Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 17:27

General

  • Target

    42328590e2ec09e65c125f2a0ad71e15c30c21a1a085ce3adec24cb541c2222c.exe

  • Size

    372KB

  • MD5

    2580f4c03686851b508c33797235c295

  • SHA1

    08042519f1948dc6bfc2acc112211512f5edbe0c

  • SHA256

    42328590e2ec09e65c125f2a0ad71e15c30c21a1a085ce3adec24cb541c2222c

  • SHA512

    4dc7ed463f4bb42f0469153e5f8582170bce4c240fec9bf67ace50510d952958c7fefa69597f4033cb5596ba041c08d325d4af8e0ab0467f9594171568d024f4

  • SSDEEP

    6144:Tc4ggstOWNGtTEuAvVe7eMLdW6Pv8+Z69v4d0TzDjtsLQrMnpKk+TT6vc:Tc4gntlaQuAvVixPPv8+Z69QOTPhsLvM

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 21 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\42328590e2ec09e65c125f2a0ad71e15c30c21a1a085ce3adec24cb541c2222c.exe
    "C:\Users\Admin\AppData\Local\Temp\42328590e2ec09e65c125f2a0ad71e15c30c21a1a085ce3adec24cb541c2222c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Users\Admin\AppData\Local\Temp\u1h4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1h4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4816
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 2376
        3⤵
        • Program crash
        PID:3400
    • C:\Users\Admin\AppData\Local\Temp\u1h4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1h4.1.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:4848
      • 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:4960
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 1152
      2⤵
      • Program crash
      PID:2516
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1912 -ip 1912
    1⤵
      PID:3708
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4816 -ip 4816
      1⤵
        PID:3708

      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

        2KB

        MD5

        264ac0838382b7effe83487f367d6066

        SHA1

        aac0651b5f62238aef3672f78f3a2ec4d36ae04f

        SHA256

        3f3649a744fadadc7544f0c3b78c9930130d7974a85e8574042cdb5136f0e582

        SHA512

        9ad6943e9ebe33ac02dc185ccfcac4c9613680fdf0d3db59dede46e82674cc9a8bf23644d7a829a6bf4f9ba659fd17680ec2332882e6325bced7b7e0389915d7

      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        fbe5b0fea20866b8618a77697f9e9095

        SHA1

        5491f08e5b220b7b362ed0c17c00459711e1b2fd

        SHA256

        65e5336317421badfc751eb7f9a6b31bae084d1cb0adc6e286eb1a260f754a34

        SHA512

        6188503fede6b2bd50d886d522d896b90ac54da49cc5d8dd4a669ba29059c9b9779c4154c873378cfceb21f346253d8e68f2b1cee55236cd025e6d479ac87a86

      • C:\Users\Admin\AppData\Local\Temp\u1h4.0.exe

        Filesize

        231KB

        MD5

        eabfdaca74d258561209e731259bf818

        SHA1

        5bf324d6792cef6cb1663c88002480029aa8c1a8

        SHA256

        8122ab1285665bacd89fa9865281315c62b94eb10910927283424ff283f5fb1b

        SHA512

        42277497bb262f951f066b1e069c57173832b5cc7697111c80b1a5f95f769fed4a3cc6ff4d96d8ad78f60690fec2a1a7497d8f0b24a6971fd70a67ac63f32ef3

      • C:\Users\Admin\AppData\Local\Temp\u1h4.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1912-28-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1912-27-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/1912-4-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1912-1-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/1912-2-0x00000000026C0000-0x00000000027C0000-memory.dmp

        Filesize

        1024KB

      • memory/1912-3-0x0000000004230000-0x000000000429C000-memory.dmp

        Filesize

        432KB

      • memory/4816-61-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4816-168-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4816-156-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4848-49-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4848-84-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4960-127-0x000001B5B99E0000-0x000001B5B9A04000-memory.dmp

        Filesize

        144KB

      • memory/4960-145-0x000001B5BA4F0000-0x000001B5BA528000-memory.dmp

        Filesize

        224KB

      • memory/4960-126-0x000001B5B9970000-0x000001B5B9984000-memory.dmp

        Filesize

        80KB

      • memory/4960-130-0x000001B5B9A10000-0x000001B5B9A1A000-memory.dmp

        Filesize

        40KB

      • memory/4960-131-0x000001B5B9FC0000-0x000001B5B9FEA000-memory.dmp

        Filesize

        168KB

      • memory/4960-132-0x000001B5B9FF0000-0x000001B5BA0A2000-memory.dmp

        Filesize

        712KB

      • memory/4960-136-0x000001B5BA0F0000-0x000001B5BA140000-memory.dmp

        Filesize

        320KB

      • memory/4960-137-0x000001B5BA140000-0x000001B5BA162000-memory.dmp

        Filesize

        136KB

      • memory/4960-138-0x000001B5B9A20000-0x000001B5B9A2A000-memory.dmp

        Filesize

        40KB

      • memory/4960-142-0x000001B5BA170000-0x000001B5BA470000-memory.dmp

        Filesize

        3.0MB

      • memory/4960-144-0x000001B5BA5B0000-0x000001B5BA5B8000-memory.dmp

        Filesize

        32KB

      • memory/4960-120-0x000001B5B9960000-0x000001B5B9970000-memory.dmp

        Filesize

        64KB

      • memory/4960-146-0x000001B5BA4C0000-0x000001B5BA4CE000-memory.dmp

        Filesize

        56KB

      • memory/4960-147-0x000001B5BA4E0000-0x000001B5BA4E8000-memory.dmp

        Filesize

        32KB

      • memory/4960-148-0x000001B5BA5E0000-0x000001B5BA5EA000-memory.dmp

        Filesize

        40KB

      • memory/4960-149-0x000001B5BA600000-0x000001B5BA662000-memory.dmp

        Filesize

        392KB

      • memory/4960-150-0x000001B5BA660000-0x000001B5BA682000-memory.dmp

        Filesize

        136KB

      • memory/4960-151-0x000001B5BF890000-0x000001B5BFDB8000-memory.dmp

        Filesize

        5.2MB

      • memory/4960-154-0x000001B5BA5F0000-0x000001B5BA5FC000-memory.dmp

        Filesize

        48KB

      • memory/4960-155-0x000001B5BA750000-0x000001B5BA7C6000-memory.dmp

        Filesize

        472KB

      • memory/4960-121-0x000001B5B9980000-0x000001B5B998C000-memory.dmp

        Filesize

        48KB

      • memory/4960-157-0x000001B5BA6B0000-0x000001B5BA6CE000-memory.dmp

        Filesize

        120KB

      • memory/4960-116-0x000001B5B9D70000-0x000001B5B9E7A000-memory.dmp

        Filesize

        1.0MB

      • memory/4960-95-0x000001B59BA60000-0x000001B59F294000-memory.dmp

        Filesize

        56.2MB