Analysis

  • max time kernel
    134s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 19:48

General

  • Target

    b13a7231aad0e6cb3ba549fdca63791d1b0c43ba9d348ed07061547f6793f722.exe

  • Size

    373KB

  • MD5

    ce7f021ef1d1a462aca03e99eb50b5d4

  • SHA1

    afc83a8ff6a0d2697d0ea7879e5798ad37192355

  • SHA256

    b13a7231aad0e6cb3ba549fdca63791d1b0c43ba9d348ed07061547f6793f722

  • SHA512

    d2a752e7b2883854e98519d807d115f584b55c094b159e42f25a4fb9e0c57eac44404dffa3a42e3bb1a0c749d198216196d7462d68fdc5abf90575371e585a90

  • SSDEEP

    6144:AgXLk9lsA7WNFchU6wxpMoyZVn4lt2DSTZATjxhNUP2uxZ698Obd3Tuto1:AgXLk91ar1rKRn4lAQ+1hNUOr9HxuS1

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 26 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\b13a7231aad0e6cb3ba549fdca63791d1b0c43ba9d348ed07061547f6793f722.exe
    "C:\Users\Admin\AppData\Local\Temp\b13a7231aad0e6cb3ba549fdca63791d1b0c43ba9d348ed07061547f6793f722.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:368
    • C:\Users\Admin\AppData\Local\Temp\ua8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\ua8.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 336
        3⤵
        • Program crash
        PID:2476
    • C:\Users\Admin\AppData\Local\Temp\ua8.1.exe
      "C:\Users\Admin\AppData\Local\Temp\ua8.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3956
      • 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:624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 1468
      2⤵
      • Program crash
      PID:3716
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 368 -ip 368
    1⤵
      PID:3712
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1704 -ip 1704
      1⤵
        PID:4536

      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\ua8.0.exe

        Filesize

        231KB

        MD5

        6d6e316e6aff81b70218dbb96f2b34e0

        SHA1

        e320424a38cfd7b83473a59c948c4e937c881ee0

        SHA256

        13acc2397bc1d50a9d679443eb7def41878ce745433da8b4f52f5e59635183e0

        SHA512

        f800059686ac9f2ce1eaa04034787f07dd06a718da5a16d0205b5264cc96cf2a9b965c9566b5849194f14b255da8c0cf737a60266e92f142f2a64a884979c519

      • C:\Users\Admin\AppData\Local\Temp\ua8.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/368-2-0x00000000041D0000-0x000000000423C000-memory.dmp

        Filesize

        432KB

      • memory/368-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/368-12-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/368-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/368-29-0x00000000041D0000-0x000000000423C000-memory.dmp

        Filesize

        432KB

      • memory/368-28-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/368-1-0x00000000026F0000-0x00000000027F0000-memory.dmp

        Filesize

        1024KB

      • memory/624-155-0x00000129422F0000-0x0000012942328000-memory.dmp

        Filesize

        224KB

      • memory/624-144-0x000001293DF90000-0x000001293E290000-memory.dmp

        Filesize

        3.0MB

      • memory/624-172-0x000001293E2B0000-0x000001293E2CE000-memory.dmp

        Filesize

        120KB

      • memory/624-129-0x000001291ECC0000-0x00000129224F4000-memory.dmp

        Filesize

        56.2MB

      • memory/624-132-0x00000129241A0000-0x00000129241AC000-memory.dmp

        Filesize

        48KB

      • memory/624-131-0x0000012924180000-0x0000012924190000-memory.dmp

        Filesize

        64KB

      • memory/624-130-0x000001293DCF0000-0x000001293DDFA000-memory.dmp

        Filesize

        1.0MB

      • memory/624-134-0x0000012924200000-0x0000012924224000-memory.dmp

        Filesize

        144KB

      • memory/624-133-0x0000012924190000-0x00000129241A4000-memory.dmp

        Filesize

        80KB

      • memory/624-136-0x000001293D970000-0x000001293D99A000-memory.dmp

        Filesize

        168KB

      • memory/624-135-0x0000012924220000-0x000001292422A000-memory.dmp

        Filesize

        40KB

      • memory/624-138-0x000001293DF40000-0x000001293DF90000-memory.dmp

        Filesize

        320KB

      • memory/624-137-0x000001293DB30000-0x000001293DBE2000-memory.dmp

        Filesize

        712KB

      • memory/624-139-0x000001293D9E0000-0x000001293DA02000-memory.dmp

        Filesize

        136KB

      • memory/624-140-0x0000012924230000-0x000001292423A000-memory.dmp

        Filesize

        40KB

      • memory/624-165-0x00000129432C0000-0x0000012943336000-memory.dmp

        Filesize

        472KB

      • memory/624-154-0x00000129429B0000-0x00000129429B8000-memory.dmp

        Filesize

        32KB

      • memory/624-156-0x00000129422C0000-0x00000129422CE000-memory.dmp

        Filesize

        56KB

      • memory/624-164-0x00000129431E0000-0x00000129431EC000-memory.dmp

        Filesize

        48KB

      • memory/624-159-0x0000012943480000-0x00000129434E2000-memory.dmp

        Filesize

        392KB

      • memory/624-160-0x00000129434E0000-0x0000012943502000-memory.dmp

        Filesize

        136KB

      • memory/624-158-0x0000012943460000-0x000001294346A000-memory.dmp

        Filesize

        40KB

      • memory/624-157-0x00000129422E0000-0x00000129422E8000-memory.dmp

        Filesize

        32KB

      • memory/624-161-0x0000012943A30000-0x0000012943F58000-memory.dmp

        Filesize

        5.2MB

      • memory/1704-50-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/1704-52-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1704-166-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/1704-174-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/3956-51-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3956-128-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB