Analysis

  • max time kernel
    132s
  • max time network
    136s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-05-2024 19:17

General

  • Target

    4243e3e23ae7b7c364520679604545d6a4b43808839e2e332b70e0e697fe58de.exe

  • Size

    407KB

  • MD5

    7e2e448c99f23909046cc3a8c74a2d44

  • SHA1

    57ca1a2ca72bff3ff52d4478ccbb14a1af5130cf

  • SHA256

    4243e3e23ae7b7c364520679604545d6a4b43808839e2e332b70e0e697fe58de

  • SHA512

    8e5bbfbcb1eafabf43e795f0bedcb6a1b27ac7344cb25f331100984cd77b7af187dd3c6193ab61862afed7dd544660530bbdafdf35aff31d1fdd24438c6f3bea

  • SSDEEP

    6144:OYNTarFOqusAPfwQzYGEfmEPOa9oBWPjuz3UlrAM0WHff:nNkFnAHZvEfmEPOak0jMgr7f

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 25 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\4243e3e23ae7b7c364520679604545d6a4b43808839e2e332b70e0e697fe58de.exe
    "C:\Users\Admin\AppData\Local\Temp\4243e3e23ae7b7c364520679604545d6a4b43808839e2e332b70e0e697fe58de.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Users\Admin\AppData\Local\Temp\u3o8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3o8.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3916
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 2396
        3⤵
        • Program crash
        PID:880
    • C:\Users\Admin\AppData\Local\Temp\u3o8.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3o8.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2980
      • 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:3044
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 1176
      2⤵
      • Program crash
      PID:780
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4760 -ip 4760
    1⤵
      PID:4776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3916 -ip 3916
      1⤵
        PID:3088

      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

        7162f7f1fd625b0d31590b39ded08593

        SHA1

        dc648244a20e0e6e94f1ede7f66a2367ae73d4a9

        SHA256

        4298b8a38a2152ffd91dd2ce9d2c22f6db4d32e7463d417d7936509363aec2a3

        SHA512

        529f24a656f18f81ca1a8cb94e1ce77eea82a3c52c7eadd4a1a241421e37bbdd5a13ad0fb0f0be035e30951447346d4e433c25612238a61d58ac7af96d693571

      • C:\Users\Admin\AppData\Local\Temp\u3o8.0.exe

        Filesize

        266KB

        MD5

        2fa41a8338ed50713e077c198523130f

        SHA1

        079f8148144a4c24acd87f6a30b6baf83ed79576

        SHA256

        fe4b567f7d0775b4b0b44454d8fc2223bdd4a1311b2862687960e402c38b0693

        SHA512

        499c72b67519ec0b70a9d6c0453bff2754e968d048ed9ad95ab8d3b2e443427178abc9e1b64b9e5b5cb000bd7c880559012d21ec7368726794727662995c09b5

      • C:\Users\Admin\AppData\Local\Temp\u3o8.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2980-89-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2980-50-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3044-125-0x0000019E1EF20000-0x0000019E1EF42000-memory.dmp

        Filesize

        136KB

      • memory/3044-116-0x0000019E81880000-0x0000019E81888000-memory.dmp

        Filesize

        32KB

      • memory/3044-135-0x0000019E81960000-0x0000019E8197E000-memory.dmp

        Filesize

        120KB

      • memory/3044-130-0x0000019E81A40000-0x0000019E81AB6000-memory.dmp

        Filesize

        472KB

      • memory/3044-99-0x0000019E7E030000-0x0000019E81864000-memory.dmp

        Filesize

        56.2MB

      • memory/3044-100-0x0000019E1A720000-0x0000019E1A82A000-memory.dmp

        Filesize

        1.0MB

      • memory/3044-102-0x0000019E1A6F0000-0x0000019E1A6FC000-memory.dmp

        Filesize

        48KB

      • memory/3044-101-0x0000019E1A6C0000-0x0000019E1A6D0000-memory.dmp

        Filesize

        64KB

      • memory/3044-103-0x0000019E1A6E0000-0x0000019E1A6F4000-memory.dmp

        Filesize

        80KB

      • memory/3044-104-0x0000019E1A870000-0x0000019E1A894000-memory.dmp

        Filesize

        144KB

      • memory/3044-105-0x0000019E1A9F0000-0x0000019E1A9FA000-memory.dmp

        Filesize

        40KB

      • memory/3044-106-0x0000019E1AA10000-0x0000019E1AA3A000-memory.dmp

        Filesize

        168KB

      • memory/3044-107-0x0000019E1AA50000-0x0000019E1AB02000-memory.dmp

        Filesize

        712KB

      • memory/3044-108-0x0000019E818C0000-0x0000019E81910000-memory.dmp

        Filesize

        320KB

      • memory/3044-109-0x0000019E81910000-0x0000019E81932000-memory.dmp

        Filesize

        136KB

      • memory/3044-110-0x0000019E01E30000-0x0000019E01E3A000-memory.dmp

        Filesize

        40KB

      • memory/3044-114-0x0000019E1AB00000-0x0000019E1AE00000-memory.dmp

        Filesize

        3.0MB

      • memory/3044-129-0x0000019E1EF40000-0x0000019E1EF4C000-memory.dmp

        Filesize

        48KB

      • memory/3044-117-0x0000019E81980000-0x0000019E819B8000-memory.dmp

        Filesize

        224KB

      • memory/3044-118-0x0000019E81890000-0x0000019E8189E000-memory.dmp

        Filesize

        56KB

      • memory/3044-122-0x0000019E818A0000-0x0000019E818A8000-memory.dmp

        Filesize

        32KB

      • memory/3044-123-0x0000019E1EF10000-0x0000019E1EF1A000-memory.dmp

        Filesize

        40KB

      • memory/3044-126-0x0000019E1FDA0000-0x0000019E202C8000-memory.dmp

        Filesize

        5.2MB

      • memory/3044-124-0x0000019E1F810000-0x0000019E1F872000-memory.dmp

        Filesize

        392KB

      • memory/3916-59-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB

      • memory/3916-134-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB

      • memory/3916-62-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3916-170-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB

      • memory/4760-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

        Filesize

        1024KB

      • memory/4760-33-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4760-27-0x0000000000400000-0x0000000002B23000-memory.dmp

        Filesize

        39.1MB

      • memory/4760-2-0x0000000002FE0000-0x000000000304C000-memory.dmp

        Filesize

        432KB

      • memory/4760-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB