Analysis

  • max time kernel
    127s
  • max time network
    130s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-05-2024 19:16

General

  • Target

    914c2af2d5c575323b46ed31026eb016450572f62afe75e6dc423b6a1e748a9c.exe

  • Size

    373KB

  • MD5

    a0f3154083f101335b900d8821f0e4ca

  • SHA1

    578e175005d9699152e034048a7f5fb6312f713c

  • SHA256

    914c2af2d5c575323b46ed31026eb016450572f62afe75e6dc423b6a1e748a9c

  • SHA512

    3c9d292803f1f43e5be83827cce93c358260ff269a84b80e75756338d7d356f2534c9ecf821f6f3b5f07651bce43b2e3249a869aa7540a3e4e18c63b4447992a

  • SSDEEP

    6144:DK2ul+mZXWya9UFvz+7bqk8nhiA6YfftkMgxhwt6XC35kPyM33TCIFbl:DK2ulHZmL9UF7DhiL4lqaj35kTJVl

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\914c2af2d5c575323b46ed31026eb016450572f62afe75e6dc423b6a1e748a9c.exe
    "C:\Users\Admin\AppData\Local\Temp\914c2af2d5c575323b46ed31026eb016450572f62afe75e6dc423b6a1e748a9c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5104
    • C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2996
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 2508
        3⤵
        • Program crash
        PID:2528
    • C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4228
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 1156
      2⤵
      • Program crash
      PID:3852
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5104 -ip 5104
    1⤵
      PID:3572
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2996 -ip 2996
      1⤵
        PID:556

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Are.docx

        Filesize

        11KB

        MD5

        a33e5b189842c5867f46566bdbf7a095

        SHA1

        e1c06359f6a76da90d19e8fd95e79c832edb3196

        SHA256

        5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

        SHA512

        f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe

        Filesize

        231KB

        MD5

        90f9f97c4296b827df58180287f86b04

        SHA1

        591461d9aa9ecbc23d37f34bb8208fd68cd4dd07

        SHA256

        28cb8c1d64da50157b1cee0f85ecbb3bea6568cf4aa2c062dd437185b2cb8d0d

        SHA512

        15eab19013a48d473ddd34f4a2dc11676aa2da8d3abe2f73b461753f302ef631dc6da9aa13e7b568fb492b7870497328eb3fe2e5f7b3cfe7d2ec902bd6c34cff

      • C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2996-153-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/2996-114-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/2996-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3384-130-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4228-145-0x000002B159230000-0x000002B15925A000-memory.dmp

        Filesize

        168KB

      • memory/4228-155-0x000002B15D6A0000-0x000002B15D6D8000-memory.dmp

        Filesize

        224KB

      • memory/4228-146-0x000002B159300000-0x000002B159322000-memory.dmp

        Filesize

        136KB

      • memory/4228-144-0x000002B159280000-0x000002B1592D0000-memory.dmp

        Filesize

        320KB

      • memory/4228-165-0x000002B15E180000-0x000002B15E1F6000-memory.dmp

        Filesize

        472KB

      • memory/4228-136-0x000002B13AF10000-0x000002B13E744000-memory.dmp

        Filesize

        56.2MB

      • memory/4228-137-0x000002B158FD0000-0x000002B1590DA000-memory.dmp

        Filesize

        1.0MB

      • memory/4228-139-0x000002B140540000-0x000002B14054C000-memory.dmp

        Filesize

        48KB

      • memory/4228-138-0x000002B140520000-0x000002B140530000-memory.dmp

        Filesize

        64KB

      • memory/4228-140-0x000002B140530000-0x000002B140544000-memory.dmp

        Filesize

        80KB

      • memory/4228-141-0x000002B1405A0000-0x000002B1405C4000-memory.dmp

        Filesize

        144KB

      • memory/4228-142-0x000002B1405D0000-0x000002B1405DA000-memory.dmp

        Filesize

        40KB

      • memory/4228-143-0x000002B158F00000-0x000002B158FB2000-memory.dmp

        Filesize

        712KB

      • memory/4228-164-0x000002B15DDA0000-0x000002B15DDAC000-memory.dmp

        Filesize

        48KB

      • memory/4228-166-0x000002B15E0E0000-0x000002B15E0FE000-memory.dmp

        Filesize

        120KB

      • memory/4228-161-0x000002B15E360000-0x000002B15E888000-memory.dmp

        Filesize

        5.2MB

      • memory/4228-147-0x000002B13EC40000-0x000002B13EC4A000-memory.dmp

        Filesize

        40KB

      • memory/4228-151-0x000002B159330000-0x000002B159630000-memory.dmp

        Filesize

        3.0MB

      • memory/4228-160-0x000002B15DE10000-0x000002B15DE32000-memory.dmp

        Filesize

        136KB

      • memory/4228-154-0x000002B15D720000-0x000002B15D728000-memory.dmp

        Filesize

        32KB

      • memory/4228-156-0x000002B15D670000-0x000002B15D67E000-memory.dmp

        Filesize

        56KB

      • memory/4228-157-0x000002B15D690000-0x000002B15D698000-memory.dmp

        Filesize

        32KB

      • memory/4228-159-0x000002B15DDB0000-0x000002B15DE12000-memory.dmp

        Filesize

        392KB

      • memory/4228-158-0x000002B15DD90000-0x000002B15DD9A000-memory.dmp

        Filesize

        40KB

      • memory/5104-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5104-1-0x0000000002650000-0x0000000002750000-memory.dmp

        Filesize

        1024KB

      • memory/5104-28-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5104-27-0x00000000042B0000-0x000000000431C000-memory.dmp

        Filesize

        432KB

      • memory/5104-2-0x00000000042B0000-0x000000000431C000-memory.dmp

        Filesize

        432KB

      • memory/5104-26-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB