1dc66c50cea34da91b5e917e0157ff0d

        SHA1

        c7ddb2f9d46f1836d7368434db0131619f5e7c08

        SHA256

        19627221bde386227801b307cb903837ce957f1aa6194ec8bfc7b180434f41d0

        SHA512

        48e4c5a2603ba68aaa87d03fc1fbd5c9c672c3e3b9c50178a8f00e6296ae8d14ee6bf043c6bdca49f728f1ebda156007902af628af0a41760de22c8204453fef

      • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll
        Filesize

        874KB

        MD5

        1dc66c50cea34da91b5e917e0157ff0d

        SHA1

        c7ddb2f9d46f1836d7368434db0131619f5e7c08

        SHA256

        19627221bde386227801b307cb903837ce957f1aa6194ec8bfc7b180434f41d0

        SHA512

        48e4c5a2603ba68aaa87d03fc1fbd5c9c672c3e3b9c50178a8f00e6296ae8d14ee6bf043c6bdca49f728f1ebda156007902af628af0a41760de22c8204453fef

      • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll
        Filesize

        874KB

        MD5

        1dc66c50cea34da91b5e917e0157ff0d

        SHA1

        c7ddb2f9d46f1836d7368434db0131619f5e7c08

        SHA256

        19627221bde386227801b307cb903837ce957f1aa6194ec8bfc7b180434f41d0

        SHA512

        48e4c5a2603ba68aaa87d03fc1fbd5c9c672c3e3b9c50178a8f00e6296ae8d14ee6bf043c6bdca49f728f1ebda156007902af628af0a41760de22c8204453fef

      • memory/824-141-0x0000000000000000-mapping.dmp
      • memory/2800-138-0x0000000000000000-mapping.dmp
      • memory/2804-132-0x0000000000CE0000-0x0000000000DAB000-memory.dmp
        Filesize

        812KB