Analysis

  • max time kernel
    127s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-05-2024 09:25

General

  • Target

    9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe

  • Size

    416KB

  • MD5

    bc82c7d1b027af5292b681232bc16d63

  • SHA1

    9fa7189ab3b1d8138cd06e5ec9d484caf1a071b1

  • SHA256

    9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89

  • SHA512

    4c740b580c6a71581afd84ea58c1c43ff316ead1beeaf06746721c063f2236823fa665ce5f37715bfd54ecac5ba20597b4a0204c95025f32f893d6c1818e12d2

  • SSDEEP

    6144:Is39oglCbCdvUevlzUusNjv80uIGK87Veb4Ow93mKWLZmuMil:Is3+Ypvl5cv80FGKkOwStmul

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
  • 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 23 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\9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe
    "C:\Users\Admin\AppData\Local\Temp\9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3800
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 2456
        3⤵
        • Program crash
        PID:2788
    • C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4756
      • 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:2344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 1524
      2⤵
      • Program crash
      PID:2200
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5000 -ip 5000
    1⤵
      PID:2924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3800 -ip 3800
      1⤵
        PID:3952

      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

        9594faf48d807c70154e86f4c9b62c78

        SHA1

        20c293a0e3b10fa448d19ed55c02584358ad08db

        SHA256

        2b4b5c8c48ea1de5135c5e0e552658040d166e8fce4e0b7ef3698c5709fc7ae5

        SHA512

        c57ebb6c00eddd9e5f74e0e4aad60d8274ae4e3979e7ddec112e00ca617c3db37e78710361e3d2bf88321f948ac2c2ad5d132b88b7eee7fe6699731ade153a09

      • C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe

        Filesize

        274KB

        MD5

        16720a0516a6e23f11a66b0b8066e5a6

        SHA1

        edf8d8c0eead559891856cf4a962705620dcb10e

        SHA256

        949fb9d3d6ec5bb789ec5bef973e12f4500365137f4c8b2e285b3dc6e9ac88f2

        SHA512

        c49dc5ea54c32ae5c5ff29ab2b997b9c930e9ce7d86d52993afd17e9816e73556e1c1e57b4e27f1db99442b414ebf22adb9966f7cca3a401ca6c7f85e9d0002e

      • C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2344-148-0x0000020668D90000-0x0000020668DC8000-memory.dmp

        Filesize

        224KB

      • memory/2344-149-0x0000020668D60000-0x0000020668D6E000-memory.dmp

        Filesize

        56KB

      • memory/2344-159-0x00000206694F0000-0x000002066950E000-memory.dmp

        Filesize

        120KB

      • memory/2344-158-0x0000020669590000-0x0000020669606000-memory.dmp

        Filesize

        472KB

      • memory/2344-157-0x00000206694B0000-0x00000206694BC000-memory.dmp

        Filesize

        48KB

      • memory/2344-154-0x0000020669CB0000-0x000002066A1D8000-memory.dmp

        Filesize

        5.2MB

      • memory/2344-153-0x0000020669490000-0x00000206694B2000-memory.dmp

        Filesize

        136KB

      • memory/2344-151-0x0000020669470000-0x000002066947A000-memory.dmp

        Filesize

        40KB

      • memory/2344-152-0x0000020669720000-0x0000020669782000-memory.dmp

        Filesize

        392KB

      • memory/2344-150-0x0000020668D80000-0x0000020668D88000-memory.dmp

        Filesize

        32KB

      • memory/2344-130-0x0000020646600000-0x0000020649E34000-memory.dmp

        Filesize

        56.2MB

      • memory/2344-131-0x0000020664530000-0x000002066463A000-memory.dmp

        Filesize

        1.0MB

      • memory/2344-132-0x0000020664510000-0x0000020664520000-memory.dmp

        Filesize

        64KB

      • memory/2344-133-0x0000020664650000-0x000002066465C000-memory.dmp

        Filesize

        48KB

      • memory/2344-134-0x0000020664640000-0x0000020664654000-memory.dmp

        Filesize

        80KB

      • memory/2344-135-0x00000206646B0000-0x00000206646D4000-memory.dmp

        Filesize

        144KB

      • memory/2344-136-0x0000020664830000-0x000002066483A000-memory.dmp

        Filesize

        40KB

      • memory/2344-138-0x0000020664890000-0x0000020664942000-memory.dmp

        Filesize

        712KB

      • memory/2344-137-0x0000020664860000-0x000002066488A000-memory.dmp

        Filesize

        168KB

      • memory/2344-139-0x0000020664990000-0x00000206649E0000-memory.dmp

        Filesize

        320KB

      • memory/2344-140-0x00000206649E0000-0x0000020664A02000-memory.dmp

        Filesize

        136KB

      • memory/2344-141-0x00000206644F0000-0x00000206644FA000-memory.dmp

        Filesize

        40KB

      • memory/2344-145-0x0000020664A10000-0x0000020664D10000-memory.dmp

        Filesize

        3.0MB

      • memory/2344-147-0x0000020669450000-0x0000020669458000-memory.dmp

        Filesize

        32KB

      • memory/3800-112-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3800-51-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3800-35-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3800-170-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/4756-129-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4756-128-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/5000-2-0x0000000004850000-0x00000000048BC000-memory.dmp

        Filesize

        432KB

      • memory/5000-29-0x0000000004850000-0x00000000048BC000-memory.dmp

        Filesize

        432KB

      • memory/5000-1-0x0000000002BD0000-0x0000000002CD0000-memory.dmp

        Filesize

        1024KB

      • memory/5000-27-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/5000-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5000-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB