Analysis

  • max time kernel
    134s
  • max time network
    131s
  • 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 09:15

General

  • Target

    4092a17bdd67364cdfaaee8c9cdbb0ffb02e3b803b9c3cb40ede0d3bd6b1705d.exe

  • Size

    417KB

  • MD5

    eb744bf3b15e592d80e532e4ed9a7946

  • SHA1

    95d6ae238f3e9f5070b7dd99f44e5b40b5822c70

  • SHA256

    4092a17bdd67364cdfaaee8c9cdbb0ffb02e3b803b9c3cb40ede0d3bd6b1705d

  • SHA512

    e447532726c1acfaa30093b0c6ab2caf8695ebdb9834f8279f828895268f58b9ba0469945ba344624458056ef1a263f275dbaf39614ba64e57b7eb140ff63218

  • SSDEEP

    6144:Gvm5q7cumHxCrGqFot529roAosBXIwDT6Wg1dHN8pQUfFZpYY8pS/rUUwKOgYtao:Gvqq7cumorCFKpnq/OFr8pvKStK4

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 27 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\4092a17bdd67364cdfaaee8c9cdbb0ffb02e3b803b9c3cb40ede0d3bd6b1705d.exe
    "C:\Users\Admin\AppData\Local\Temp\4092a17bdd67364cdfaaee8c9cdbb0ffb02e3b803b9c3cb40ede0d3bd6b1705d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\Users\Admin\AppData\Local\Temp\u3pk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3pk.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1080
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 2340
        3⤵
        • Program crash
        PID:1812
    • C:\Users\Admin\AppData\Local\Temp\u3pk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3pk.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:3316
      • 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:4232
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1144
      2⤵
      • Program crash
      PID:4616
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4808 -ip 4808
    1⤵
      PID:2920
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1080 -ip 1080
      1⤵
        PID:1352

      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

        0ac110c3476c2448708d9b61f8f9f718

        SHA1

        9c6174d315f6f4511de9325d1a16112f5ec49307

        SHA256

        a7e717b1052ac4fe3dd2e7615b192e1f7489f3a5807c683c60b17b2d6bbbd5a7

        SHA512

        4ad295a5cd13a49561b6ee3f608a12e9c40c62b893e5f726c642f147782fc3c253bdfd9acde37009842724a5f88c33fe342c049463b8b381cf57467e5c46376d

      • C:\Users\Admin\AppData\Local\Temp\u3pk.0.exe

        Filesize

        275KB

        MD5

        e204cf255baa04d7989d28f3e6b4ab83

        SHA1

        ca10014a405ca8bf9f9a2d19cf71748cf1ae2e63

        SHA256

        4cceee7f9f7da2dc7f29954591aa0e7bd5c8d53063dc4e16cc63996febd9d4f4

        SHA512

        3e2069174efd894cd7f7ea4c7fdae94914c0f342b7a7043737e621cbe8242346a1aae7a1afccbf06f00d66dfa4105633906ba43c822c3d3399ac30078df69c65

      • C:\Users\Admin\AppData\Local\Temp\u3pk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1080-114-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1080-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1080-17-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1080-18-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3316-142-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3316-130-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4232-159-0x00000207B72B0000-0x00000207B75B0000-memory.dmp

        Filesize

        3.0MB

      • memory/4232-153-0x00000207B7150000-0x00000207B71B2000-memory.dmp

        Filesize

        392KB

      • memory/4232-172-0x00000207BC5A0000-0x00000207BC5BE000-memory.dmp

        Filesize

        120KB

      • memory/4232-171-0x00000207BC570000-0x00000207BC592000-memory.dmp

        Filesize

        136KB

      • memory/4232-170-0x00000207BC4D0000-0x00000207BC4DC000-memory.dmp

        Filesize

        48KB

      • memory/4232-143-0x0000020797E10000-0x000002079B708000-memory.dmp

        Filesize

        57.0MB

      • memory/4232-144-0x00000207B6E80000-0x00000207B6F90000-memory.dmp

        Filesize

        1.1MB

      • memory/4232-145-0x000002079BB20000-0x000002079BB30000-memory.dmp

        Filesize

        64KB

      • memory/4232-146-0x000002079D4D0000-0x000002079D4DC000-memory.dmp

        Filesize

        48KB

      • memory/4232-147-0x000002079BB70000-0x000002079BB84000-memory.dmp

        Filesize

        80KB

      • memory/4232-148-0x000002079D4E0000-0x000002079D504000-memory.dmp

        Filesize

        144KB

      • memory/4232-149-0x000002079D500000-0x000002079D50A000-memory.dmp

        Filesize

        40KB

      • memory/4232-150-0x00000207B6C80000-0x00000207B6CAA000-memory.dmp

        Filesize

        168KB

      • memory/4232-151-0x00000207B6CC0000-0x00000207B6D72000-memory.dmp

        Filesize

        712KB

      • memory/4232-152-0x00000207B70D0000-0x00000207B714A000-memory.dmp

        Filesize

        488KB

      • memory/4232-169-0x00000207BC520000-0x00000207BC570000-memory.dmp

        Filesize

        320KB

      • memory/4232-154-0x00000207B7230000-0x00000207B72A6000-memory.dmp

        Filesize

        472KB

      • memory/4232-155-0x00000207B6C70000-0x00000207B6C7A000-memory.dmp

        Filesize

        40KB

      • memory/4232-166-0x00000207BCCA0000-0x00000207BD1C8000-memory.dmp

        Filesize

        5.2MB

      • memory/4232-161-0x00000207BAEF0000-0x00000207BAEF8000-memory.dmp

        Filesize

        32KB

      • memory/4232-162-0x00000207BB600000-0x00000207BB638000-memory.dmp

        Filesize

        224KB

      • memory/4232-163-0x00000207BB5C0000-0x00000207BB5CE000-memory.dmp

        Filesize

        56KB

      • memory/4232-164-0x00000207BB680000-0x00000207BB68A000-memory.dmp

        Filesize

        40KB

      • memory/4232-165-0x00000207BC750000-0x00000207BC772000-memory.dmp

        Filesize

        136KB

      • memory/4808-2-0x0000000003670000-0x00000000036DC000-memory.dmp

        Filesize

        432KB

      • memory/4808-108-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/4808-1-0x0000000001AC0000-0x0000000001BC0000-memory.dmp

        Filesize

        1024KB

      • memory/4808-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4808-112-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB