Analysis

  • max time kernel
    104s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-01-2025 22:24

General

  • Target

    a183714cadc7007dfe180fadebcfe540bcde05f0aad589e133524e05ac15679b.exe

  • Size

    355KB

  • MD5

    af8b52a8a5c8da84c54d57cbbb04a0a9

  • SHA1

    d7757c927f2e081f8ac94011b41e620f93f0359c

  • SHA256

    a183714cadc7007dfe180fadebcfe540bcde05f0aad589e133524e05ac15679b

  • SHA512

    cb4c6accb96743043ee8399fd65ca239fde718e06ced00aecf906097e8edb897aa5732f63468754346d3dc34cbabbe0de1b8e21ff1e94f838d1cf0e075d95b5b

  • SSDEEP

    6144:igEmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiF:EmWhND9yJz+b1FcMLmp2ATTSsdF

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\a183714cadc7007dfe180fadebcfe540bcde05f0aad589e133524e05ac15679b.exe
    "C:\Users\Admin\AppData\Local\Temp\a183714cadc7007dfe180fadebcfe540bcde05f0aad589e133524e05ac15679b.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:4184
    • 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:3340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\login[5].htm

    Filesize

    168B

    MD5

    d57e3a550060f85d44a175139ea23021

    SHA1

    2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

    SHA256

    43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

    SHA512

    0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JAZ6MGFU\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JAZ6MGFU\login[1].htm

    Filesize

    42KB

    MD5

    bf6cd33a0c1abadba057f569f51da4dc

    SHA1

    a3a683078958f4e1d3ce67f02ec26665e157c73f

    SHA256

    d6450a9620b5506de7c776e8f0e0d8f07e8ad8894e4633764eea3358c61f9b42

    SHA512

    8bd218aaac933cb93db282f5a577a2f5a8ed33b558f18e0c60d2be96960b50534e7ff26584545feb056a5987ce85ca5d925eb9c64af5ff4169944956bac7c9d5

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JAZ6MGFU\login[2].htm

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\4020.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

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

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\53F3.tmp

    Filesize

    42KB

    MD5

    14344d47f2fd9eb4933fdd4f42f8bc1c

    SHA1

    a0a5c0a70d06f1909ed5c1859cfc5b67fc215494

    SHA256

    300b0fba997ff554b6b0e2bfb5100ae4b6bca2e455efc7a6a7f9b5f989c73496

    SHA512

    16cf54f82619af9973ba13be9c50850369f2366bff05b7d04b1aafea307f68c97e14f4711295d468f1b86e809a666b5167efb48fe0a9fd3c98c88865aaf228ed

  • C:\Users\Admin\AppData\Local\Temp\8A21.tmp

    Filesize

    61KB

    MD5

    34f7e572c2b6578978fe76d157dc8265

    SHA1

    3d29a00746c7835cb8f35c730eabd1edf852b1bc

    SHA256

    c9aec0b426d563e3f0352ccb139999a65e76e919a02ab413073e0144a79fa558

    SHA512

    857570f1220c5cc3311f6597e325f95de14cde115b546b48c586d823e44d9e6db5e3e5213f63651cdc694b185d7acbb4d40173264403b590a3b167ca13f85995

  • C:\Windows\apppatch\svchost.exe

    Filesize

    355KB

    MD5

    61d1d0f421386eedb604cd66c3fd8c4c

    SHA1

    a547042804f311c823311e71f1ea5a5e3df8cef3

    SHA256

    e74e750a72a533d01b3a37e2cecc07f7556db69f0b34f9a4da96551b323304e0

    SHA512

    3c3e7d1f6aeb8058ce00892b49cb4097138ca0a744d3f8d0bde09d9f5a7f23e04d8eb97ba97c72a7ae1b7a3e0ad81847bea42fcd9e522d01a65f89c20c5ec6f5

  • memory/3340-45-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-37-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-40-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-71-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-73-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-72-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-70-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-69-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-67-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-66-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-65-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-64-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-63-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-62-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-60-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-59-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-57-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-55-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-53-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-49-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-47-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-46-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-68-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-17-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-44-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-42-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-39-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-19-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-36-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-34-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-33-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-32-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-31-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-30-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-29-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-27-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-26-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-25-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-24-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-22-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-21-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-43-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-20-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-41-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-38-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-35-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-28-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-16-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-14-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-13-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-10-0x0000000003060000-0x0000000003108000-memory.dmp

    Filesize

    672KB

  • memory/3340-23-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-18-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/3340-298-0x0000000003500000-0x00000000035B6000-memory.dmp

    Filesize

    728KB

  • memory/4184-9-0x0000000000720000-0x000000000077F000-memory.dmp

    Filesize

    380KB