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Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2025, 01:31

General

  • Target

    ad8fc7607da8aac6a0a0f302f1d9408cc989ae177f4d1b1a4dd3091514b2731dN.exe

  • Size

    212KB

  • MD5

    72105d40f2e420df61201392508bf660

  • SHA1

    3fcd87cb78a9ed2efed4d37c49fafd092675b3a5

  • SHA256

    ad8fc7607da8aac6a0a0f302f1d9408cc989ae177f4d1b1a4dd3091514b2731d

  • SHA512

    325d4475de9a3f9705de18726936cdc5d59d97b441988123a20a7cdbf3d9327ec095c2344f0d57e66649d9fdaca077be6a135e2de2e4c2b501f5982fa8a7c8a5

  • SSDEEP

    6144:Iob34ERMS/H7YAVsobrVn5G4E3Hi96mbQzJWFO8Omw4GZ:XboEj/8ASWM4Ki96/zqIKGZ

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\ad8fc7607da8aac6a0a0f302f1d9408cc989ae177f4d1b1a4dd3091514b2731dN.exe
    "C:\Users\Admin\AppData\Local\Temp\ad8fc7607da8aac6a0a0f302f1d9408cc989ae177f4d1b1a4dd3091514b2731dN.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:2556
    • 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:2004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\B8D6.tmp

    Filesize

    24KB

    MD5

    79101c934a0f2cdd73923db8812459ef

    SHA1

    c0bb5628bf5d41c28838c16793a307262dc9ac10

    SHA256

    4874d9c0ad4c73953865bbcd181947901782310dc50a299655737248acf1b0cc

    SHA512

    5a8501b21c2222baffbbf4c7449a751b90aac0623cd1560a72c5358f609d41df3918e08e746c29fc5a6eee5fa9b3e9ff077118279ee052666e07ca7cea526d5e

  • \Windows\AppPatch\svchost.exe

    Filesize

    212KB

    MD5

    69008d9f3a41dbce70c2142484128269

    SHA1

    4c2305ddcc6b8b4dae19db642827910faafa4508

    SHA256

    9ba60bc81ad6a07a86d015ca761b7b1d7e576699265034a702c0a05fec6f0d62

    SHA512

    8e3964cbfa426bc75cc6bd2988de7cc8636564da65b73193f3e737462fa21a572c1dd0cda82fdfdc46c4738dc9b1c13eaa6a389279ada575a3fb846cdaca8bd3

  • memory/2004-70-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-67-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-22-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2004-19-0x0000000000400000-0x00000000005BA000-memory.dmp

    Filesize

    1.7MB

  • memory/2004-40-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-26-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2004-32-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2004-30-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2004-33-0x0000000000400000-0x00000000005BA000-memory.dmp

    Filesize

    1.7MB

  • memory/2004-28-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2004-24-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2004-34-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-38-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-36-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-47-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-52-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-84-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-83-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-82-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-81-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-80-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-79-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-78-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-77-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-76-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-75-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-74-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-73-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-72-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-71-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-21-0x0000000000400000-0x00000000005BA000-memory.dmp

    Filesize

    1.7MB

  • memory/2004-20-0x0000000000400000-0x00000000005BA000-memory.dmp

    Filesize

    1.7MB

  • memory/2004-59-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-69-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-65-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-64-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-63-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-62-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-61-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-60-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-68-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-58-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-57-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-56-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-55-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-54-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-53-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-51-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-50-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-49-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-48-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-46-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-45-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-44-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-43-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-66-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-42-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2004-41-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2556-1-0x0000000000250000-0x00000000002A1000-memory.dmp

    Filesize

    324KB

  • memory/2556-0-0x0000000000400000-0x00000000005BA000-memory.dmp

    Filesize

    1.7MB

  • memory/2556-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2556-15-0x0000000000400000-0x00000000005BA000-memory.dmp

    Filesize

    1.7MB

  • memory/2556-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2556-16-0x0000000000250000-0x00000000002A1000-memory.dmp

    Filesize

    324KB