Analysis

  • max time kernel
    146s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 16:45

General

  • Target

    c76e1dc0b8436bd1dfb05c050fb5fd7c890c031088b0698377e0a50c556f01d8.exe

  • Size

    454KB

  • MD5

    ff5102331f070d44be63a3446d9a583a

  • SHA1

    5df265bdd7f9302ef089b5c03183f3c6ecf11a56

  • SHA256

    c76e1dc0b8436bd1dfb05c050fb5fd7c890c031088b0698377e0a50c556f01d8

  • SHA512

    4d25a03b35f745d6a3f512add819cfd312aa42598bac555cb781e8621ae01b4111d83a67f2c69ab6b3c640517d5ae533bb19de201561edb7cf12774bc7a2c00e

  • SSDEEP

    12288:2iB9S1zi63i/LYjQogh7cz3EP4Fn4IWneiS6f:2irSI63iTYkogh4DlKrf

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.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 4 IoCs

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

  • Executes dropped EXE 3 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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c76e1dc0b8436bd1dfb05c050fb5fd7c890c031088b0698377e0a50c556f01d8.exe
    "C:\Users\Admin\AppData\Local\Temp\c76e1dc0b8436bd1dfb05c050fb5fd7c890c031088b0698377e0a50c556f01d8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Local\Temp\u298.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u298.0.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FCFBGIDAEH.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4780
        • C:\Users\Admin\AppData\Local\Temp\FCFBGIDAEH.exe
          "C:\Users\Admin\AppData\Local\Temp\FCFBGIDAEH.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3012
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\FCFBGIDAEH.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3136
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:4476
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1392 -s 2384
        3⤵
        • Program crash
        PID:1724
    • C:\Users\Admin\AppData\Local\Temp\u298.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u298.1.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:3624
      • 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:448
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 984
      2⤵
      • Program crash
      PID:4496
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2924 -ip 2924
    1⤵
      PID:1196
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1392 -ip 1392
      1⤵
        PID:4496

      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\FCFBGIDAEH.exe

        Filesize

        106KB

        MD5

        fe380780b5c35bd6d54541791151c2be

        SHA1

        7fe3a583cf91474c733f85cebf3c857682e269e1

        SHA256

        b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

        SHA512

        ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

      • C:\Users\Admin\AppData\Local\Temp\u298.0.exe

        Filesize

        312KB

        MD5

        12d374f5d55dc469aee06c9cd50e9e61

        SHA1

        8e3af58dcf5c3da96b4c984d94b2ce19c6fef1eb

        SHA256

        fd91ac27792d0f75969dbba3bfa91ec6aa025bdf4b3f2e5e35bc7b22551e14d7

        SHA512

        f6b56036a0383e17bde7e6563b0a1316bd650ec6e1836584e72e647b1de22728602b180e885e10c6dc9390aa7d12bdfa78574781466a2c5301674317143e5408

      • C:\Users\Admin\AppData\Local\Temp\u298.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/448-188-0x000001AECAF30000-0x000001AECAF80000-memory.dmp

        Filesize

        320KB

      • memory/448-205-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-207-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-204-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-168-0x000001AECAA50000-0x000001AECAD50000-memory.dmp

        Filesize

        3.0MB

      • memory/448-206-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-203-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-202-0x00007FFFF1C10000-0x00007FFFF26D1000-memory.dmp

        Filesize

        10.8MB

      • memory/448-200-0x000001AECAFB0000-0x000001AECAFCE000-memory.dmp

        Filesize

        120KB

      • memory/448-199-0x000001AECAF80000-0x000001AECAFA2000-memory.dmp

        Filesize

        136KB

      • memory/448-194-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-145-0x00007FFFF1C10000-0x00007FFFF26D1000-memory.dmp

        Filesize

        10.8MB

      • memory/448-146-0x000001AEAC3D0000-0x000001AEAFCC8000-memory.dmp

        Filesize

        57.0MB

      • memory/448-147-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-189-0x000001AECAEE0000-0x000001AECAEEC000-memory.dmp

