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Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2025, 07:09

General

  • Target

    b02a3da2e4f3a56290e31ca3319e7f2a390ea336df34d9225178d67d9c03fad4.exe

  • Size

    218KB

  • MD5

    6c16927895f35a9154cad0689dcc2261

  • SHA1

    18fad5793b94e99395091990e9d80ea56776e055

  • SHA256

    b02a3da2e4f3a56290e31ca3319e7f2a390ea336df34d9225178d67d9c03fad4

  • SHA512

    e503f896db12cb9e916cdb73936efdaa5c609133744bc0d8a6cabcdcd8002b84c812d7a49b4376c2387b95ff84b55b7cfdd87d60b763d10eb71d637aa97f8fd9

  • SSDEEP

    3072:9vm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:x1SyAJp6rjn1gOObn4b6h9h

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\b02a3da2e4f3a56290e31ca3319e7f2a390ea336df34d9225178d67d9c03fad4.exe
    "C:\Users\Admin\AppData\Local\Temp\b02a3da2e4f3a56290e31ca3319e7f2a390ea336df34d9225178d67d9c03fad4.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:2284
    • 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:2840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Q4648X1K\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\408B.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\BC48.tmp

    Filesize

    42KB

    MD5

    3d3960c19083f6ba61b0ce2499c8f99e

    SHA1

    1a3725c6a25784a0ec061891c9527d855d7ad68a

    SHA256

    5d25c6b51c7c4c67fe328406418d5e948834fbb63f27848d177e30cec16322d0

    SHA512

    da3c513f76ecd840dad63c86a5f99dd5a2cb71d36a3ef71fd8d6a26a42ef6d07498dbaef9ed86b709591d05eb9081831ab944a0ed6a8b13c16ba561be6e95ad3

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    92a2dfe9fc3adc9885091eeb9ebc06a6

    SHA1

    e533fe2a57ee6d01c410523b5f3464933ef7e483

    SHA256

    475a2ec71de29500c6e866542126ceeb2e58a842029e56e253cfa3428663d827

    SHA512

    8cdda2e4db30678d614ebacc0b653b8e17c55c9626577a2c6e095bb9d3c981068ffe13d21433062c73ab51d71fb44da55cbd0c5a9e4a5b87cc27de3704b1c383

  • memory/2284-0-0x0000000000300000-0x0000000000351000-memory.dmp

    Filesize

    324KB

  • memory/2284-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2284-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2284-16-0x0000000000300000-0x0000000000351000-memory.dmp

    Filesize

    324KB

  • memory/2284-14-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2840-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2840-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2840-20-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2840-30-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2840-28-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2840-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2840-26-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2840-23-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2840-24-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2840-36-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-34-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-32-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-45-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-49-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-83-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-82-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-81-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-80-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-79-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-78-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-77-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-76-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-75-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-74-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-73-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-72-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-71-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-69-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-68-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-67-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-66-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-65-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-64-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-63-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-62-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-61-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-60-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-59-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-58-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-57-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-55-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-54-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-53-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-52-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-51-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-50-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-48-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-47-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-46-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-44-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-84-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-43-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-42-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-70-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-41-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-40-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-38-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-56-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB

  • memory/2840-39-0x0000000002590000-0x0000000002646000-memory.dmp

    Filesize

    728KB