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Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/12/2024, 05:54

General

  • Target

    a92308d07e9cb0c6a2e7e0bb78a02dbc58f78e934f94466fce4352793f471339.exe

  • Size

    218KB

  • MD5

    69698cd366448a9e31fd6a68fb9b5d6a

  • SHA1

    7592e9b47ac50d1ae40676150d630bde0657a9b8

  • SHA256

    a92308d07e9cb0c6a2e7e0bb78a02dbc58f78e934f94466fce4352793f471339

  • SHA512

    cfbeb058340bf89755fb15e5e3a59b89394cd872c5f33cbe888b0dcc5b04b7d057cc7e81390d2decf1b10ce4651f9ea7a390136e23329e73109e0feddea010a6

  • SSDEEP

    3072:Kvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2Ha:c1SyAJp6rjn1gOObn4b6h9R

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\a92308d07e9cb0c6a2e7e0bb78a02dbc58f78e934f94466fce4352793f471339.exe
    "C:\Users\Admin\AppData\Local\Temp\a92308d07e9cb0c6a2e7e0bb78a02dbc58f78e934f94466fce4352793f471339.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:2184
    • 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:4880

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\321WJBEQ\login[4].htm

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GRYMSCZU\login[4].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\5BCC.tmp

    Filesize

    12KB

    MD5

    e1f035b24ce0e8137682b703d19315b5

    SHA1

    18712fd6ad888c146237d187332ccc904ff1f032

    SHA256

    117ea4f0f411e1aaeab307c087a57678abcba7e6aa96a5bd1f2d5d7026d453a0

    SHA512

    17a428fcea9d064e8318f0ef30da88c713209f5d591d2a4e9725d56663acdb96996569693804071aea17ddc793eade219409c4548e48d1ddc8814662236bae7d

  • C:\Users\Admin\AppData\Local\Temp\5BCC.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\7BFC.tmp

    Filesize

    1KB

    MD5

    dac8c23a361d92c9cebba8fba774b1cf

    SHA1

    86490f231e1fc808a3a00f098932f6b31b8e568a

    SHA256

    89130ca7e9ce93870500267f6ce382b8187055e07280d915bc2efc62f67b2646

    SHA512

    9691d952906f753ca0bc0b30fff4828dfc3eb5647af23d1f2b2fd6835fbfd50e5ce0e30ce9150b67a8f60f3511b2e2b7b2756d5f5b2bd0323ca83ae6807c4d66

  • C:\Users\Admin\AppData\Local\Temp\7C52.tmp

    Filesize

    61KB

    MD5

    e758c12f0c43ab4d83b154e8cb3062c1

    SHA1

    dabc6fadac21e4d9be44c5dbdcf7b64e0662ad0f

    SHA256

    d7303fa46ccc0f62e99dbe46893c340cbec3d07525f8733f45ee901bdddb55fa

    SHA512

    19ff6988059186bf4059c01ffa6da66a9e85e0d6d4fdba5793430abdb57a6c0ea3e4a23c9f9f29b7792108473c6df8a477f7a3a3a5193ce9198546bae2c0b2ca

  • C:\Users\Admin\AppData\Local\Temp\8C70.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

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

    Filesize

    61KB

    MD5

    8bcf3b15ab6353a47e0f87bfefeedf3f

    SHA1

    2706edc34971876525c35edf4cf3dd2046b2b661

    SHA256

    ed0d25d2870931d9859e35684ad481581daae2af20c8ccbf7cc6f66e8f8295ef

    SHA512

    7d2a412acb4dd3c0204fd2b786f06925256f3e9a330635c2e7471f004beb1699dbe1b4bd305c50bdc44d3c0c2f5861b842ee748683e00101f50fc2bfa9feeb23

  • C:\Users\Admin\AppData\Local\Temp\AD11.tmp

    Filesize

    42KB

    MD5

    5532a8b09b327cb15764852eb0c33a42

    SHA1

    7d0d94a65110ffddb9080c5b9310969dad74c651

    SHA256

    5a60ac66567b83780f016dc30bfdcc81a641a83a049c8ee8de1eae60ac892b29

    SHA512

    1a1262d541e7dbc4e98abd0b0dfda411c64ac45c0b1baf65fb9af4929e8546caaf66570d961fb4931949e02978d74b0dccd111c01feef5032974d36b99d6c8eb

  • C:\Users\Admin\AppData\Local\Temp\AD11.tmp

    Filesize

    42KB

    MD5

    cc57844a1a2b7f8d93f11203d15027c9

    SHA1

    4d7c15f7add82c849c10521224f4705e25a3d190

    SHA256

    5e3186b4f1b6eb5c96da8e46b0fc16ae318fe40b6763a7cc64de180860a7d9c4

    SHA512

    fe3eed55b9fcf6d31d80489c3cd49384176ba0d595d5c7d7a40887f5115b3765683941a39f2f6dba699a2ffa28ebc9f5ae3f7a5a89874781364b2f7faa524191

  • C:\Users\Admin\AppData\Local\Temp\BB13.tmp

    Filesize

    1KB

    MD5

    a26d099678e879249bc721ee68ad586d

    SHA1

    a2b98e4e215d376a1f2ce9a17ac65d8b949ecd94

    SHA256

    74c5863a9c59937f7ce1f9cb346149f5dba98f5df390ccfa3fcd694182d076e7

    SHA512

    bf02e83c3aae2966020ae79e5b6f5f27cb296ef8445e1f87ff55c51d0b81bcebd74ad8bd8194c4ee9c062d17a4ba115269a9e5032390c14bd9a21faacbdb85a0

  • C:\Windows\apppatch\svchost.exe

    Filesize

    218KB

    MD5

    6f73910f17d95c100fe658f63dcb6357

    SHA1

    75efb2a2c9a1a4b0d90731706fdaba8e82c15d71

    SHA256

    a7e2e2a2c4121002cef20f0129a592c84615dc2d9b8566913e5ede10d9c0a723

    SHA512

    dd19605597aa6e7deaf24ddf259b15b35048d9e2a11a40eb96803ba2e0172e3957645187509fcf28333efb753896bd545c1867034d0114f9d04d6195653a23bb

  • memory/2184-0-0x00000000022F0000-0x0000000002341000-memory.dmp

    Filesize

    324KB

  • memory/2184-12-0x00000000022F0000-0x0000000002341000-memory.dmp

    Filesize

    324KB

  • memory/2184-13-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2184-10-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2184-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4880-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-17-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/4880-16-0x00000000028D0000-0x0000000002978000-memory.dmp

    Filesize

    672KB

  • memory/4880-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/4880-14-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/4880-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4880-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB