Analysis

  • max time kernel
    150s
  • max time network
    179s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 18:29

General

  • Target

    fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe

  • Size

    860KB

  • MD5

    9151c34c96dd3a6486ec43b1b8372a93

  • SHA1

    be436a3167378f43f9c2be84bc52105ae2ff90e4

  • SHA256

    fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b

  • SHA512

    ec7ae9b8ce48567732673e3ff043f1d839ecef9dd6d1740fb996e3b5326c4673d0e799cca2cbc9c40ddc9fd6d1aae5cb1f16e426d09e3fd02b9b90040e074f5f

  • SSDEEP

    24576:uBaZdgmCHm37z+q/t5wkW4BvUhjMjddqe/:WaZamCHmrz+qFax4BvUNMjddz

Score
8/10

Malware Config

Signatures

  • ASPack v2.12-2.42 4 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe
    "C:\Users\Admin\AppData\Local\Temp\fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\FFF8C5~1.EXE > nul
      2⤵
      • Deletes itself
      PID:1716
  • C:\Windows\SysWOW64\pieirq.exe
    C:\Windows\SysWOW64\pieirq.exe
    1⤵
    • Executes dropped EXE
    PID:1740

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\pieirq.exe

    Filesize

    860KB

    MD5

    9151c34c96dd3a6486ec43b1b8372a93

    SHA1

    be436a3167378f43f9c2be84bc52105ae2ff90e4

    SHA256

    fff8c5ce703ada0e1d25c9e21554ddfe269b56cd8e2c44fea3c194bf93aaed4b

    SHA512

    ec7ae9b8ce48567732673e3ff043f1d839ecef9dd6d1740fb996e3b5326c4673d0e799cca2cbc9c40ddc9fd6d1aae5cb1f16e426d09e3fd02b9b90040e074f5f

  • memory/1740-59-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1740-60-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1788-54-0x0000000076711000-0x0000000076713000-memory.dmp

    Filesize

    8KB

  • memory/1788-55-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB