Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2024 20:37

General

  • Target

    4edc3bb0bef41f8c37a51fdb1fb024da9483b3da6e6dd72fd18602282516e84bN.exe

  • Size

    218KB

  • MD5

    c670b2d0a92ea4d6225eda5537f68d90

  • SHA1

    a0e9ee842936d860d4b41928c8befc41bb18c4f5

  • SHA256

    4edc3bb0bef41f8c37a51fdb1fb024da9483b3da6e6dd72fd18602282516e84b

  • SHA512

    a7dc63532e9bad6af1cc76538f0a41ae71beaf78caf1c3fdf69c7a93be4542876d5a28026a2e17c9ef441aaca6ab3b20b2ca2f3281cd801f79dcc4c58c06a760

  • SSDEEP

    6144:DEQBDdO1z7L/EIhZDE9oLfFWlMZT7+DGaMwIC:DEGDdQNHEwWlMxYG/wI

Malware Config

Extracted

Family

simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4edc3bb0bef41f8c37a51fdb1fb024da9483b3da6e6dd72fd18602282516e84bN.exe
    "C:\Users\Admin\AppData\Local\Temp\4edc3bb0bef41f8c37a51fdb1fb024da9483b3da6e6dd72fd18602282516e84bN.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\B400.tmp

    Filesize

    42KB

    MD5

    3247256740935eae5ff4593edfb5fe27

    SHA1

    40f277dba61424c0663d4fd603013334f22f8e03

    SHA256

    df4632fc912c20a6722c0a915d4058def7ae00e193d682c7c2a030f4b21375d9

    SHA512

    103d1a4b844278d9058aaa0777ffbce078381bc37fee731918a6f680f36a5784b437e9ed875caf24a2e18db4b2f7a44fa594ad5861d673fdcf7111078201c74d

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    dd2ee085b68fe32a572d8160f45bd02f

    SHA1

    c67719fa9c686238238a3bfc80305995ec0e0cf2

    SHA256

    ca7f52100af441bc275f46e461e1b7bea93a7328d94e7ac65386436ae816fdf9

    SHA512

    5f851c0cd1e9d1fdf30ca12e5b0e6fe4ee92982e635f4dc6f5837d3b035250c8328ce7bea1b68a13e676ec1d3355bffa33fbcc9203e4df27df62c72aeb9a7e82

  • memory/1656-0-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/1656-1-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/1656-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1656-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1656-17-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/1656-16-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2488-19-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2488-20-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2488-21-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2488-26-0x0000000002300000-0x00000000023A8000-memory.dmp

    Filesize

    672KB

  • memory/2488-32-0x0000000002300000-0x00000000023A8000-memory.dmp

    Filesize

    672KB

  • memory/2488-33-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2488-30-0x0000000002300000-0x00000000023A8000-memory.dmp

    Filesize

    672KB

  • memory/2488-28-0x0000000002300000-0x00000000023A8000-memory.dmp

    Filesize

    672KB

  • memory/2488-24-0x0000000002300000-0x00000000023A8000-memory.dmp

    Filesize

    672KB

  • memory/2488-22-0x0000000002300000-0x00000000023A8000-memory.dmp

    Filesize

    672KB

  • memory/2488-34-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-38-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-36-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-40-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-48-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-71-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-84-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-83-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-82-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-81-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-80-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-79-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-78-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-77-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-76-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-75-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-74-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-73-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-72-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-70-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-69-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-68-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-67-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-65-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-64-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-63-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-62-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-61-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-60-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-59-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-58-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-57-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-56-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-55-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-54-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-53-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-51-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-50-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-49-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-47-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-66-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-46-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-45-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-44-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-43-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-42-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-52-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2488-41-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB