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Analysis

  • max time kernel
    103s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 18:27

General

  • Target

    c8ba0112619292496a9a215c20f4a066fb55affcef2986fda6ce362f01d776a7N.exe

  • Size

    1.7MB

  • MD5

    579d02b475ee87a3be795ffb4e12e3b0

  • SHA1

    8aea2393bd67b4d2f4153693714a8d06b6a12566

  • SHA256

    c8ba0112619292496a9a215c20f4a066fb55affcef2986fda6ce362f01d776a7

  • SHA512

    6e4f61eca66356da00bd860137c8035d01c0a81b2fd619434c2e7666be07a1127d0d7fa0ccb05b32998b78a85548c8d89258fe6ea7e485cabb092c1f7ab602cd

  • SSDEEP

    24576:/mUNJyJqb1FcMap2ATT5rmUNJyJqb1FcMapgmUNJyJqb1FcMap2ATT5rmUNJyJqo:/mV2AprmVgmV2AprmVgmV2AprmVG

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\c8ba0112619292496a9a215c20f4a066fb55affcef2986fda6ce362f01d776a7N.exe
    "C:\Users\Admin\AppData\Local\Temp\c8ba0112619292496a9a215c20f4a066fb55affcef2986fda6ce362f01d776a7N.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:1512
    • 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:3328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\6AB0.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\6AB0.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\77F3.tmp

    Filesize

    61KB

    MD5

    72eaf2737acac7afec59449b0be47495

    SHA1

    d0191b1bd25458f315f9b24c7e1fb8a17ab46726

    SHA256

    12c29d61514fa7a0e8b3fa3472ebee7af1f8a2fdddda95ce9929e0ef8bcde8ef

    SHA512

    9d92edeffc5f823012d4a95881552bea1596e8eeab8c16b58e9cdeabf3e9e1763d9ed36a647429952fadfba9bf0c0a34163223db5cdc235aadd3e0fe8394b3fe

  • C:\Users\Admin\AppData\Local\Temp\7815.tmp

    Filesize

    24KB

    MD5

    cf9e30d272275e0d26c174cd358da9d7

    SHA1

    7b3aec8d70ae52b39bf0b43247c9431222087799

    SHA256

    5fc06c94717b628344c888de556f6517525564877a5f263cc9333bbd8a9781fb

    SHA512

    b171b471a7c91098864c0df1c14af6ea6b17b6d5d58544cdf6604d9fc8a52dec5a876c58da8256f04737d7a9172f4b2eb6427c1a925ffecf47c898f7c6bee921

  • C:\Users\Admin\AppData\Local\Temp\7886.tmp

    Filesize

    100KB

    MD5

    59348d8b8d1dc45cbc0f84d6650948c3

    SHA1

    ae71de6b200860258d9d4208c5de410c67b53dc7

    SHA256

    5dfbf1c0f2396c6e790249c43686e7a48938083d95d6f6538c0b14e7a92eaf92

    SHA512

    223d566d984dc31fbfb08c3f2c7a824461fc9216a02a4c1792d368f544274ba4fcb12962f87bc0559826f67a18a503efdec2e9884bb36022d8fd618c86c5f732

  • C:\Windows\apppatch\svchost.exe

    Filesize

    1.7MB

    MD5

    1ca7510b2faacf936e42dfef7d84fc16

    SHA1

    ec371d5842474aea9426cc274a75bbcac5c58a14

    SHA256

    c6f5d5e479939b9eaa2e7a604c392a02b10a6947acdd6e51329b41e73791a410

    SHA512

    5b039fe51479ee25b30dc25bb1b5b755f1a3dd8a860715abb553132967e2e292368aee23f056a05f0d42cc5cf010a3cb72c3a4b8a6d6cca7e66f244691aa8504

  • memory/1512-9-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/3328-49-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-44-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-13-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-23-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-21-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-72-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-71-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-70-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-69-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-68-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-67-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-65-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-64-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-63-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-62-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-61-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-60-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-59-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-58-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-57-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-56-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-55-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-54-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-53-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-52-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-51-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-11-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-47-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-48-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-46-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-45-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-15-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-43-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-42-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-41-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-40-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-39-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-38-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-36-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-35-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-33-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-32-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-31-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-29-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-28-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-27-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-26-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-25-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-24-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-20-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-19-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-18-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-17-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-66-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-50-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-37-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-10-0x0000000002710000-0x00000000027B8000-memory.dmp

    Filesize

    672KB

  • memory/3328-34-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-30-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-22-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-16-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB

  • memory/3328-302-0x0000000002B00000-0x0000000002BB6000-memory.dmp

    Filesize

    728KB