Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    08-05-2024 01:13

General

  • Target

    0a8357cb9a1d348d1c4b4ec101f2328fd43f976803bcc360525ced55fbb9aeaf.exe

  • Size

    349KB

  • MD5

    b9773393891d9cc471cd58cac09052dd

  • SHA1

    784a14954c7abca7d7e2e92c60b93557238426f4

  • SHA256

    0a8357cb9a1d348d1c4b4ec101f2328fd43f976803bcc360525ced55fbb9aeaf

  • SHA512

    72a669e736ecfc5422a07542e15cad7d82b9ae41591f4c375e31fa4dc2d70f620b44ff19b5b6d0928aac3cf244a3143af433d47eeaa3c5c6b9968cf71d1e6848

  • SSDEEP

    6144:Dqv0Ib3JJzx1MfjF+N33l3+YBVYjZ7eZH9PJWweK/ojy8Kkc2ivFt+0P:Gb3TEbF+13NPYd6B9lcdFBsPP

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

Version

9.4

Botnet

ad7dbf02afc50b46afd33ddc12f41082

C2

https://steamcommunity.com/profiles/76561199680449169

https://t.me/r1g1o

Attributes
  • profile_id_v2

    ad7dbf02afc50b46afd33ddc12f41082

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 OPR/101.0.0.0

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Detect ZGRat V1 1 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 1 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 7 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 7 IoCs
  • Detects executables containing potential Windows Defender anti-emulation checks 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a8357cb9a1d348d1c4b4ec101f2328fd43f976803bcc360525ced55fbb9aeaf.exe
    "C:\Users\Admin\AppData\Local\Temp\0a8357cb9a1d348d1c4b4ec101f2328fd43f976803bcc360525ced55fbb9aeaf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2044
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:2380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 1500
          3⤵
          • Program crash
          PID:600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

      Filesize

      1KB

      MD5

      a266bb7dcc38a562631361bbf61dd11b

      SHA1

      3b1efd3a66ea28b16697394703a72ca340a05bd5

      SHA256

      df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

      SHA512

      0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

      Filesize

      242B

      MD5

      39787200fcec6d08f43e6e95fce4ad47

      SHA1

      0cdd6bc2aeb8fed2afc5d5a05d76def1bf51dc5d

      SHA256

      fc7f14e743411f29bd6cf0f4315c30e75bd5d429617cd5477610b7cd07bed825

      SHA512

      d3f78c68269d620afc4402fe5bda6bbb80331db04d1906d1b47aca4349a7d9f9e46f718d0bb85e538ebfcfc3ac751f4023932c9e162684b009906ee46b59998c

    • C:\Users\Admin\AppData\Local\Temp\TarCC2.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • memory/2208-1-0x0000000001270000-0x00000000012CC000-memory.dmp

      Filesize

      368KB

    • memory/2208-4-0x0000000074440000-0x0000000074B2E000-memory.dmp

      Filesize

      6.9MB

    • memory/2208-16-0x0000000074440000-0x0000000074B2E000-memory.dmp

      Filesize

      6.9MB

    • memory/2208-0-0x000000007444E000-0x000000007444F000-memory.dmp

      Filesize

      4KB

    • memory/2208-22-0x0000000074440000-0x0000000074B2E000-memory.dmp

      Filesize

      6.9MB

    • memory/2380-5-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2380-10-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-7-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-17-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-11-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-14-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-20-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-21-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-9-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

    • memory/2380-172-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB