Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 08:31

General

  • Target

    0131bdf1f89cf6012dcb9f71659437b0abe41d707201a8a148e4adbfd5eb2beeN.exe

  • Size

    204KB

  • MD5

    b2935c07bf5bfb4548a3463cbbc21850

  • SHA1

    c896e8c79b1ca68dfbb75a09f83e85712e13919c

  • SHA256

    0131bdf1f89cf6012dcb9f71659437b0abe41d707201a8a148e4adbfd5eb2bee

  • SHA512

    b802133007e5ce3a7d73a1ca079b690b10a0bd38d9b36da80886f7663b3a6bc71afb00d6eae3ed1dd787ad5bdcc61846576f963454e91908e17f28c56a74a2dc

  • SSDEEP

    3072:U5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlAg:ULexkuRaX41xoyJV65gzyZko+ucZ

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\0131bdf1f89cf6012dcb9f71659437b0abe41d707201a8a148e4adbfd5eb2beeN.exe
    "C:\Users\Admin\AppData\Local\Temp\0131bdf1f89cf6012dcb9f71659437b0abe41d707201a8a148e4adbfd5eb2beeN.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:2116
    • 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:2372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\01LB6K3J\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\E576.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • \Windows\AppPatch\svchost.exe

    Filesize

    204KB

    MD5

    8e1f070af64dd3d00dc7dff92447733d

    SHA1

    fe85e836e5a92dee84ab8fc6c281c4c3eb0a52ac

    SHA256

    6d9dc3c9d24b42775283a6131070f5d99ac1ded16e338a620df8f02c3b2e6b60

    SHA512

    2b20963687c7e7c521a7f1263d478ee43de95b91382cf3b8d4ecf97ab98b6ff74e6ddf57c18de07298c8e763c47b54832f1100efb376ba1ce4fbf6cda94c1c9f

  • memory/2116-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2116-1-0x0000000002170000-0x00000000021C1000-memory.dmp

    Filesize

    324KB

  • memory/2116-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2116-20-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2116-19-0x0000000002170000-0x00000000021C1000-memory.dmp

    Filesize

    324KB

  • memory/2116-18-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2372-76-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-69-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-21-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2372-26-0x0000000002790000-0x0000000002838000-memory.dmp

    Filesize

    672KB

  • memory/2372-32-0x0000000002790000-0x0000000002838000-memory.dmp

    Filesize

    672KB

  • memory/2372-30-0x0000000002790000-0x0000000002838000-memory.dmp

    Filesize

    672KB

  • memory/2372-33-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2372-28-0x0000000002790000-0x0000000002838000-memory.dmp

    Filesize

    672KB

  • memory/2372-24-0x0000000002790000-0x0000000002838000-memory.dmp

    Filesize

    672KB

  • memory/2372-22-0x0000000002790000-0x0000000002838000-memory.dmp

    Filesize

    672KB

  • memory/2372-34-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-38-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-36-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-45-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-46-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-84-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-83-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-82-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-81-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-80-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-79-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-78-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-77-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-16-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2372-75-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-74-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-73-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-71-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-70-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2372-68-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-67-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-66-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-65-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-64-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-63-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-62-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-61-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-60-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-59-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-58-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-56-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-55-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-54-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-53-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-52-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-51-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-50-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-49-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-48-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-47-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-44-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-72-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-43-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-57-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-42-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-41-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB

  • memory/2372-40-0x0000000002940000-0x00000000029F6000-memory.dmp

    Filesize

    728KB