Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    08-03-2024 02:23

General

  • Target

    b83f11d3feaa975cc5f1fe9b8e863466.exe

  • Size

    132KB

  • MD5

    b83f11d3feaa975cc5f1fe9b8e863466

  • SHA1

    95ec11b20109505bd303088310d5ce407de04528

  • SHA256

    fd7560012fd41454c9c2896507bec3f6b32e04d0b8b309e6fd923d071dac1264

  • SHA512

    0cbffa522d62e6e6fe4aa60e5f09551a07fbcf6141f0a1ab599c2eb628090f263224cb318bdcfe757151b1771a36ec2647430fee8e06bb5fcb0b28525f469844

  • SSDEEP

    3072:y2wj60yPQJfe+J6c77oGzbXcPnPIgQ57py1wDXOQU:wjJznoQ6ggQ1g1E

Score
8/10

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b83f11d3feaa975cc5f1fe9b8e863466.exe
    "C:\Users\Admin\AppData\Local\Temp\b83f11d3feaa975cc5f1fe9b8e863466.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Local\Temp\winini.exe
      "C:\Users\Admin\AppData\Local\Temp\winini.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Users\Admin\AppData\Local\Temp\winhost.exe
        C:\Users\Admin\AppData\Local\Temp\winhost.exe
        3⤵
        • Adds policy Run key to start application
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetWindowsHookEx
        PID:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\winhost.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\winini.exe

    Filesize

    80KB

    MD5

    6dc7d1c6ce33ff5ce185ae96d9325b20

    SHA1

    e075e2ab356ee1e1f8adfe497bfd0a0b02e86014

    SHA256

    545f9cfb5319c2ff9892612fefd018f436b64127c055e269cda95163b9f3322b

    SHA512

    61897e422b7263b02adad5bc0959b24ab3418acf057e2364e37ead4ae7c2140eeabc0b5294a083e119e165c2979d801a4710b4989c5ac230631ae059f6850dde

  • memory/2416-0-0x0000000074A50000-0x0000000074FFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2416-1-0x0000000001F50000-0x0000000001F90000-memory.dmp

    Filesize

    256KB

  • memory/2416-2-0x0000000074A50000-0x0000000074FFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2416-13-0x0000000074A50000-0x0000000074FFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2608-22-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2608-25-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2608-20-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2608-39-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2608-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2608-19-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2608-34-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2608-29-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2756-14-0x0000000074A50000-0x0000000074FFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2756-35-0x0000000074A50000-0x0000000074FFB000-memory.dmp

    Filesize

    5.7MB

  • memory/2756-21-0x0000000000A40000-0x0000000000A80000-memory.dmp

    Filesize

    256KB

  • memory/2756-28-0x0000000074A50000-0x0000000074FFB000-memory.dmp

    Filesize

    5.7MB