Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-04-2024 12:45

General

  • Target

    b67bd7a7c352167da426620126385a34bfa4673efbc8397a1b2d36d6704a9051.exe

  • Size

    410KB

  • MD5

    5c0fa38042ee03672a7ad861148e6d88

  • SHA1

    102f15bdc924fd625c7c3f14a25819b119ddc5a9

  • SHA256

    b67bd7a7c352167da426620126385a34bfa4673efbc8397a1b2d36d6704a9051

  • SHA512

    6df23b9f53b37133c227cdf5e6792e44f6ee58a85aedc93e1fa46e9e495a56e3f110f9a24cd6ac4ca062f98089bf56c1e3a52ac8b37c220a2a94e55e5eb28234

  • SSDEEP

    6144:f/BLpm6tS99lyeglUI5rYdpWr9vcQM848uADTqufNZpZzJPWqNX:f/BLpm6slywIpSwhvfM8JuADT9uqNX

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\b67bd7a7c352167da426620126385a34bfa4673efbc8397a1b2d36d6704a9051.exe
    "C:\Users\Admin\AppData\Local\Temp\b67bd7a7c352167da426620126385a34bfa4673efbc8397a1b2d36d6704a9051.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1300
    • C:\Users\Admin\AppData\Local\Temp\u104.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u104.0.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:1576
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKJJEBKKEH.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5028
        • C:\Users\Admin\AppData\Local\Temp\BKJJEBKKEH.exe
          "C:\Users\Admin\AppData\Local\Temp\BKJJEBKKEH.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1788
          • 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\BKJJEBKKEH.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4288
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:2280
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 2364
        3⤵
        • Program crash
        PID:3052
    • C:\Users\Admin\AppData\Local\Temp\u104.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u104.1.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:1280
      • 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:216
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 1216
      2⤵
      • Program crash
      PID:4504
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1300 -ip 1300
    1⤵
      PID:3468
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1576 -ip 1576
      1⤵
        PID:4012

      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\BKJJEBKKEH.exe

        Filesize

        106KB

        MD5

        fe380780b5c35bd6d54541791151c2be

        SHA1

        7fe3a583cf91474c733f85cebf3c857682e269e1

        SHA256

        b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

        SHA512

        ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

      • C:\Users\Admin\AppData\Local\Temp\u104.0.exe

        Filesize

        268KB

        MD5

        3e1e8709474df25e4c4cbfac47701fc9

        SHA1

        9845a690f6c10d2d68d39637d46dbc238763501a

        SHA256

        07d5b5d440312add7ca4b0b55cadaa3770df47e61907e0e3b4c80b4ac775fd54

        SHA512

        10c66705d847d70c5edd169c9b10c4da94885fb1a94a9c488bf02de39700de5c8709e2bff1c99e26b3393e77c8785977f7e29ff2ba8940417c1495dfe6712bc4

      • C:\Users\Admin\AppData\Local\Temp\u104.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/216-175-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-207-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-211-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-209-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-159-0x0000012AF92C0000-0x0000012AF95C0000-memory.dmp

        Filesize

        3.0MB

      • memory/216-208-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-161-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-206-0x00007FFF16B70000-0x00007FFF17631000-memory.dmp

        Filesize

        10.8MB

      • memory/216-181-0x0000012AFE550000-0x0000012AFE56E000-memory.dmp

        Filesize

        120KB

      • memory/216-176-0x0000012AFE520000-0x0000012AFE542000-memory.dmp

        Filesize

        136KB

      • memory/216-173-0x0000012AFE4D0000-0x0000012AFE520000-memory.dmp

        Filesize

        320KB

      • memory/216-141-0x00007FFF16B70000-0x00007FFF17631000-memory.dmp

        Filesize

        10.8MB

      • memory/216-142-0x0000012ADAC40000-0x0000012ADE538000-memory.dmp

        Filesize

        57.0MB

      • memory/216-143-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-144-0x0000012AF8DE0000-0x0000012AF8EF0000-memory.dmp

