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Analysis

  • max time kernel
    132s
  • 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
    18/12/2024, 02:42

General

  • Target

    870012d834ee7146d3221ec976e816dd76420f55151d32faea79107cb1ca7e2e.exe

  • Size

    355KB

  • MD5

    3f14f5f3463221269c23e37f50c8a2c4

  • SHA1

    0408dc4449926a31e7fcc7b8f6c3b516f3bb61b4

  • SHA256

    870012d834ee7146d3221ec976e816dd76420f55151d32faea79107cb1ca7e2e

  • SHA512

    5dd24520198b54ad8edb0a773117c1fb1619a2dd51e81572c37dbe53987200609fe9909ba80373710f4d12067e173488f07dc53fb4e4cdd7e5f5ef6bb7b8bd6b

  • SSDEEP

    6144:MgEmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Ei3:OmWhND9yJz+b1FcMLmp2ATTSsd3

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\870012d834ee7146d3221ec976e816dd76420f55151d32faea79107cb1ca7e2e.exe
    "C:\Users\Admin\AppData\Local\Temp\870012d834ee7146d3221ec976e816dd76420f55151d32faea79107cb1ca7e2e.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:4724
    • 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:4860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\P2UT3MS5\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\2FEC.tmp

    Filesize

    12KB

    MD5

    e1f035b24ce0e8137682b703d19315b5

    SHA1

    18712fd6ad888c146237d187332ccc904ff1f032

    SHA256

    117ea4f0f411e1aaeab307c087a57678abcba7e6aa96a5bd1f2d5d7026d453a0

    SHA512

    17a428fcea9d064e8318f0ef30da88c713209f5d591d2a4e9725d56663acdb96996569693804071aea17ddc793eade219409c4548e48d1ddc8814662236bae7d

  • C:\Users\Admin\AppData\Local\Temp\2FEC.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\442E.tmp

    Filesize

    61KB

    MD5

    8358238cbaa9d00b1cf38629dd7d21c6

    SHA1

    081c173a05272f0260088e47011383e60ae8f51a

    SHA256

    6d383d3b29ebf3e54e6d875c5a91e833717762fb22a3c82363345914ea7f26ba

    SHA512

    909a4cdc0153ae8fd0e77ef1c2851278613b2b9af9715b083ccacda3f1e17679b323c15e191fd1e6415be8d0b39b3b11b94735c08fa8dfcaff13336c9a6faa40

  • C:\Users\Admin\AppData\Local\Temp\68B9.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\7CE5.tmp

    Filesize

    61KB

    MD5

    97b4258ce893b835d9dde0d75a33da43

    SHA1

    f15d206f026a3e2a56ef0f4429a265a0c7ce2c8e

    SHA256

    c65d5f59a4396cb2e4ba2a2be72f5cfd78e6dd7b83fcaef7ac7cb3865c6cfd3d

    SHA512

    ec78581109488177a88c6d2918df7d9a9b1e495a576adf6d96b23535c55d4c3325fadafc3928cdde89ad45bcd2a83b478484628dba22f518854684eead3a431a

  • C:\Users\Admin\AppData\Local\Temp\7D08.tmp

    Filesize

    42KB

    MD5

    1ef64206e42608a9ba35c11620e4c8f8

    SHA1

    252b7cb15bdd432f8ef87629d3ec98213ca29a29

    SHA256

    4b990fd0108b56df5d2d4cbbf9c8e9108eeb7015a00d3052ada9166042494140

    SHA512

    cbe1ce657b9ef3c5dcffcb226e7c347b15b16475e2c219433d3b1a862e36ac6e06f124251438524be1b3fb5f0bd7420ce104bed70188afa731a508acc8dcd952

  • C:\Users\Admin\AppData\Local\Temp\7D08.tmp

    Filesize

    42KB

    MD5

    3626b41910c45d65ee5082ab3816dcc6

    SHA1

    7d645c33a1b511cb7e9ef56bf82d28947602ff8f

    SHA256

    a67405e4f3775f800851a74399c5b0933740e5c4b48860d2179b3b527be804f0

    SHA512

    989729a7d926bafd539e8920efa9131e9c83c03e0450f6708c920a79bd728839040d9099743434b22fca1af4c029f93f11178f2463803cfdbe29c0951f227dae

  • C:\Users\Admin\AppData\Local\Temp\A3F6.tmp

    Filesize

    1KB

    MD5

    e75bbeda92f9651294a9798d3da4ce24

    SHA1

    468c3cd9e27029216c6a84b72d4ed09777462be3

    SHA256

    ab1ac88257215f138ad6d66bfdfb6e4fa6310112fe3e63fea50f8b3d591adc5d

    SHA512

    f54724eb91de56c91b689d7244a7e66e943938fa0dc8aa3771a8ca968565fd48611bb5f8d1c6011b27bbf50caab3f718dd3a45f3bbd890c7ac428230902a4fa2

  • C:\Windows\apppatch\svchost.exe

    Filesize

    355KB

    MD5

    5f6aa5e0d88c87d8eb1804ea6a6a0c1a

    SHA1

    4e212f1a43a652fb6554967a21bd960b26f66270

    SHA256

    a606fd2992a56bf0d1a811e72ff7516f0b98be260fa0666cbf0b0bae7b452919

    SHA512

    63e3c3d825afaac4fb6956528e5b2fd2e64c26e85c6d95cfd18e19925de617dc261d929cf3af7581a3ce7e424731a386f05bdb6aa29bf29d69ce0b2465398746

  • memory/4724-9-0x0000000000550000-0x00000000005AF000-memory.dmp

    Filesize

    380KB

  • memory/4860-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-19-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-21-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-17-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-15-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-16-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-13-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-10-0x0000000002910000-0x00000000029B8000-memory.dmp

    Filesize

    672KB

  • memory/4860-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4860-307-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB