Analysis

  • max time kernel
    42s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 02:06

General

  • Target

    4680e13c9cbbbcc4d909cb86bb3c6312881f6e52260590fe2d35da8cb0409cce.exe

  • Size

    4.4MB

  • MD5

    5596dec42899c4485f1d0801eafc0e90

  • SHA1

    fb71d6a2b87dbb99b08b1359beeb9d5cdf97bca3

  • SHA256

    4680e13c9cbbbcc4d909cb86bb3c6312881f6e52260590fe2d35da8cb0409cce

  • SHA512

    1413e7c005bb2f66e28c80b0ccdeead8b3ec876cccdc7a644156b630e7af76696c70eca505f3fadb4ff0e4a0c3c5e68a40c2b488ab91dfc4fe4c678179b2b8d5

  • SSDEEP

    49152:SF80dsBKsu0Wcx9Uxup4jsgLptOyCzP5j/ec7SKZZ8hpTQdWW:QqBK+BxgskpthCzP57v7SKZZspsdW

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.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

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

  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4680e13c9cbbbcc4d909cb86bb3c6312881f6e52260590fe2d35da8cb0409cce.exe
    "C:\Users\Admin\AppData\Local\Temp\4680e13c9cbbbcc4d909cb86bb3c6312881f6e52260590fe2d35da8cb0409cce.exe"
    1⤵
    • Loads dropped DLL
    • Installs/modifies Browser Helper Object
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1184
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:904
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1168

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.dat
    Filesize

    4KB

    MD5

    cd92c7720895f1202bd49008a4e04ea2

    SHA1

    be126919908035f5d1edc11de9fa6830d2589582

    SHA256

    3147d82e2eb7ea325dbcb4e00d29e85ed709b5ff6a6792c3a71af92af7c2245c

    SHA512

    3818ac030d23e8db39535360b7fcaa4f7ff1cc5871122c1eae04f838e140e34d207a0594eaed4a80386f6ecd208ffebd1b05be36147721d858518ed520bb50f7

  • C:\Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.tlb
    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.dll
    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\YoutubeAdBlocke\GUWoh790BEtJ2h.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/904-61-0x0000000000000000-mapping.dmp
  • memory/1168-65-0x0000000000000000-mapping.dmp
  • memory/1168-66-0x000007FEFB631000-0x000007FEFB633000-memory.dmp
    Filesize

    8KB

  • memory/1184-54-0x0000000075A11000-0x0000000075A13000-memory.dmp
    Filesize

    8KB

  • memory/1184-55-0x0000000000870000-0x0000000000939000-memory.dmp
    Filesize

    804KB