Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 09:25

General

  • Target

    9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe

  • Size

    416KB

  • MD5

    bc82c7d1b027af5292b681232bc16d63

  • SHA1

    9fa7189ab3b1d8138cd06e5ec9d484caf1a071b1

  • SHA256

    9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89

  • SHA512

    4c740b580c6a71581afd84ea58c1c43ff316ead1beeaf06746721c063f2236823fa665ce5f37715bfd54ecac5ba20597b4a0204c95025f32f893d6c1818e12d2

  • SSDEEP

    6144:Is39oglCbCdvUevlzUusNjv80uIGK87Veb4Ow93mKWLZmuMil:Is3+Ypvl5cv80FGKkOwStmul

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 30 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\9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe
    "C:\Users\Admin\AppData\Local\Temp\9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\Users\Admin\AppData\Local\Temp\u20c.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u20c.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2288
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2288 -s 2336
        3⤵
        • Program crash
        PID:3644
    • C:\Users\Admin\AppData\Local\Temp\u20c.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u20c.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:4632
      • 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:5056
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1148
      2⤵
      • Program crash
      PID:4680
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2604 -ip 2604
    1⤵
      PID:668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2288 -ip 2288
      1⤵
        PID:4892

      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\u20c.0.exe

        Filesize

        274KB

        MD5

        16720a0516a6e23f11a66b0b8066e5a6

        SHA1

        edf8d8c0eead559891856cf4a962705620dcb10e

        SHA256

        949fb9d3d6ec5bb789ec5bef973e12f4500365137f4c8b2e285b3dc6e9ac88f2

        SHA512

        c49dc5ea54c32ae5c5ff29ab2b997b9c930e9ce7d86d52993afd17e9816e73556e1c1e57b4e27f1db99442b414ebf22adb9966f7cca3a401ca6c7f85e9d0002e

      • C:\Users\Admin\AppData\Local\Temp\u20c.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2288-173-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/2288-93-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/2288-94-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2288-130-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/2604-28-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/2604-1-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/2604-2-0x0000000002D40000-0x0000000002E40000-memory.dmp

        Filesize

        1024KB

      • memory/2604-3-0x0000000002CA0000-0x0000000002D0C000-memory.dmp

        Filesize

        432KB

      • memory/2604-4-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2604-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4632-61-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4632-49-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/5056-72-0x000002AF39A50000-0x000002AF39A72000-memory.dmp

        Filesize

        136KB

      • memory/5056-84-0x000002AF3EBF0000-0x000002AF3EC52000-memory.dmp

        Filesize

        392KB

      • memory/5056-71-0x000002AF39A00000-0x000002AF39A50000-memory.dmp

        Filesize

        320KB

      • memory/5056-70-0x000002AF39980000-0x000002AF399AA000-memory.dmp

        Filesize

        168KB

      • memory/5056-73-0x000002AF39610000-0x000002AF3961A000-memory.dmp

        Filesize

        40KB

      • memory/5056-77-0x000002AF39A80000-0x000002AF39D80000-memory.dmp

        Filesize

        3.0MB

      • memory/5056-79-0x000002AF3A030000-0x000002AF3A038000-memory.dmp

        Filesize

        32KB

      • memory/5056-81-0x000002AF3A300000-0x000002AF3A30E000-memory.dmp

        Filesize

        56KB

      • memory/5056-80-0x000002AF3DAB0000-0x000002AF3DAE8000-memory.dmp

        Filesize

        224KB

      • memory/5056-82-0x000002AF3DA80000-0x000002AF3DA88000-memory.dmp

        Filesize

        32KB

      • memory/5056-83-0x000002AF3DB10000-0x000002AF3DB1A000-memory.dmp

        Filesize

        40KB

      • memory/5056-68-0x000002AF1FC50000-0x000002AF1FC5A000-memory.dmp

        Filesize

        40KB

      • memory/5056-85-0x000002AF3DB40000-0x000002AF3DB62000-memory.dmp

        Filesize

        136KB

      • memory/5056-86-0x000002AF3F180000-0x000002AF3F6A8000-memory.dmp

        Filesize

        5.2MB

      • memory/5056-89-0x000002AF3DB60000-0x000002AF3DB6C000-memory.dmp

        Filesize

        48KB

      • memory/5056-90-0x000002AF3ED20000-0x000002AF3ED96000-memory.dmp

        Filesize

        472KB

      • memory/5056-91-0x000002AF3EC80000-0x000002AF3EC9E000-memory.dmp

        Filesize

        120KB

      • memory/5056-69-0x000002AF398C0000-0x000002AF39972000-memory.dmp

        Filesize

        712KB

      • memory/5056-67-0x000002AF1FC30000-0x000002AF1FC54000-memory.dmp

        Filesize

        144KB

      • memory/5056-66-0x000002AF1FC10000-0x000002AF1FC24000-memory.dmp

        Filesize

        80KB

      • memory/5056-64-0x000002AF1FBF0000-0x000002AF1FC00000-memory.dmp

        Filesize

        64KB

      • memory/5056-65-0x000002AF1FC20000-0x000002AF1FC2C000-memory.dmp

        Filesize

        48KB

      • memory/5056-63-0x000002AF39500000-0x000002AF3960A000-memory.dmp

        Filesize

        1.0MB

      • memory/5056-62-0x000002AF1A7A0000-0x000002AF1DFD4000-memory.dmp

        Filesize

        56.2MB