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Overview

overview

10

Static

static

3

ab1d873d92...f1.exe

windows7-x64

10

ab1d873d92...f1.exe

windows10-2004-x64

1

Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/02/2024, 05:29

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General

  • Target

    ab1d873d92302df9cdbe1bbb67f4c9f1.exe

  • Size

    485KB

  • MD5

    ab1d873d92302df9cdbe1bbb67f4c9f1

  • SHA1

    7985c9cbb9c1b84b910f47b2096fd5f02ca97829

  • SHA256

    9ad94c700902f2b8987a61d65cf57169a6720eac234a2bee2a252192ee798bff

  • SHA512

    7140d51c26430d0f1b37110575944d62c8e52a6aea0169ca728bfe430d5a61dae542e3b8a28cae0fd82b2fbba985fd636b9cffd78e5af61bc36c6f9e76b0290d

  • SSDEEP

    12288:nbaOt4cDU+iTDwZGdXbL3JTdofqNLHagw8Dw0/kU1j31:bDDsm+rL5TRNL6iwiku

Score
10/10
evasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 2 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion
  • Views/modifies file attributes 1 TTPs 3 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab1d873d92302df9cdbe1bbb67f4c9f1.exe
    "C:\Users\Admin\AppData\Local\Temp\ab1d873d92302df9cdbe1bbb67f4c9f1.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2868
    • C:\ProgramData\VkNulndOvnOg.exe
      C:\ProgramData\VkNulndOvnOg.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Maps connected drives based on registry
      • Modifies Control Panel
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2208
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Users\Admin\*.* " /s /d
        3⤵
        • Views/modifies file attributes
        PID:1428
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\ProgramData\Microsoft\Windows\Start Menu\*.* " /s /d
        3⤵
        • Views/modifies file attributes
        PID:3000
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\*.*" /s /d
        3⤵
        • Drops desktop.ini file(s)
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Views/modifies file attributes
        PID:1332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\VkNulndOvnOg.exe
    Filesize

    485KB

    MD5

    ab1d873d92302df9cdbe1bbb67f4c9f1

    SHA1

    7985c9cbb9c1b84b910f47b2096fd5f02ca97829

    SHA256

    9ad94c700902f2b8987a61d65cf57169a6720eac234a2bee2a252192ee798bff

    SHA512

    7140d51c26430d0f1b37110575944d62c8e52a6aea0169ca728bfe430d5a61dae542e3b8a28cae0fd82b2fbba985fd636b9cffd78e5af61bc36c6f9e76b0290d

    Download Submit

  • C:\ProgramData\VkNulndOvnOg.exe
    Filesize

    455KB

    MD5

    c6c4d95559606e45f7b508d4c383aa60

    SHA1

    8a3a6424cfc9255e9b5e52574a391a251b3e9661

    SHA256

    b8515a56b6fa559f52346ce194e1e0b41711ed86511a3316c7498cdd2984b822

    SHA512

    d5394df7ab5eae2e6005d7eec805f2858fd6ae0b049b4f343e9546799703b09b4cd8d20c529f2a7f324fae32794360d05a3bdab03ce4a25eb47a3f514ef62c0d

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\1U1XDYPG.txt
    Filesize

    112B

    MD5

    42b1e03403c5509dc806f7f21c72d5bc

    SHA1

    a4187e2a360558045738f5f4b1407f3e47d53c47

    SHA256

    eb779235cda57d10c7210c02934d06ce95c148a5deee0b58922fce973ce62fa6

    SHA512

    6d9efffac132d88c3f0520a7a7bf2366a0fa1123c7ab6146dfdaa73ab68f937d24574cd3f1ae1580a40194bc28409576413bd2305a7688128582d2837f00134d

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  • \ProgramData\VkNulndOvnOg.exe
    Filesize

    315KB

    MD5

    fdd833b9e6c5d5e5b58aa884f2ed03c7

    SHA1

    0a8556ad7959fdb1d62ade4771dc7be6eb99b309

    SHA256

    e86486224c9e23dbf8642c0e03d372f129d8f521ff5ae771885c9664d62156d7

    SHA512

    d259d33da716b68e0e8e1683075f17cbecc28b067f294633271f3f95177360bc46cd4651c55047fba56dcb727e106218169021375475ada7003b242a280179d1

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  • \ProgramData\VkNulndOvnOg.exe
    Filesize

    412KB

    MD5

    88ec193704bc9c961c61220123ded62e

    SHA1

    37a69ba1507d6be0129ba5aa5fdf1167e504b14b

    SHA256

    0b70827583b35efbdcc7e0391e9997be604cfb1102d17accdf812c6b0da0f563

    SHA512

    a3dbda9e9560beb9aa75233bde5cf72083f7c4f37ed197d186b9d45c26a6b22e99d898015efed742520de1a2b63c518f827b0776ff57e2a21055ec88f24e1ede

    Download Submit

  • memory/2208-10-0x0000000002010000-0x0000000002180000-memory.dmp

    Filesize

    1.4MB

    Download

  • memory/2208-11-0x0000000000980000-0x0000000000C0F000-memory.dmp

    Filesize

    2.6MB

    Download

  • memory/2208-27-0x0000000000980000-0x0000000000C0F000-memory.dmp

    Filesize

    2.6MB

    Download

  • memory/2208-29-0x0000000000980000-0x0000000000C0F000-memory.dmp

    Filesize

    2.6MB

    Download

  • memory/2208-30-0x00000000021F0000-0x00000000021F1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2868-2-0x00000000012F0000-0x000000000157F000-memory.dmp

    Filesize

    2.6MB

    Download

  • memory/2868-13-0x00000000012F0000-0x000000000157F000-memory.dmp

    Filesize

    2.6MB

    Download

  • memory/2868-0-0x0000000000A10000-0x0000000000D10000-memory.dmp

    Filesize

    3.0MB

    Download