Analysis

  • max time kernel
    131s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 23:20

General

  • Target

    1b96d860921481cc774c4adf05e1688d9a8d6cc7481e9fc24fd9a05b537a6722.exe

  • Size

    449KB

  • MD5

    2713d2fd750f1752932dd73ad4e6147d

  • SHA1

    af58830ec12e543d71ef8523c59b4f9b181f5eb1

  • SHA256

    1b96d860921481cc774c4adf05e1688d9a8d6cc7481e9fc24fd9a05b537a6722

  • SHA512

    7faed9bb59ad843bb4d9188345f4151033af3dd9b4d4c1d456d6bfc9ff7a67db98cddb0feb209a4d91eaeeb878bdebcf859c5639f2b3f56e4421247348ab3d54

  • SSDEEP

    12288:z4kni8/6leIbaECbwZzSSR1tqRnnKPkgq:k7ba7buzVzkRKPkgq

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 28 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\1b96d860921481cc774c4adf05e1688d9a8d6cc7481e9fc24fd9a05b537a6722.exe
    "C:\Users\Admin\AppData\Local\Temp\1b96d860921481cc774c4adf05e1688d9a8d6cc7481e9fc24fd9a05b537a6722.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4664
    • C:\Users\Admin\AppData\Local\Temp\u3lk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3lk.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1456
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 1984
        3⤵
        • Program crash
        PID:1032
    • C:\Users\Admin\AppData\Local\Temp\u3lk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3lk.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:2664
      • 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:2616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1552
      2⤵
      • Program crash
      PID:3472
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4664 -ip 4664
    1⤵
      PID:4868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1456 -ip 1456
      1⤵
        PID:868

      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\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        2bf82ec45252e34a69cadb1ea49bfd1e

        SHA1

        ad8b5f24d86b8d57ce0b5038eeeb9bbd711c34f8

        SHA256

        8d29b34e8229c77732b6b35727a46ecfa9e8dc004d8138c2102532aefb584394

        SHA512

        2644074f115f1cfca07678c2b9aa7bb27d66586c995e55778a09080f9586a7d66e44ea1ae1c0a2156197be2618d6874bc24d5779fdc2030895a8544c1a73ff84

      • C:\Users\Admin\AppData\Local\Temp\u3lk.0.exe

        Filesize

        308KB

        MD5

        4989a0cdd90c1864f801e4f15a1f2e94

        SHA1

        f395f00b1bd62546bd0e67bea68aff3bf8bda0d2

        SHA256

        d70ca1aba20eca32e5cdc71bfde5744070a94b7022ac6ce1575aa2692a89d41e

        SHA512

        4142bea9c8cff78bc602eb8bd077b30859aa073a473764052bdd3539167138a9452a57865d33383817ee8a08c16bdba818ae9cf0ca633d83f833d48ab5a5f09f

      • C:\Users\Admin\AppData\Local\Temp\u3lk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1456-109-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/1456-13-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/1456-14-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/1456-28-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2616-141-0x00000231DBF70000-0x00000231DBF7C000-memory.dmp

        Filesize

        48KB

      • memory/2616-146-0x00000231DC2B0000-0x00000231DC362000-memory.dmp

        Filesize

        712KB

      • memory/2616-167-0x00000231E1720000-0x00000231E173E000-memory.dmp

        Filesize

        120KB

      • memory/2616-166-0x00000231E17C0000-0x00000231E1836000-memory.dmp

        Filesize

        472KB

      • memory/2616-165-0x00000231E16E0000-0x00000231E16EC000-memory.dmp

        Filesize

        48KB

      • memory/2616-162-0x00000231E1E20000-0x00000231E2348000-memory.dmp

        Filesize

        5.2MB

      • memory/2616-161-0x00000231E16C0000-0x00000231E16E2000-memory.dmp

        Filesize

        136KB

      • memory/2616-138-0x00000231BDFA0000-0x00000231C17D4000-memory.dmp

        Filesize

        56.2MB

      • memory/2616-139-0x00000231DBE60000-0x00000231DBF6A000-memory.dmp

        Filesize

        1.0MB

      • memory/2616-140-0x00000231DBD30000-0x00000231DBD40000-memory.dmp

        Filesize

        64KB

      • memory/2616-160-0x00000231E1660000-0x00000231E16C2000-memory.dmp

        Filesize

        392KB

      • memory/2616-142-0x00000231DBD40000-0x00000231DBD54000-memory.dmp

        Filesize

        80KB

      • memory/2616-143-0x00000231DBFC0000-0x00000231DBFE4000-memory.dmp

        Filesize

        144KB

      • memory/2616-145-0x00000231DC280000-0x00000231DC2AA000-memory.dmp

        Filesize

        168KB

      • memory/2616-144-0x00000231DBFE0000-0x00000231DBFEA000-memory.dmp

        Filesize

        40KB

      • memory/2616-159-0x00000231E18E0000-0x00000231E18EA000-memory.dmp

        Filesize

        40KB

      • memory/2616-147-0x00000231DC3B0000-0x00000231DC400000-memory.dmp

        Filesize

        320KB

      • memory/2616-148-0x00000231DC400000-0x00000231DC422000-memory.dmp

        Filesize

        136KB

      • memory/2616-149-0x00000231DBFF0000-0x00000231DBFFA000-memory.dmp

        Filesize

        40KB

      • memory/2616-153-0x00000231DC430000-0x00000231DC730000-memory.dmp

        Filesize

        3.0MB

      • memory/2616-155-0x00000231E07F0000-0x00000231E07F8000-memory.dmp

        Filesize

        32KB

      • memory/2616-156-0x00000231E0770000-0x00000231E07A8000-memory.dmp

        Filesize

        224KB

      • memory/2616-157-0x00000231E0740000-0x00000231E074E000-memory.dmp

        Filesize

        56KB

      • memory/2616-158-0x00000231E0760000-0x00000231E0768000-memory.dmp

        Filesize

        32KB

      • memory/2664-137-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2664-126-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4664-65-0x0000000000400000-0x0000000001A3A000-memory.dmp

        Filesize

        22.2MB

      • memory/4664-1-0x0000000001C00000-0x0000000001D00000-memory.dmp

        Filesize

        1024KB

      • memory/4664-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4664-2-0x00000000036A0000-0x000000000370C000-memory.dmp

        Filesize

        432KB

      • memory/4664-66-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB