Analysis

  • max time kernel
    132s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15-05-2021 13:35

General

  • Target

    b82f2c21851dbbc28c4140767828fbd0744dd78edf663972a445f16e746e3f73.exe

  • Size

    179KB

  • MD5

    c8b3199437ab28f48df03778f37902a6

  • SHA1

    cc77a38470b68e893d04e249dace3821cb6474d5

  • SHA256

    b82f2c21851dbbc28c4140767828fbd0744dd78edf663972a445f16e746e3f73

  • SHA512

    031bf40a1f91baf53665e1d102f37bc820dd47f63e18e0a88bb5b6a13ec76866fd0563cc7664efd53e0bb78f33c7e12fb26fb23fb4255ed2eebe7606c8c85570

Score
10/10

Malware Config

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Drops file in System32 directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b82f2c21851dbbc28c4140767828fbd0744dd78edf663972a445f16e746e3f73.exe
    "C:\Users\Admin\AppData\Local\Temp\b82f2c21851dbbc28c4140767828fbd0744dd78edf663972a445f16e746e3f73.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\b82f2c21851dbbc28c4140767828fbd0744dd78edf663972a445f16e746e3f73.exe
      --4d10b388
      2⤵
      • Suspicious behavior: RenamesItself
      PID:2056
  • C:\Windows\SysWOW64\relredist.exe
    "C:\Windows\SysWOW64\relredist.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\SysWOW64\relredist.exe
      --be6a9ba8
      2⤵
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      PID:3356

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1908-114-0x00000000005C0000-0x00000000005D1000-memory.dmp

    Filesize

    68KB

  • memory/1908-116-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2056-115-0x0000000000000000-mapping.dmp

  • memory/2056-117-0x0000000000430000-0x000000000057A000-memory.dmp

    Filesize

    1.3MB

  • memory/2056-118-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2764-121-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3356-120-0x0000000000000000-mapping.dmp

  • memory/3356-122-0x0000000000560000-0x00000000006AA000-memory.dmp

    Filesize

    1.3MB

  • memory/3356-123-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB