Analysis

  • max time kernel
    122s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    28-01-2022 18:25

General

  • Target

    f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3.exe

  • Size

    162KB

  • MD5

    35229446728ec9bbeae1599c13e86d82

  • SHA1

    c759203d19d86540b6c1efa6eec6aab9ed25470d

  • SHA256

    f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3

  • SHA512

    597b3a0e315752ac24bcd11ea2992bdc6c47c575f6385b209a56065da35a074340aceb56f01d29e7486e84bf3cb124d3f00adff399cebca3cbfa219ebb2b5feb

Score
10/10

Malware Config

Signatures

  • AnchorDNS Backdoor

    A backdoor which communicates with C2 through DNS, attributed to the creators of Trickbot and Bazar.

  • Detected AnchorDNS Backdoor 2 IoCs

    Sample triggered yara rules associated with the AnchorDNS malware family.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 5 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3.exe
    "C:\Users\Admin\AppData\Local\Temp\f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Windows\SysWOW64\jixqfimx.exe
      C:\Windows\SysWOW64\jixqfimx.exe -i
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:1448
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C PowerShell "Start-Sleep 3; Remove-Item C:\Users\Admin\AppData\Local\Temp\f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:972
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        PowerShell "Start-Sleep 3; Remove-Item C:\Users\Admin\AppData\Local\Temp\f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:796
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c timeout 3 && del C:\Users\Admin\AppData\Local\Temp\f7278cd22070f0418ac75b599b8bcc524ee9d6adbda4103d149c9484cdaeb4f3.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:892

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/796-122-0x0000000004150000-0x0000000004186000-memory.dmp

    Filesize

    216KB

  • memory/796-123-0x0000000006D10000-0x0000000007338000-memory.dmp

    Filesize

    6.2MB

  • memory/796-125-0x0000000004332000-0x0000000004333000-memory.dmp

    Filesize

    4KB

  • memory/796-124-0x0000000004330000-0x0000000004331000-memory.dmp

    Filesize

    4KB

  • memory/796-126-0x0000000006BB0000-0x0000000006BD2000-memory.dmp

    Filesize

    136KB

  • memory/796-127-0x00000000074B0000-0x0000000007516000-memory.dmp

    Filesize

    408KB

  • memory/796-128-0x0000000007520000-0x0000000007586000-memory.dmp

    Filesize

    408KB

  • memory/796-129-0x0000000007590000-0x00000000078E0000-memory.dmp

    Filesize

    3.3MB

  • memory/796-130-0x0000000006C50000-0x0000000006C6C000-memory.dmp

    Filesize

    112KB

  • memory/796-131-0x0000000007D30000-0x0000000007D7B000-memory.dmp

    Filesize

    300KB

  • memory/796-132-0x0000000007BD0000-0x0000000007C46000-memory.dmp

    Filesize

    472KB

  • memory/796-139-0x00000000093D0000-0x0000000009A48000-memory.dmp

    Filesize

    6.5MB

  • memory/796-140-0x0000000008A80000-0x0000000008A9A000-memory.dmp

    Filesize

    104KB

  • memory/796-145-0x0000000008E70000-0x0000000008F04000-memory.dmp

    Filesize

    592KB

  • memory/796-146-0x0000000008A30000-0x0000000008A52000-memory.dmp

    Filesize

    136KB

  • memory/796-147-0x0000000009F50000-0x000000000A44E000-memory.dmp

    Filesize

    5.0MB