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Analysis

  • max time kernel
    125s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/07/2023, 09:21

General

  • Target

    a8cb59d12bb69bexeexeexeex.exe

  • Size

    90KB

  • MD5

    a8cb59d12bb69b9dce2d237e43127ad0

  • SHA1

    d6702e55a96793c0037cb2d416836bf0b0b0ba04

  • SHA256

    aaf31b2a241706a5f2dc50cb4993da803c60970cc12746eb3ce14ef45a725459

  • SHA512

    16c86989fdf8521055e4d23667a199a0f8a775f79648039d49c70f355ab309b8f69ff3b14e8cb8ebabc7fcc10b7187dde817af4d8b73c7f4f312e288b3368339

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjuv4:zCsanOtEvwDpjg

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8cb59d12bb69bexeexeexeex.exe
    "C:\Users\Admin\AppData\Local\Temp\a8cb59d12bb69bexeexeexeex.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:448
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    91KB

    MD5

    b09ee306e8e88328cff2c5a13f10d7a8

    SHA1

    33399f709d03de69ac69b3b3a93c385651d8d844

    SHA256

    ea0245f64aaaca703a864621e277a16595987f0b2243b4edbbf704a901826107

    SHA512

    19346fa48d654577cf67aec75344fa287bcfbebfda3a9ccd2fb3d0a4519104bff1539d5b9c6b310af1ab3c2ce2238b76c9998aed31972498ee809a569c8e8d46

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

    Filesize

    91KB

    MD5

    b09ee306e8e88328cff2c5a13f10d7a8

    SHA1

    33399f709d03de69ac69b3b3a93c385651d8d844

    SHA256

    ea0245f64aaaca703a864621e277a16595987f0b2243b4edbbf704a901826107

    SHA512

    19346fa48d654577cf67aec75344fa287bcfbebfda3a9ccd2fb3d0a4519104bff1539d5b9c6b310af1ab3c2ce2238b76c9998aed31972498ee809a569c8e8d46

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

    Filesize

    91KB

    MD5

    b09ee306e8e88328cff2c5a13f10d7a8

    SHA1

    33399f709d03de69ac69b3b3a93c385651d8d844

    SHA256

    ea0245f64aaaca703a864621e277a16595987f0b2243b4edbbf704a901826107

    SHA512

    19346fa48d654577cf67aec75344fa287bcfbebfda3a9ccd2fb3d0a4519104bff1539d5b9c6b310af1ab3c2ce2238b76c9998aed31972498ee809a569c8e8d46

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/448-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/448-134-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/448-135-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/448-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4472-151-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/4472-157-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB