Analysis

  • max time kernel
    133s
  • max time network
    133s
  • 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 10:16

General

  • Target

    bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff.exe

  • Size

    417KB

  • MD5

    8559a8e41733cc6441febaf102bcef29

  • SHA1

    aa8a1256988c97242674fec0ef1fb1279830f06b

  • SHA256

    bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff

  • SHA512

    727fead6c7bff267bc18f80c61e2b14e1bc45a919b5a3444b1ee11906d8addb44a79ee548c3a528903df7b3c9dd188071c57b5de4864bfbe2ce3b33a49f39615

  • SSDEEP

    6144:d5pk6VtVbGU1sVOzp0f1eYVwIuI84glzNwiaTSLrqi3Vta5I:d5pjVLbX0ONzYarI0lzhaT+RVtMI

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\bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff.exe
    "C:\Users\Admin\AppData\Local\Temp\bd7df1cb2a16dac8bf9352a5345186e8ec9b1338aeac506003aed8f53d005eff.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Users\Admin\AppData\Local\Temp\u30k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u30k.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4452
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 2512
        3⤵
        • Program crash
        PID:4584
    • C:\Users\Admin\AppData\Local\Temp\u30k.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u30k.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:3844
      • 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:1624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3908 -s 1156
      2⤵
      • Program crash
      PID:1368
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3908 -ip 3908
    1⤵
      PID:1632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4452 -ip 4452
      1⤵
        PID:4400

      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

        8366ea44c760cc2067ca686b9e4d84ae

        SHA1

        6c4864c7f05e091a14280204c18d52e720ba4a38

        SHA256

        0c19bb7eba943942446d2121393c773353a7177265bc0edd41cb192b64ac4460

        SHA512

        e555f331f03ac714c138735af94ec25b633840b78401807318e367d454a2b42110ebb600a1019deb8c405f69dbef59aec5514ea1de4d764b0da9b07bbbfdf379

      • C:\Users\Admin\AppData\Local\Temp\u30k.0.exe

        Filesize

        274KB

        MD5

        7faacbf66f86efccce100cd447ecca62

        SHA1

        90f565110b0bbd2f086acaf6ef57fb13f4f7d86f

        SHA256

        c5400417da46366c8a498ed88d81f968fd504a2a704022dea1a7bdfc0cdc0677

        SHA512

        16c9d4c07ff3dbf0850dafdaa67381086b6ba40644bc153094d58ec641379f126bc1877832d4ab0efadd3f723dd6a89a5c33c3239d5033e150880105075d470a

      • C:\Users\Admin\AppData\Local\Temp\u30k.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1624-150-0x000002337C600000-0x000002337C60C000-memory.dmp

        Filesize

        48KB

      • memory/1624-155-0x000002337DCC0000-0x000002337DCEA000-memory.dmp

        Filesize

        168KB

      • memory/1624-182-0x000002337E750000-0x000002337E76E000-memory.dmp

        Filesize

        120KB

      • memory/1624-180-0x000002337E720000-0x000002337E742000-memory.dmp

        Filesize

        136KB

      • memory/1624-174-0x000002331A790000-0x000002331A79C000-memory.dmp

        Filesize

        48KB

      • memory/1624-173-0x00000233800F0000-0x0000023380140000-memory.dmp

        Filesize

        320KB

      • memory/1624-170-0x000002331BB10000-0x000002331C038000-memory.dmp

        Filesize

        5.2MB

      • memory/1624-169-0x000002331A770000-0x000002331A792000-memory.dmp

        Filesize

        136KB

      • memory/1624-168-0x000002331A760000-0x000002331A76A000-memory.dmp

        Filesize

        40KB

      • memory/1624-167-0x0000023380020000-0x000002338002E000-memory.dmp

        Filesize

        56KB

      • memory/1624-147-0x0000023376F50000-0x000002337A848000-memory.dmp

        Filesize

        57.0MB

      • memory/1624-166-0x0000023380060000-0x0000023380098000-memory.dmp

        Filesize

        224KB

      • memory/1624-148-0x000002337DDF0000-0x000002337DF00000-memory.dmp

        Filesize

        1.1MB

      • memory/1624-149-0x000002337C5E0000-0x000002337C5F0000-memory.dmp

        Filesize

        64KB

      • memory/1624-165-0x0000023380010000-0x0000023380018000-memory.dmp

        Filesize

        32KB

      • memory/1624-151-0x000002337C5F0000-0x000002337C604000-memory.dmp

        Filesize

        80KB

      • memory/1624-152-0x000002337DC80000-0x000002337DCA4000-memory.dmp

        Filesize

        144KB

      • memory/1624-153-0x000002337DCA0000-0x000002337DCAA000-memory.dmp

        Filesize

        40KB

      • memory/1624-154-0x000002337E1E0000-0x000002337E292000-memory.dmp

        Filesize

        712KB

      • memory/1624-163-0x000002337E3F0000-0x000002337E6F0000-memory.dmp

        Filesize

        3.0MB

      • memory/1624-156-0x000002337DF00000-0x000002337DF7A000-memory.dmp

        Filesize

        488KB

      • memory/1624-157-0x000002337E290000-0x000002337E2F2000-memory.dmp

        Filesize

        392KB

      • memory/1624-158-0x000002337E370000-0x000002337E3E6000-memory.dmp

        Filesize

        472KB

      • memory/1624-159-0x000002337DCB0000-0x000002337DCBA000-memory.dmp

        Filesize

        40KB

      • memory/3844-145-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3844-133-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3908-2-0x0000000003680000-0x00000000036EC000-memory.dmp

        Filesize

        432KB

      • memory/3908-1-0x0000000001AD0000-0x0000000001BD0000-memory.dmp

        Filesize

        1024KB

      • memory/3908-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3908-74-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/3908-75-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4452-146-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4452-124-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4452-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4452-17-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4452-26-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4452-181-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB