Analysis

  • max time kernel
    40s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 16:55

General

  • Target

    f56a318e5b8895a4c5519026384a00d9efc9dd0bd4cc4d6065daefb953f27bf1.exe

  • Size

    4.4MB

  • MD5

    515f1ac176d6afc35d50fe5ce2644b5e

  • SHA1

    d79f8ebec3279e03f85c43d463c57025970439ff

  • SHA256

    f56a318e5b8895a4c5519026384a00d9efc9dd0bd4cc4d6065daefb953f27bf1

  • SHA512

    91984836cd93d1eb6c1809102213271fbbe5648f3bb55194c44bc941e57754d3086b9c37cb4487a8a513f633421da5446980e8ca5134c51cb837a7242cef5cea

  • SSDEEP

    49152:f+2Kq14pih9acRRUxup4AXOjKzuFYdkm9buOBqFoZ8hpTQd0yx:ay4podR9OjK9kSbuOBqFoZspsd0y

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\f56a318e5b8895a4c5519026384a00d9efc9dd0bd4cc4d6065daefb953f27bf1.exe
    "C:\Users\Admin\AppData\Local\Temp\f56a318e5b8895a4c5519026384a00d9efc9dd0bd4cc4d6065daefb953f27bf1.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:1248
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1124

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.dat

    Filesize

    4KB

    MD5

    e81b1c337aca031dba77f14ffb5337da

    SHA1

    ea986da2d3e48a593269723297d261dbb5d816fe

    SHA256

    eee4578407c0f51f38bc2533f737dbc9457fb79f0616da60c592d806f1e5ca52

    SHA512

    f168f96720433f700c81eb1ce8927dba1682f6231c8c1d8875e8f60d9627ae8c09fbc95e16a624bd38ed456ae0f27ae8ca8d9d3ae5d7c660d7ac6ca5a82bbb48

  • C:\Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.tlb

    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\YoutubeAdBlocke\OAZr48A3Nz1RJx.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/628-61-0x0000000000000000-mapping.dmp

  • memory/1124-65-0x0000000000000000-mapping.dmp

  • memory/1124-66-0x000007FEFBCC1000-0x000007FEFBCC3000-memory.dmp

    Filesize

    8KB

  • memory/1248-54-0x0000000075351000-0x0000000075353000-memory.dmp

    Filesize

    8KB

  • memory/1248-55-0x0000000002AA0000-0x0000000002B69000-memory.dmp

    Filesize

    804KB