Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-01-2025 04:32

General

  • Target

    91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5.exe

  • Size

    204KB

  • MD5

    85db3282fe3af41e53d7bccf98349fb7

  • SHA1

    8b394f238ab5adfa0e11d476482d2d0496c9af20

  • SHA256

    91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5

  • SHA512

    0da92335af0190c2ad635c93046ef68709551dbdc47eacd4df1fbfe2a54f8dd120ce8881cc3d9b76a7523bc9bf0f91b22d8a2406b206d084878385d7fbe347f0

  • SSDEEP

    3072:65u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlAQ:6LexkuRaX41xoyJV65gzyZko+uc

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
  • 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5.exe
    "C:\Users\Admin\AppData\Local\Temp\91c8584cfea584eafc34c1cc68383e691aa190b5c6a85433236cce1fff96e4c5.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:3596
    • 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:4164

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\HOI3BGS3\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\78D4.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\85CF.tmp

    Filesize

    61KB

    MD5

    5ffe12d6f8da0967a0e4c10cef81f8ad

    SHA1

    78cfcbf9f7fcfc8463e121d0fa0fa91146c05acd

    SHA256

    ea86b06838bc1261d57aa7432745dc5966185a24b60efb3c620499cf7cc87801

    SHA512

    bb57083612cf105031751d908804bfda0343005589226f97b74012ac738a8f341868a0c056ba97e9ee49491809720016a2d2a6a27b9c69380c42359a4fad0a5b

  • C:\Users\Admin\AppData\Local\Temp\865D.tmp

    Filesize

    42KB

    MD5

    f8b11abbe3255e401121fe0e36b08ada

    SHA1

    7bd03d704d2235b959b918391723e983d85f2840

    SHA256

    085451948bf0dd98b71b48003ff9a7431408b63d32909735b8ee3f6b5d123163

    SHA512

    79ad985d68a67967664cb0472bf32e6f9c65135f05a9472e597b419acae1ccc2a939607200e1671015b338905a76286307a9b04b679375b3db60b55158c4c75c

  • C:\Users\Admin\AppData\Local\Temp\865D.tmp

    Filesize

    42KB

    MD5

    f632e70253cb1aa9bc3cdcbcef1b5f74

    SHA1

    d23791fe1bbd0ca4f07c84974eb9e494cc242d10

    SHA256

    02685787b7d65b673c82512e4fe8fd383e2c29d9cf25fce901e4d628b808b319

    SHA512

    acfbfe0ba5a47872417f9b40b592aff47d3c92067fc90ff135fc0895b5455e559f31d80cc20980de55aa72fa92fe99d8fe32a7adfb3e1e86222b569d4ddfa466

  • C:\Windows\apppatch\svchost.exe

    Filesize

    204KB

    MD5

    22b59c54c1d6489269aecbafd1216f39

    SHA1

    119e2b80936fb6156a174c2da25d09548deac49e

    SHA256

    f3deda836a82b9771aea64ed363606400219a4f61b5af6d8c606ddeaf5fa4635

    SHA512

    5810c4d49f2ecd7a47e460842dba726886869e402c89ae5dd792cb33994aca3f8003e65421f6a9bd544ea098efbf1925563325e32d93aaf49fa2a8b11ba19cf2

  • memory/3596-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/3596-1-0x0000000002300000-0x0000000002351000-memory.dmp

    Filesize

    324KB

  • memory/3596-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/3596-14-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/3596-16-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/3596-15-0x0000000002300000-0x0000000002351000-memory.dmp

    Filesize

    324KB

  • memory/4164-59-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-51-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-22-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-24-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-43-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-45-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-79-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-78-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-77-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-76-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-74-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-73-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-72-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-71-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-70-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-69-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-68-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-67-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-66-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-65-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-64-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-63-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-62-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-61-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-19-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/4164-58-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-56-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-55-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-54-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-53-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-52-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-20-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-50-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-48-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-47-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-46-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-44-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-42-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-41-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-40-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-39-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-38-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-37-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-36-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-35-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-34-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-30-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-32-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-31-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-29-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-28-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-27-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-26-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-75-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-60-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-57-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-49-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-33-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/4164-18-0x0000000002B40000-0x0000000002BE8000-memory.dmp

    Filesize

    672KB

  • memory/4164-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/4164-13-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/4164-12-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/4164-25-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB