Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 16:00

General

  • Target

    78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe

  • Size

    373KB

  • MD5

    2b0451249a3de6aa04149b3d3ef71415

  • SHA1

    08471abb7ed21e22154044f99efda14e13ed8b96

  • SHA256

    78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d

  • SHA512

    2df244c1784d07eec3d307ad99b5062c58768cd2ffdb5cec4cab40241214f66b0846ae3b730c8fccd71c51abf1366ec263137c221f5084c38dda856d1e105192

  • SSDEEP

    6144:rTePZlPmlhKy8Z7Hejcr9mg7OWB2GhXJdv4Ub88F3YXCfYvPoyogzTxvc:rTePHIhKbDrdvfQ8RmCgvloUtc

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 26 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\78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe
    "C:\Users\Admin\AppData\Local\Temp\78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Users\Admin\AppData\Local\Temp\u16k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u16k.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2860
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 2400
        3⤵
        • Program crash
        PID:2240
    • C:\Users\Admin\AppData\Local\Temp\u16k.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u16k.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:3584
      • 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:4892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1532 -s 1160
      2⤵
      • Program crash
      PID:5016
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1532 -ip 1532
    1⤵
      PID:3348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2860 -ip 2860
      1⤵
        PID:1096

      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

        143094d7d401895e7bd366c8115f534a

        SHA1

        ea7818d367be7cea81bfab71232e2e30bafd2de0

        SHA256

        4fd93e47ed66c105baa4b61a86100fda6a005e63dc9a8052375a23b280e9cc0d

        SHA512

        07b6b8c71fa0b7c3ae39219d291d4a79eb7b64a30c7f53fd5d9cea74d47a339c66994de213a0d213c638817ab72bca93d4cc612e7e518c93761d83f18f232edb

      • C:\Users\Admin\AppData\Local\Temp\u16k.0.exe

        Filesize

        231KB

        MD5

        7ef8dd4292b7d2ece55b9db53d22ed30

        SHA1

        6d9316eccdc762e694ebb2950057ddb672a80953

        SHA256

        f9ad11b6e4e476c6322766fad52633e3d7419ba96b74899188c26b5b669ff18b

        SHA512

        5f154d79b1df078c95529a48c478771fae9330d47f8abc73a7e68978718fef3793904f3830621d53dc68b86dae53a540bc809da24495696ae5304d91350fa80c

      • C:\Users\Admin\AppData\Local\Temp\u16k.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1532-13-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/1532-29-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/1532-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1532-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1532-1-0x00000000026D0000-0x00000000027D0000-memory.dmp

        Filesize

        1024KB

      • memory/1532-2-0x00000000041B0000-0x000000000421C000-memory.dmp

        Filesize

        432KB

      • memory/2860-50-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/2860-51-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2860-84-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/2860-170-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/3584-85-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3584-97-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4892-110-0x000002B028360000-0x000002B02836A000-memory.dmp

        Filesize

        40KB

      • memory/4892-129-0x000002B02CCE0000-0x000002B02CCEE000-memory.dmp

        Filesize

        56KB

      • memory/4892-108-0x000002B00F940000-0x000002B00F954000-memory.dmp

        Filesize

        80KB

      • memory/4892-111-0x000002B0287E0000-0x000002B028892000-memory.dmp

        Filesize

        712KB

      • memory/4892-112-0x000002B028450000-0x000002B02847A000-memory.dmp

        Filesize

        168KB

      • memory/4892-114-0x000002B028930000-0x000002B028952000-memory.dmp

        Filesize

        136KB

      • memory/4892-113-0x000002B0288E0000-0x000002B028930000-memory.dmp

        Filesize

        320KB

      • memory/4892-118-0x000002B028430000-0x000002B02843A000-memory.dmp

        Filesize

        40KB

      • memory/4892-122-0x000002B028960000-0x000002B028C60000-memory.dmp

        Filesize

        3.0MB

      • memory/4892-124-0x000002B02C610000-0x000002B02C618000-memory.dmp

        Filesize

        32KB

      • memory/4892-130-0x000002B02CD00000-0x000002B02CD08000-memory.dmp

        Filesize

        32KB

      • memory/4892-109-0x000002B028340000-0x000002B028364000-memory.dmp

        Filesize

        144KB

      • memory/4892-128-0x000002B02CD10000-0x000002B02CD48000-memory.dmp

        Filesize

        224KB

      • memory/4892-132-0x000002B02DE50000-0x000002B02DEB2000-memory.dmp

        Filesize

        392KB

      • memory/4892-133-0x000002B02DEB0000-0x000002B02DED2000-memory.dmp

        Filesize

        136KB

      • memory/4892-131-0x000002B02DE30000-0x000002B02DE3A000-memory.dmp

        Filesize

        40KB

      • memory/4892-106-0x000002B00F8D0000-0x000002B00F8E0000-memory.dmp

        Filesize

        64KB

      • memory/4892-107-0x000002B028330000-0x000002B02833C000-memory.dmp

        Filesize

        48KB

      • memory/4892-142-0x000002B02E400000-0x000002B02E928000-memory.dmp

        Filesize

        5.2MB

      • memory/4892-154-0x000002B02DBB0000-0x000002B02DBBC000-memory.dmp

        Filesize

        48KB

      • memory/4892-158-0x000002B02DC90000-0x000002B02DD06000-memory.dmp

        Filesize

        472KB

      • memory/4892-105-0x000002B028590000-0x000002B02869A000-memory.dmp

        Filesize

        1.0MB

      • memory/4892-169-0x000002B028C80000-0x000002B028C9E000-memory.dmp

        Filesize

        120KB

      • memory/4892-98-0x000002B00A4F0000-0x000002B00DD24000-memory.dmp

        Filesize

        56.2MB