Analysis

  • max time kernel
    149s
  • max time network
    152s
  • 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 07:57

General

  • Target

    5157678f44cf7bf3650e2151c2cca58f9f46b754117ebc85c2cb6e2d0b729202.exe

  • Size

    372KB

  • MD5

    7aba9190327846dafdb0fdc48e57ab84

  • SHA1

    4eefc7ac537ed9fc61c64533c6c0de1cccc2932a

  • SHA256

    5157678f44cf7bf3650e2151c2cca58f9f46b754117ebc85c2cb6e2d0b729202

  • SHA512

    4f485ac361f602e1aa7d7a7e1b15d0532c0583a84ba5dbb0148aa480d05985fcf9009a2ccd49a093f889930f2f89315870b8af99a621b2e6a42d077f9ec5472e

  • SSDEEP

    6144:oetK0xCObQ2fKaCJVeUg8gSX9THaaQJdHuU+7SH5t6VYTZfm1:oetKRixyaCWDORJQJdHuU+7SZtNZ+1

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\5157678f44cf7bf3650e2151c2cca58f9f46b754117ebc85c2cb6e2d0b729202.exe
    "C:\Users\Admin\AppData\Local\Temp\5157678f44cf7bf3650e2151c2cca58f9f46b754117ebc85c2cb6e2d0b729202.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4532
    • C:\Users\Admin\AppData\Local\Temp\u3hw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3hw.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 2260
        3⤵
        • Program crash
        PID:760
    • C:\Users\Admin\AppData\Local\Temp\u3hw.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3hw.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:3508
      • 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:4296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1604
      2⤵
      • Program crash
      PID:4644
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4532 -ip 4532
    1⤵
      PID:552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1972 -ip 1972
      1⤵
        PID:2588

      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

        26936de77afd9a4e162427ddbc4b7760

        SHA1

        3daeb8e15651c25c68f1b7b81b8fd48da2ba6a5d

        SHA256

        f462647d82b314a25117a6de1a59fc462b56da2aae5deca0f33428d99b06cac5

        SHA512

        f87a84a7ef18c7ec890d3d9ab62739cc277b15815dba8caad72a8c6a8bd4abc85d1078f0064e2f1c9cca7bdf30f4b904a7477789df28d35dd2ab9e9eeea60d20

      • C:\Users\Admin\AppData\Local\Temp\u3hw.0.exe

        Filesize

        230KB

        MD5

        adaa7779ccd1879d9466706724ca2974

        SHA1

        af546b538b5362ee19131e8d30b633c817417d15

        SHA256

        7109bdc186a84c29affbe2882b747b8c32587ce4e8d4b39e770faa06d94431d8

        SHA512

        96fa1c074b4f268393f17b400711898178ce8479272d5b6ca1405568dbe63cc618b46bfb5b80a8b97a7a796f6d4b60c3727beb2b2a13d7e749b3746b736bff87

      • C:\Users\Admin\AppData\Local\Temp\u3hw.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1972-14-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/1972-26-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/1972-30-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/1972-32-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1972-142-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/1972-164-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/1972-103-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/3508-135-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3508-132-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4296-148-0x000001E4737D0000-0x000001E4737E0000-memory.dmp

        Filesize

        64KB

      • memory/4296-156-0x000001E473E70000-0x000001E473E92000-memory.dmp

        Filesize

        136KB

      • memory/4296-177-0x000001E479150000-0x000001E47916E000-memory.dmp

        Filesize

        120KB

      • memory/4296-136-0x000001E46C320000-0x000001E46FB54000-memory.dmp

        Filesize

        56.2MB

      • memory/4296-176-0x000001E4791F0000-0x000001E479266000-memory.dmp

        Filesize

        472KB

      • memory/4296-146-0x000001E473A00000-0x000001E473B0A000-memory.dmp

        Filesize

        1.0MB

      • memory/4296-149-0x000001E473B10000-0x000001E473B1C000-memory.dmp

        Filesize

        48KB

      • memory/4296-175-0x000001E479110000-0x000001E47911C000-memory.dmp

        Filesize

        48KB

      • memory/4296-150-0x000001E4737E0000-0x000001E4737F4000-memory.dmp

        Filesize

        80KB

      • memory/4296-172-0x000001E479920000-0x000001E479E48000-memory.dmp

        Filesize

        5.2MB

      • memory/4296-151-0x000001E473B60000-0x000001E473B84000-memory.dmp

        Filesize

        144KB

      • memory/4296-152-0x000001E473CC0000-0x000001E473CCA000-memory.dmp

        Filesize

        40KB

      • memory/4296-153-0x000001E473CF0000-0x000001E473D1A000-memory.dmp

        Filesize

        168KB

      • memory/4296-154-0x000001E473D20000-0x000001E473DD2000-memory.dmp

        Filesize

        712KB

      • memory/4296-155-0x000001E473E20000-0x000001E473E70000-memory.dmp

        Filesize

        320KB

      • memory/4296-171-0x000001E4790F0000-0x000001E479112000-memory.dmp

        Filesize

        136KB

      • memory/4296-157-0x000001E473CD0000-0x000001E473CDA000-memory.dmp

        Filesize

        40KB

      • memory/4296-161-0x000001E473EA0000-0x000001E4741A0000-memory.dmp

        Filesize

        3.0MB

      • memory/4296-170-0x000001E479390000-0x000001E4793F2000-memory.dmp

        Filesize

        392KB

      • memory/4296-165-0x000001E4788C0000-0x000001E4788C8000-memory.dmp

        Filesize

        32KB

      • memory/4296-166-0x000001E477E00000-0x000001E477E38000-memory.dmp

        Filesize

        224KB

      • memory/4296-167-0x000001E477DD0000-0x000001E477DDE000-memory.dmp

        Filesize

        56KB

      • memory/4296-168-0x000001E477DF0000-0x000001E477DF8000-memory.dmp

        Filesize

        32KB

      • memory/4296-169-0x000001E479370000-0x000001E47937A000-memory.dmp

        Filesize

        40KB

      • memory/4532-2-0x0000000002720000-0x000000000278C000-memory.dmp

        Filesize

        432KB

      • memory/4532-62-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4532-1-0x0000000002810000-0x0000000002910000-memory.dmp

        Filesize

        1024KB

      • memory/4532-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4532-13-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4532-64-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB