Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/12/2024, 21:23

General

  • Target

    afc87222a8a6ab2f6b7ce383d21ece826ac4010c0aea87d0946bc33c2f32c54f.exe

  • Size

    218KB

  • MD5

    dde3b9a436e9d4720e735678762c0a9e

  • SHA1

    a48856866ac183fa4a3d703cce8d4849c6bf0421

  • SHA256

    afc87222a8a6ab2f6b7ce383d21ece826ac4010c0aea87d0946bc33c2f32c54f

  • SHA512

    d6d339131b43bde1a7cf23d1de11d15b710e242116fa1191b607a3185eccf94b394f855f406e5cc6ccf186c4150995f3539f5f366a6a181e763664ac2b00cd5d

  • SSDEEP

    3072:Uvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2Ha:i1SyAJp6rjn1gOObn4b6h9x

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\afc87222a8a6ab2f6b7ce383d21ece826ac4010c0aea87d0946bc33c2f32c54f.exe
    "C:\Users\Admin\AppData\Local\Temp\afc87222a8a6ab2f6b7ce383d21ece826ac4010c0aea87d0946bc33c2f32c54f.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:2924
    • 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:2676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\17C6.tmp

    Filesize

    42KB

    MD5

    f81d9b1d379e3987466df3ac1bfb384f

    SHA1

    320de498aeb7843a84bde78f0ca4ea6a43019b2b

    SHA256

    a016344ca3783d6d81866af853bd9761b52478a5e9afae6a01aaa4d5849837c0

    SHA512

    9594028a32a43b865dbdca2fc53743bf072fbe41e2d86b45948a4f1a32fd3063be1ee6aba2be09ef5f7c3831df7b9734fc6e4bd4ffbc3cad09580767ab9cca92

  • C:\Users\Admin\AppData\Local\Temp\185B.tmp

    Filesize

    1KB

    MD5

    0c9dcbddfa1c0295e7ae06332e3e3903

    SHA1

    7dbe68f9f77ed2785fd18606c3c3124ab3250788

    SHA256

    23a6a024319a97577d1cc32e160c1e2ffa9bf0cb25f09c298806b01aebb9736b

    SHA512

    98dec85090c264b9f2231cf06ad926449b6080ad646ac580b1e2d4de96a1834471a4b795088bdd872b83ca90fc81a189e012c58a32bc0d86193c81f9dd5e4521

  • C:\Users\Admin\AppData\Local\Temp\932E.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\9330.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Windows\apppatch\svchost.exe

    Filesize

    218KB

    MD5

    b726c77ad287cbcd34802ede80a54ba9

    SHA1

    d4e17fe15df2a0701a16ef992583ce3034164615

    SHA256

    ab3f1de18c6105768b118d8f0efcbf07fbdca1290512919c6f36d667dd24becd

    SHA512

    5cc72eada0db9d73d9cdb8214249b4bc67209f7dd18c9638b5e68016d278a0997c9ba3a8dfc97a7d4f2c83c1be511be716f8dbaaef8cd7eb1c0d34da5d1fa0ce

  • memory/2676-84-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-83-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-82-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-81-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-80-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-79-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-78-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-77-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-76-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-75-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-74-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-73-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-72-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-70-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-69-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-68-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-67-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-66-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-65-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-64-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-63-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-62-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-61-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-60-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-59-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-57-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-56-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-55-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-54-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-53-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-52-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-51-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-50-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-49-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-48-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-47-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-45-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-44-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-43-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-42-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-71-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-41-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-40-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-39-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-58-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-46-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-38-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-36-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-34-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-32-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2676-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2676-30-0x0000000000630000-0x00000000006D8000-memory.dmp

    Filesize

    672KB

  • memory/2676-28-0x0000000000630000-0x00000000006D8000-memory.dmp

    Filesize

    672KB

  • memory/2676-26-0x0000000000630000-0x00000000006D8000-memory.dmp

    Filesize

    672KB

  • memory/2676-24-0x0000000000630000-0x00000000006D8000-memory.dmp

    Filesize

    672KB

  • memory/2676-22-0x0000000000630000-0x00000000006D8000-memory.dmp

    Filesize

    672KB

  • memory/2676-20-0x0000000000630000-0x00000000006D8000-memory.dmp

    Filesize

    672KB

  • memory/2676-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2676-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2924-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2924-16-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2924-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2924-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2924-0-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB