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Analysis

  • max time kernel
    115s
  • 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, 08:47

General

  • Target

    eb8a91ecc3cf351c35e4b6730560ab65ee6aa21aae527a223fc6f4607aaa3a58N.exe

  • Size

    218KB

  • MD5

    31015808ef52cbd72858c42a669c1c30

  • SHA1

    bb119bec9246accca880047fc9534125932c61ca

  • SHA256

    eb8a91ecc3cf351c35e4b6730560ab65ee6aa21aae527a223fc6f4607aaa3a58

  • SHA512

    88c1738429ef2d3c0d9fd4f3808ba6dc9748081b3a0d0a0416e56995ddadc56aaa318f68d2ed5af67e924e230b1d3a54e5ba63fdc4f5d94d7ee48c93cdb6291a

  • SSDEEP

    3072:Dvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:71SyAJp6rjn1gOObn4b6h9h

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\eb8a91ecc3cf351c35e4b6730560ab65ee6aa21aae527a223fc6f4607aaa3a58N.exe
    "C:\Users\Admin\AppData\Local\Temp\eb8a91ecc3cf351c35e4b6730560ab65ee6aa21aae527a223fc6f4607aaa3a58N.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:2316
    • 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:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\2408.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\8D81.tmp

    Filesize

    1KB

    MD5

    3b103449b2dc44b5b91b16988c2832d1

    SHA1

    7e2bfaa96290fdd42c5e77ba85ed50aa0f1450d4

    SHA256

    d837d434c3303151f0b06e7d83c0f1796fa412b20acdc46f15f0bf3451cd6821

    SHA512

    f991145c6d183d06c8837faa63adfbcff2ac15918e9e166d82e8423570dca949b281ec2edb5b09fdc82eba3bc354b997974a7c9de32607fac9f927264e2ca893

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    c3073b59419c6ec508064485cc414a0c

    SHA1

    9758c6c09febe1043f3945b13dc635bf87589e36

    SHA256

    70cb8407b2599aacfe16c0f57a56f1b9ff3437ba7104bc7af3d5cb6667bb1661

    SHA512

    0fa6ceb652488c54e7141eea50dcbebc5e196a4b42a906183e55095857031fae7ed95dee2b64f97a95f2303d969c496204aade0d0232e39679af1f857ad2adf8

  • memory/2316-0-0x00000000002B0000-0x0000000000301000-memory.dmp

    Filesize

    324KB

  • memory/2316-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2316-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2316-16-0x00000000002B0000-0x0000000000301000-memory.dmp

    Filesize

    324KB

  • memory/2316-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2748-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2748-19-0x00000000020B0000-0x0000000002158000-memory.dmp

    Filesize

    672KB

  • memory/2748-21-0x00000000020B0000-0x0000000002158000-memory.dmp

    Filesize

    672KB

  • memory/2748-30-0x00000000020B0000-0x0000000002158000-memory.dmp

    Filesize

    672KB

  • memory/2748-28-0x00000000020B0000-0x0000000002158000-memory.dmp

    Filesize

    672KB

  • memory/2748-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2748-26-0x00000000020B0000-0x0000000002158000-memory.dmp

    Filesize

    672KB

  • memory/2748-24-0x00000000020B0000-0x0000000002158000-memory.dmp

    Filesize

    672KB

  • memory/2748-22-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2748-32-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-34-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-36-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-40-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-38-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-46-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-84-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-83-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-82-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-80-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-79-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-78-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-77-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-76-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-75-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-74-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-73-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-72-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-71-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-70-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-69-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-68-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-67-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-65-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-64-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-63-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-62-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-61-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-60-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-59-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-58-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-57-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-56-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-55-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-54-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-53-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-52-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-51-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-50-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-49-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-47-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-45-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-44-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-81-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-43-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-66-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-42-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-41-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-48-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB

  • memory/2748-39-0x0000000002550000-0x0000000002606000-memory.dmp

    Filesize

    728KB