        Filesize

        48KB

      • memory/448-152-0x000001AECA540000-0x000001AECA650000-memory.dmp

        Filesize

        1.1MB

      • memory/448-154-0x000001AECA160000-0x000001AECA16C000-memory.dmp

        Filesize

        48KB

      • memory/448-153-0x000001AECA140000-0x000001AECA150000-memory.dmp

        Filesize

        64KB

      • memory/448-155-0x000001AECA150000-0x000001AECA164000-memory.dmp

        Filesize

        80KB

      • memory/448-157-0x000001AECA3C0000-0x000001AECA3E4000-memory.dmp

        Filesize

        144KB

      • memory/448-158-0x000001AECA3F0000-0x000001AECA3FA000-memory.dmp

        Filesize

        40KB

      • memory/448-162-0x000001AECA8F0000-0x000001AECA952000-memory.dmp

        Filesize

        392KB

      • memory/448-164-0x000001AECA0E0000-0x000001AECA0EA000-memory.dmp

        Filesize

        40KB

      • memory/448-161-0x000001AECA870000-0x000001AECA8EA000-memory.dmp

        Filesize

        488KB

      • memory/448-160-0x000001AECA790000-0x000001AECA842000-memory.dmp

        Filesize

        712KB

      • memory/448-159-0x000001AECA840000-0x000001AECA86A000-memory.dmp

        Filesize

        168KB

      • memory/448-163-0x000001AECA9D0000-0x000001AECAA46000-memory.dmp

        Filesize

        472KB

      • memory/448-177-0x000001AECAEB0000-0x000001AECAEBA000-memory.dmp

        Filesize

        40KB

      • memory/448-174-0x000001AECAE90000-0x000001AECAE98000-memory.dmp

        Filesize

        32KB

      • memory/448-175-0x000001AECADD0000-0x000001AECAE08000-memory.dmp

        Filesize

        224KB

      • memory/448-176-0x000001AECADA0000-0x000001AECADAE000-memory.dmp

        Filesize

        56KB

      • memory/448-178-0x000001AECAEC0000-0x000001AECAEE2000-memory.dmp

        Filesize

        136KB

      • memory/448-180-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-181-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-179-0x000001AEB0080000-0x000001AEB0090000-memory.dmp

        Filesize

        64KB

      • memory/448-185-0x000001AED0160000-0x000001AED0688000-memory.dmp

        Filesize

        5.2MB

      • memory/1392-123-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/1392-190-0x0000000002D40000-0x0000000002E40000-memory.dmp

        Filesize

        1024KB

      • memory/1392-30-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/1392-27-0x0000000002D40000-0x0000000002E40000-memory.dmp

        Filesize

        1024KB

      • memory/1392-173-0x0000000000400000-0x0000000002B79000-memory.dmp

        Filesize

        39.5MB

      • memory/1392-37-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1392-28-0x0000000002D10000-0x0000000002D37000-memory.dmp

        Filesize

        156KB

      • memory/2924-2-0x0000000004930000-0x000000000499C000-memory.dmp

        Filesize

        432KB

      • memory/2924-35-0x0000000000400000-0x0000000002B9C000-memory.dmp

        Filesize

        39.6MB

      • memory/2924-1-0x0000000002E90000-0x0000000002F90000-memory.dmp

        Filesize

        1024KB

      • memory/2924-3-0x0000000000400000-0x0000000002B9C000-memory.dmp

        Filesize

        39.6MB

      • memory/2924-36-0x0000000004930000-0x000000000499C000-memory.dmp

        Filesize

        432KB

      • memory/3012-193-0x0000000072680000-0x0000000072E30000-memory.dmp

        Filesize

        7.7MB

      • memory/3012-198-0x0000000072680000-0x0000000072E30000-memory.dmp

        Filesize

        7.7MB

      • memory/3012-195-0x0000000004980000-0x0000000004990000-memory.dmp

        Filesize

        64KB

      • memory/3012-192-0x0000000000070000-0x0000000000090000-memory.dmp

        Filesize

        128KB

      • memory/3624-23-0x00000000027F0000-0x00000000027F1000-memory.dmp

        Filesize

        4KB

      • memory/3624-124-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3624-144-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB