Analysis

  • max time kernel
    166s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 21:14

General

  • Target

    a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4.exe

  • Size

    4.3MB

  • MD5

    ccdc0150b7d3ad18eeb151d8071016a3

  • SHA1

    33ac9cae63bd68ee1d96d19bdf20c9a8dd182dd4

  • SHA256

    a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4

  • SHA512

    913c44419edb0c7ac7e57a5974c3dd834ebcb09f6687111b4a20968becb4378341b06d7f99b8a47d047e95c3a3e7bf1e513bce0299e78ff22b6160176fc3f8bb

  • SSDEEP

    49152:EUEvXcbN7MdNBR/PBfltMqdMxR+w2UduyiV4vO6yiMPn+7d0agxpA:37MRR1FMnlduyiV4v1nMPn+7

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\a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4.exe
    "C:\Users\Admin\AppData\Local\Temp\a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4.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:360
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:3524
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:4584
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4908

      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\f83dFOfzAIIrNC.dat
        Filesize

        3KB

        MD5

        6e3a5bc65ad71ed5fd1ccd765ca3ac64

        SHA1

        e51ea12e0961470aa6eae34306f776f7d73428b2

        SHA256

        c3e93507089e406097c3f8153a467ed5eb029b17eabf9791292439d6131dd887

        SHA512

        57a1a4a4ae2c5add120dfeda85ef1646763d654d59bd037d8c060fe7cf698c2dfe850328c6ea35ad4fc4f3d816e0bd9b6ddc373b26f045647427195436a08520

      • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.dll
        Filesize

        737KB

        MD5

        15b1d0053054e33606c48c3be74b73fb

        SHA1

        c6bded9c595b0cca4039470b43005b30af94d004

        SHA256

        a959cc9313ba65bb36d7041db8bb7e735fbf5fc550e345e5ca132eb7097d5c80

        SHA512

        647492954e192cf2f9685852ed7f90991ff73f084bd1537bd573fdb527be4cc1d63b23961cccfc43424e75f226a8b2dcd37ded53dd72195637219df67c6964b5

      • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.tlb
        Filesize

        3KB

        MD5

        d83675648e6f93a17ca3b6062d97759d

        SHA1

        4072a4f6e706a0121be068aa3a38ba4a7c4f9ba1

        SHA256

        4c1cecd724cb309cf65ccdc1ddaf8678524abc45a2bb3dedbb5f3ae5e603968c

        SHA512

        d27620a33f446aef5e7501ce599b3b09b9df1d2a12cbf9644ce50610709b50052eb89e48f8360123a67876780cc0d584e09be82f65ab4e3694271ccd26a00841

      • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll
        Filesize

        871KB

        MD5

        36cddfd3d2717b327fc5f8baa561bfd0

        SHA1

        8bba9508ea9646fdb43dfe05e18ce6ef87a91e31

        SHA256

        7c99cf9fe01131c53365eaefcc4eca91a24bb0bd40f15291dfa6a7f31999fb60

        SHA512

        3af4fd610616eb2e2b84977afbc836e38b6191a28074b39b092f540358e058fa91def134b61f2e7658225b5d7725e9363841ef74aee27ffaa908fa109f6bb74c

      • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll
        Filesize

        871KB

        MD5

        36cddfd3d2717b327fc5f8baa561bfd0

        SHA1

        8bba9508ea9646fdb43dfe05e18ce6ef87a91e31

        SHA256

        7c99cf9fe01131c53365eaefcc4eca91a24bb0bd40f15291dfa6a7f31999fb60

        SHA512

        3af4fd610616eb2e2b84977afbc836e38b6191a28074b39b092f540358e058fa91def134b61f2e7658225b5d7725e9363841ef74aee27ffaa908fa109f6bb74c

      • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll
        Filesize

        871KB

        MD5

        36cddfd3d2717b327fc5f8baa561bfd0

        SHA1

        8bba9508ea9646fdb43dfe05e18ce6ef87a91e31

        SHA256

        7c99cf9fe01131c53365eaefcc4eca91a24bb0bd40f15291dfa6a7f31999fb60

        SHA512

        3af4fd610616eb2e2b84977afbc836e38b6191a28074b39b092f540358e058fa91def134b61f2e7658225b5d7725e9363841ef74aee27ffaa908fa109f6bb74c

      • memory/360-132-0x0000000003B00000-0x0000000003BC8000-memory.dmp
        Filesize

        800KB

      • memory/2864-138-0x0000000000000000-mapping.dmp
      • memory/3524-141-0x0000000000000000-mapping.dmp