        Filesize

        1.1MB

      • memory/216-145-0x0000012AF8970000-0x0000012AF8980000-memory.dmp

        Filesize

        64KB

      • memory/216-147-0x0000012AF8980000-0x0000012AF8994000-memory.dmp

        Filesize

        80KB

      • memory/216-146-0x0000012AF8990000-0x0000012AF899C000-memory.dmp

        Filesize

        48KB

      • memory/216-148-0x0000012AF8AF0000-0x0000012AF8B14000-memory.dmp

        Filesize

        144KB

      • memory/216-149-0x0000012AF8B20000-0x0000012AF8B2A000-memory.dmp

        Filesize

        40KB

      • memory/216-150-0x0000012AF8B40000-0x0000012AF8B6A000-memory.dmp

        Filesize

        168KB

      • memory/216-151-0x0000012AF9030000-0x0000012AF90E2000-memory.dmp

        Filesize

        712KB

      • memory/216-154-0x0000012AF9240000-0x0000012AF92B6000-memory.dmp

        Filesize

        472KB

      • memory/216-153-0x0000012AF9160000-0x0000012AF91C2000-memory.dmp

        Filesize

        392KB

      • memory/216-152-0x0000012AF90E0000-0x0000012AF915A000-memory.dmp

        Filesize

        488KB

      • memory/216-155-0x0000012AF8B30000-0x0000012AF8B3A000-memory.dmp

        Filesize

        40KB

      • memory/216-210-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-174-0x0000012AFE480000-0x0000012AFE48C000-memory.dmp

        Filesize

        48KB

      • memory/216-168-0x0000012AFE700000-0x0000012AFE70A000-memory.dmp

        Filesize

        40KB

      • memory/216-162-0x0000012AFCEF0000-0x0000012AFCEF8000-memory.dmp

        Filesize

        32KB

      • memory/216-164-0x0000012AFD5F0000-0x0000012AFD628000-memory.dmp

        Filesize

        224KB

      • memory/216-165-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-166-0x0000012AFD5C0000-0x0000012AFD5CE000-memory.dmp

        Filesize

        56KB

      • memory/216-167-0x0000012AF89F0000-0x0000012AF8A00000-memory.dmp

        Filesize

        64KB

      • memory/216-170-0x0000012AFEC60000-0x0000012AFF188000-memory.dmp

        Filesize

        5.2MB

      • memory/216-169-0x0000012AFE710000-0x0000012AFE732000-memory.dmp

        Filesize

        136KB

      • memory/1280-26-0x00000000028D0000-0x00000000028D1000-memory.dmp

        Filesize

        4KB

      • memory/1280-137-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1280-140-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1300-2-0x0000000002620000-0x000000000268C000-memory.dmp

        Filesize

        432KB

      • memory/1300-31-0x0000000000400000-0x0000000000884000-memory.dmp

        Filesize

        4.5MB

      • memory/1300-32-0x0000000002620000-0x000000000268C000-memory.dmp

        Filesize

        432KB

      • memory/1300-1-0x0000000000A80000-0x0000000000B80000-memory.dmp

        Filesize

        1024KB

      • memory/1300-3-0x0000000000400000-0x0000000000884000-memory.dmp

        Filesize

        4.5MB

      • memory/1576-127-0x0000000000400000-0x0000000000861000-memory.dmp

        Filesize

        4.4MB

      • memory/1576-15-0x0000000000400000-0x0000000000861000-memory.dmp

        Filesize

        4.4MB

      • memory/1576-188-0x0000000000400000-0x0000000000861000-memory.dmp

        Filesize

        4.4MB

      • memory/1576-163-0x0000000000940000-0x0000000000A40000-memory.dmp

        Filesize

        1024KB

      • memory/1576-202-0x0000000000400000-0x0000000000861000-memory.dmp

        Filesize

        4.4MB

      • memory/1576-13-0x0000000000940000-0x0000000000A40000-memory.dmp

        Filesize

        1024KB

      • memory/1576-14-0x0000000000910000-0x0000000000937000-memory.dmp

        Filesize

        156KB

      • memory/1576-37-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1788-205-0x0000000072C50000-0x0000000073400000-memory.dmp

        Filesize

        7.7MB

      • memory/1788-200-0x0000000072C50000-0x0000000073400000-memory.dmp

        Filesize

        7.7MB

      • memory/1788-201-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

        Filesize

        64KB

      • memory/1788-199-0x00000000005D0000-0x00000000005F0000-memory.dmp

        Filesize

        128KB