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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/12/2024, 00:04

General

  • Target

    64a29b19fb9379687b6b69cac545962c81e4caa890bae17642661a930ed76f53.exe

  • Size

    218KB

  • MD5

    d932bba837f02c210c4d1672ff74a85a

  • SHA1

    cff0cfc7a149bb4c7a4b3c7e64cf382cb4fada17

  • SHA256

    64a29b19fb9379687b6b69cac545962c81e4caa890bae17642661a930ed76f53

  • SHA512

    5403487369e8f259b79dcf96c2c8f16eba150f4a1c389680c35704faecd2d5f47e1ca2ac0fcf288397f986b841fa1af7eeb972e6e92e9e2fbeb5b1763fe1e057

  • SSDEEP

    3072:Uvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2Hq:i1SyAJp6rjn1gOObn4b6h9p

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\64a29b19fb9379687b6b69cac545962c81e4caa890bae17642661a930ed76f53.exe
    "C:\Users\Admin\AppData\Local\Temp\64a29b19fb9379687b6b69cac545962c81e4caa890bae17642661a930ed76f53.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:816
    • 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:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\01LB6K3J\login[2].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\3BEE.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\57D8.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\F13C.tmp

    Filesize

    1KB

    MD5

    3615ade82976313af7effeb3ed9971eb

    SHA1

    3b3b4f68dc485b6edc9960f29e64e64b5374291c

    SHA256

    b511c1a72b51b152f5b5f896ae1d0e5ec8ca7410ae2a7aadb9a621ee77cf49fb

    SHA512

    e0a8d7f4ae70d16c21e3579446092554faf4c98385f755317962d43025e66bff7ad6c4142b88f04960fe4023315fc1fd07e9ed05b3d1809d88d94049e4c489c0

  • C:\Users\Admin\AppData\Local\Temp\FB1C.tmp

    Filesize

    1KB

    MD5

    2ce0d8853d0af7a3b716a2ca54c4f865

    SHA1

    7108af8d8ffc867b3991400b6c887b313d809805

    SHA256

    828c03d26de2b412c47eb846a94896281ebdb0b9c7f6ec68f0308d45fe51d3de

    SHA512

    81351fa7ea0c9a8bf400919e6fd0c29fe65af67d16dd5e01d0891a68617fabaafaf540af928b81dabb2c537ad62021895701d5a2df5ebbc403d063ee5714b20a

  • C:\Users\Admin\AppData\Local\Temp\FB1F.tmp

    Filesize

    42KB

    MD5

    4620d95cda3cacd3b5f7e43299f0d826

    SHA1

    e879dda51e68e287faac42e34adbbe9d2f2239b8

    SHA256

    92c4c5a08a4013ff298bbf753eb980edfaaa7f9840cbb0b7dbcd11d68c72b444

    SHA512

    4a1a772d736b75c24adeed1c58070617196159d76e5fe6a1cad37bb1702d6f056214a1b64eabe246b4644442ab07013f69ac70a289a612e0a1a46c1e5f6b1b24

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    5863f30f639180b017f1ac69e2fc3d23

    SHA1

    5efb39d91230277fc3cb2cf7a7f19dd0bb40ba80

    SHA256

    d4beee7620c68cc8d4973b390ce0bfe1b707c29316a3a2569a049162db600d4d

    SHA512

    0a66a3adfe3ce7e19ea50ff2b3da339e715a4f332f94c1571884a2ba1abce7895db8ba4b0bb10bde8cb54f43c10be03ef02a8847b0d495d626536140de9f78d4

  • memory/816-0-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/816-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/816-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/816-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/816-16-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2816-73-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-66-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2816-28-0x0000000002390000-0x0000000002438000-memory.dmp

    Filesize

    672KB

  • memory/2816-26-0x0000000002390000-0x0000000002438000-memory.dmp

    Filesize

    672KB

  • memory/2816-24-0x0000000002390000-0x0000000002438000-memory.dmp

    Filesize

    672KB

  • memory/2816-22-0x0000000002390000-0x0000000002438000-memory.dmp

    Filesize

    672KB

  • memory/2816-32-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-34-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-36-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-38-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-48-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-84-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-83-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-82-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-81-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-80-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-78-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-77-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-76-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-75-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-74-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-20-0x0000000002390000-0x0000000002438000-memory.dmp

    Filesize

    672KB

  • memory/2816-72-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-71-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-70-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-69-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-68-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-67-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-30-0x0000000002390000-0x0000000002438000-memory.dmp

    Filesize

    672KB

  • memory/2816-65-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-64-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-62-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-61-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-60-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-59-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-58-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-57-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-56-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-55-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-54-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-53-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-52-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-51-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-50-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-49-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-47-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-46-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-45-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-79-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-44-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-63-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-43-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2816-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2816-42-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-41-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-40-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-39-0x0000000002540000-0x00000000025F6000-memory.dmp

    Filesize

    728KB