Analysis

  • max time kernel
    142s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 19:49

General

  • Target

    bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70.exe

  • Size

    404KB

  • MD5

    191946388652f27978becd88d38b0b27

  • SHA1

    c826820147ddac4ea6540cb3ad4c0ce617ea1cd2

  • SHA256

    bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70

  • SHA512

    d91637f372588d465b00c3ef415aec52c11c9ea8b46047f48a153398cbcd8b42fd8568f37ec7474aa27c1def30ff8c1218d0e24cc5a9b23031af4d72f4a1c895

  • SSDEEP

    6144:I+hXdi5S6e9EioGDqP3/CFPi/uh9SqPLb6kACHXPH1D2B9DHf6:vi5SQGOPvCFPi/uhYwLbmC3PH1D2BR6

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\bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70.exe
    "C:\Users\Admin\AppData\Local\Temp\bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\u164.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u164.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3288
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3288 -s 2436
        3⤵
        • Program crash
        PID:404
    • C:\Users\Admin\AppData\Local\Temp\u164.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u164.1.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:2460
      • 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:2964
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 1156
      2⤵
      • Program crash
      PID:3536
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1516 -ip 1516
    1⤵
      PID:5112
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3288 -ip 3288
      1⤵
        PID:3556

      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

        0a6ab6fa83316511f3151fb86be80f26

        SHA1

        9a0c325eaf333a4839c1ead78868e73023c9ce50

        SHA256

        82688d2ed583829aca816b75fcdbd6ac6e4d42f82022247e25734d1230056d6b

        SHA512

        8140d9036d169fd38bac137548ec54b20bb556469956a2f37cabbf3c98134cbe21158095e0ab0990449aa855b4647591f2a84714285328d5877550ca4e2e8c92

      • C:\Users\Admin\AppData\Local\Temp\u164.0.exe

        Filesize

        262KB

        MD5

        49c818da112894812df1468c79b96bbc

        SHA1

        b943d8877e19b59cd6f61f702c659e635fd96a4f

        SHA256

        7dee0c70282dffb5642fe42e1d7480ace50d58fad04f41f240b99dd7be432a3a

        SHA512

        5171905e30b07b72a32f12b0d9a39003d1a8aa83feeb25cb867a2290eed5e8bf3c6b2d7e5eb85be31a1bc818726dafd899d9956440804b2ef47d46e41c259732

      • C:\Users\Admin\AppData\Local\Temp\u164.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1516-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1516-28-0x0000000000400000-0x0000000002B22000-memory.dmp

        Filesize

        39.1MB

      • memory/1516-5-0x0000000000400000-0x0000000002B22000-memory.dmp

        Filesize

        39.1MB

      • memory/1516-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1516-1-0x0000000002B90000-0x0000000002C90000-memory.dmp

        Filesize

        1024KB

      • memory/1516-2-0x0000000004790000-0x00000000047FC000-memory.dmp

        Filesize

        432KB

      • memory/2460-49-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2460-62-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2964-99-0x0000022132B90000-0x0000022132B98000-memory.dmp

        Filesize

        32KB

      • memory/2964-95-0x0000022132B70000-0x0000022132B7E000-memory.dmp

        Filesize

        56KB

      • memory/2964-67-0x000002212E240000-0x000002212E254000-memory.dmp

        Filesize

        80KB

      • memory/2964-68-0x000002212E2C0000-0x000002212E2E4000-memory.dmp

        Filesize

        144KB

      • memory/2964-69-0x0000022115990000-0x000002211599A000-memory.dmp

        Filesize

        40KB

      • memory/2964-70-0x000002212E670000-0x000002212E69A000-memory.dmp

        Filesize

        168KB

      • memory/2964-71-0x000002212E6A0000-0x000002212E752000-memory.dmp

        Filesize

        712KB

      • memory/2964-72-0x000002212E7A0000-0x000002212E7F0000-memory.dmp

        Filesize

        320KB

      • memory/2964-73-0x000002212E7F0000-0x000002212E812000-memory.dmp

        Filesize

        136KB

      • memory/2964-74-0x00000221159A0000-0x00000221159AA000-memory.dmp

        Filesize

        40KB

      • memory/2964-78-0x000002212E820000-0x000002212EB20000-memory.dmp

        Filesize

        3.0MB

      • memory/2964-63-0x0000022110390000-0x0000022113BC4000-memory.dmp

        Filesize

        56.2MB

      • memory/2964-81-0x0000022133220000-0x0000022133228000-memory.dmp

        Filesize

        32KB

      • memory/2964-64-0x000002212E420000-0x000002212E52A000-memory.dmp

        Filesize

        1.0MB

      • memory/2964-94-0x0000022132BA0000-0x0000022132BD8000-memory.dmp

        Filesize

        224KB

      • memory/2964-65-0x000002212E230000-0x000002212E240000-memory.dmp

        Filesize

        64KB

      • memory/2964-66-0x000002212E260000-0x000002212E26C000-memory.dmp

        Filesize

        48KB

      • memory/2964-103-0x0000022133D50000-0x0000022133D72000-memory.dmp

        Filesize

        136KB

      • memory/2964-102-0x0000022133CF0000-0x0000022133D52000-memory.dmp

        Filesize

        392KB

      • memory/2964-101-0x0000022132C00000-0x0000022132C0A000-memory.dmp

        Filesize

        40KB

      • memory/2964-111-0x00000221342A0000-0x00000221347C8000-memory.dmp

        Filesize

        5.2MB

      • memory/2964-124-0x0000022133A60000-0x0000022133A6C000-memory.dmp

        Filesize

        48KB

      • memory/2964-128-0x0000022133E40000-0x0000022133EB6000-memory.dmp

        Filesize

        472KB

      • memory/2964-135-0x0000022133DA0000-0x0000022133DBE000-memory.dmp

        Filesize

        120KB

      • memory/3288-137-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/3288-82-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3288-80-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/3288-61-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/3288-166-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB