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Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18/12/2024, 01:32

General

  • Target

    50dbc6192179e984d356319d353415941c4d2d4ed7f1b3c64848a739e8e1a776.exe

  • Size

    217KB

  • MD5

    3583d86cabdbc125b4605800322f0922

  • SHA1

    7f4dfba958a651f858603ae4a4aa17477292e1ed

  • SHA256

    50dbc6192179e984d356319d353415941c4d2d4ed7f1b3c64848a739e8e1a776

  • SHA512

    ef9419655872268ee0040c43089ab6b4589969b63417e69fc46cfc8603448bc3837a3171be0536e44647e43576af49cdf6e8dfc65b98b7f73dcb8417f93b6322

  • SSDEEP

    6144:NrRaTyDOnlo7eM+mlkWgRXOqobzWjozm2ulYM6Y:9sTbzu1glovW4EH6Y

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\50dbc6192179e984d356319d353415941c4d2d4ed7f1b3c64848a739e8e1a776.exe
    "C:\Users\Admin\AppData\Local\Temp\50dbc6192179e984d356319d353415941c4d2d4ed7f1b3c64848a739e8e1a776.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:1740
    • 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:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\68CA.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\A95C.tmp

    Filesize

    1KB

    MD5

    e90f123d66d79fc1431818ee4a36a4f9

    SHA1

    93ff1a25de1eac168b90b329ba67641042542716

    SHA256

    f229987766b62e5bfe7126052ead6f91ac99796026716f39509faaf8d16d6cde

    SHA512

    c8ebdf7369cbde9671353ef09dca88f65c35fc35c74acc07fe5fc8701a1ef3cbf7f01f9781017b5ff2e65f436d57d10120659362f0354e52a88f0203ee05af40

  • C:\Users\Admin\AppData\Local\Temp\A9FE.tmp

    Filesize

    24KB

    MD5

    266372fcc9c0bea66f88cd0f32bd34af

    SHA1

    bbd7b6cccb5b7f41dd11e5591a8277e88e7a1902

    SHA256

    de83fe65a0bc2c9f8e315066b378b98db6f5162bd98616b9623c475d252fd126

    SHA512

    a7815e0c486c706e87fead3f189443106f717b2916c29f3eb1ee78766d41bf1cc7c5d905699cc88de8a54281f2e64e8ca485dd505bccb6392df76fee4f26948a

  • \Windows\AppPatch\svchost.exe

    Filesize

    217KB

    MD5

    0edbeaca581cd80bb1b23c68b4e3d509

    SHA1

    610dab59f956742967440cf9af2df10492d44f1e

    SHA256

    65f0bc5928e5a9d8dcb05418b8a65729080625eb52dd34700de653dbbf80bf3a

    SHA512

    e38d9fb48266886e74f9ac18503e25f3f02e9acff95cfacccebf0b8bebb318143ef1ab40f1d617916590ce7a0558a8700b73be245e9543020ceca0e7a650f017

  • memory/1740-0-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/1740-1-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/1740-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1740-19-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1740-18-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/1740-15-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/3000-73-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-68-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-28-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/3000-32-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/3000-30-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/3000-33-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/3000-27-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/3000-24-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/3000-23-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/3000-34-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-36-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-38-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-48-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-60-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-84-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-83-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-82-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-81-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-80-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-79-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-78-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-77-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-75-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-74-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-17-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/3000-72-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-71-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-70-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-69-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-21-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/3000-67-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-66-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-65-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-64-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-62-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-61-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-59-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-58-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-57-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-56-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-55-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-54-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-53-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-52-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-51-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-50-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-49-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-47-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-45-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-44-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-43-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-76-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-42-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-41-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-63-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-40-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-46-0x0000000002500000-0x00000000025B6000-memory.dmp

    Filesize

    728KB

  • memory/3000-20-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB