Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2024 06:47

General

  • Target

    e04e60efc406faefb13b0fd319e2251f_JaffaCakes118.exe

  • Size

    632KB

  • MD5

    e04e60efc406faefb13b0fd319e2251f

  • SHA1

    9e0f221915f81e639a52eeaf76dc96f95ab05e4d

  • SHA256

    61cb3345fb32835c6be148fbcd92812c80cc168affea782936055ff62ca4dd4b

  • SHA512

    07b848691b0976b40411672b98030de36b4f10f1181f248f3150600a336cf3461ba1a2af2484399d2c43faeb5c474146edb206430990ca90f36684444cb77485

  • SSDEEP

    12288:0pacPt3R/dbmXv4k8OIpLaNrv/TFUVo6QyPa+DAB3YWLSiRw3K:K1KXL8hYFv/TmnibBzdp

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sys2021.linkpc.net:11940

23.94.82.41:11940

Mutex

de7e01ad-963b-4e14-81aa-08dfb351f0fe

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    23.94.82.41

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-04-24T08:14:59.254967636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    11940

  • default_group

    Do

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    de7e01ad-963b-4e14-81aa-08dfb351f0fe

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sys2021.linkpc.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Extracted

Family

asyncrat

Version

0.5.2

C2

sys2021.linkpc.net:6606

Mutex

cd6-c2e0e3fbeef6

Attributes
  • delay

    0

  • install

    true

  • install_file

    notepad.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Nanocore family
  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 25 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\e04e60efc406faefb13b0fd319e2251f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e04e60efc406faefb13b0fd319e2251f_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4148
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Vzvcyragywwvopuhbwi.vbs"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5220
      • C:\Users\Admin\AppData\Local\Temp\Edthlzkghxuafibmavvextdclient startup.exe
        "C:\Users\Admin\AppData\Local\Temp\Edthlzkghxuafibmavvextdclient startup.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:6212
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\tmp7B36.tmp.vbs"
          4⤵
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:5376
          • C:\Windows\System32\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /sc onlogon /rl highest /tn notepad.exe /tr "C:\Users\Admin\AppData\Roaming\notepad.exe
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:5316
        • C:\Users\Admin\AppData\Roaming\notepad.exe
          "C:\Users\Admin\AppData\Roaming\notepad.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:5468
    • C:\Users\Admin\AppData\Local\Temp\e04e60efc406faefb13b0fd319e2251f_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\e04e60efc406faefb13b0fd319e2251f_JaffaCakes118.exe
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1700
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:5784
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:620

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e04e60efc406faefb13b0fd319e2251f_JaffaCakes118.exe.log

        Filesize

        1KB

        MD5

        7ebe314bf617dc3e48b995a6c352740c

        SHA1

        538f643b7b30f9231a3035c448607f767527a870

        SHA256

        48178f884b8a4dd96e330b210b0530667d9473a7629fc6b4ad12b614bf438ee8

        SHA512

        0ba9d8f4244c15285e254d27b4bff7c49344ff845c48bc0bf0d8563072fab4d6f7a6abe6b6742e8375a08e9a3b3e5d5dc4937ab428dbe2dd8e62892fda04507e

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        0774a05ce5ee4c1af7097353c9296c62

        SHA1

        658ff96b111c21c39d7ad5f510fb72f9762114bb

        SHA256

        d9c5347ed06755feeb0615f1671f6b91e2718703da0dbc4b0bd205cbd2896dd4

        SHA512

        104d69fc4f4aaa5070b78ada130228939c7e01436351166fe51fe2da8a02f9948e6d92dd676f62820da1813872b91411e2f863c9a98a760581ec34d4aa354994

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

        Filesize

        19KB

        MD5

        cd56fba410186fe87b4c93c78d23d5d1

        SHA1

        b2dfabb33a6145b34a9b8b9b702773999e5bf2fb

        SHA256

        396351b7f9244b6bed568b31437a88b9f10ec106fc7663e30a98ec72e42fab31

        SHA512

        dab05d18784529fb9590c59c98b58980921ffcfd6c8ab78422ad30d5046b5194d707af8d514d9a5000e343bd0d5bfc8861cb046b38c522e3a11b37606f7b0dee

      • C:\Users\Admin\AppData\Local\Temp\Edthlzkghxuafibmavvextdclient startup.exe

        Filesize

        119KB

        MD5

        7c065aaedcccc8330d30dd098e2d080a

        SHA1

        d8e1a9251e02062264229d2b92366b33cba3615e

        SHA256

        8892f38077963d30d807e405177ca889e327e447473066ba7dbddacc58a5562c

        SHA512

        a193e0f337a16965726b0481324eda249e9f53ab0d24b48d63d736be35ff7208cab29fb6a5a6fc7c31dc34ddbba5423a2d4d4c1ecaf1f50c29f336c1fcb12469

      • C:\Users\Admin\AppData\Local\Temp\Vzvcyragywwvopuhbwi.vbs

        Filesize

        125B

        MD5

        e43caabb477eff9358b404c0658ea4b8

        SHA1

        ff9530a0a971b26d85323abe290427a32f135fe4

        SHA256

        796965acba70efdb0bc8d6633f5d35e745ce49d09f6600d8ff151545563c9430

        SHA512

        7eb32002d2a08d9342020bb0f073d21772f9569b9133a0f36334f3acaaefab2aab8c52f3b27ee4fc23148bab3ebd8cbdc15f7a1656ae9bf67997e3cc891383a8

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_amzpmd21.4df.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp7B36.tmp.vbs

        Filesize

        216B

        MD5

        3fd8d047dc23e8fe24f9cf58c7cd2b55

        SHA1

        57cf93639c8ed34f5bc06c4a7d795d712d3b8648

        SHA256

        4b207de241dc5c2ae5904d574fcccfbd2a85153c7b13f667055e96d15ad9eaec

        SHA512

        5d36a0ac43f312f8a6fc51e290aa56c687b1ff9a813f87a3f019452fc4db2a25ecb7596eda917db2748257c6d814eb14668b8ba16a1f630f0ae36723a6a35d8b

      • memory/1700-1997-0x00000000063B0000-0x00000000063BA000-memory.dmp

        Filesize

        40KB

      • memory/1700-1996-0x00000000056F0000-0x000000000570E000-memory.dmp

        Filesize

        120KB

      • memory/1700-1995-0x0000000005550000-0x000000000555A000-memory.dmp

        Filesize

        40KB

      • memory/1700-1989-0x0000000005560000-0x00000000055FC000-memory.dmp

        Filesize

        624KB

      • memory/1700-1988-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2384-67-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-57-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-1-0x00000000002A0000-0x0000000000344000-memory.dmp

        Filesize

        656KB

      • memory/2384-2-0x00000000051D0000-0x0000000005774000-memory.dmp

        Filesize

        5.6MB

      • memory/2384-3-0x0000000004D00000-0x0000000004D92000-memory.dmp

        Filesize

        584KB

      • memory/2384-4-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2384-5-0x0000000004EA0000-0x0000000004EAA000-memory.dmp

        Filesize

        40KB

      • memory/2384-1987-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2384-54-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-55-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-79-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-33-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

        Filesize

        4KB

      • memory/2384-34-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2384-95-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-113-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-59-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-63-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-65-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

        Filesize

        4KB

      • memory/2384-69-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-52-0x0000000005EF0000-0x0000000005F64000-memory.dmp

        Filesize

        464KB

      • memory/2384-53-0x0000000006A90000-0x0000000006B04000-memory.dmp

        Filesize

        464KB

      • memory/2384-61-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-71-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-117-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-115-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-111-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-109-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-107-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-105-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-103-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-101-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-99-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-97-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-93-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-91-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-89-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-87-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-85-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-83-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-81-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-77-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-75-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2384-73-0x0000000006A90000-0x0000000006AFE000-memory.dmp

        Filesize

        440KB

      • memory/2972-28-0x0000000006A20000-0x0000000006A42000-memory.dmp

        Filesize

        136KB

      • memory/2972-24-0x00000000064D0000-0x00000000064EE000-memory.dmp

        Filesize

        120KB

      • memory/2972-9-0x0000000005770000-0x0000000005D98000-memory.dmp

        Filesize

        6.2MB

      • memory/2972-12-0x00000000055D0000-0x0000000005636000-memory.dmp

        Filesize

        408KB

      • memory/2972-23-0x0000000005DA0000-0x00000000060F4000-memory.dmp

        Filesize

        3.3MB

      • memory/2972-11-0x0000000005430000-0x0000000005452000-memory.dmp

        Filesize

        136KB

      • memory/2972-10-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2972-26-0x0000000006AA0000-0x0000000006B36000-memory.dmp

        Filesize

        600KB

      • memory/2972-8-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2972-29-0x00000000086E0000-0x0000000008D5A000-memory.dmp

        Filesize

        6.5MB

      • memory/2972-13-0x0000000005640000-0x00000000056A6000-memory.dmp

        Filesize

        408KB

      • memory/2972-25-0x0000000006510000-0x000000000655C000-memory.dmp

        Filesize

        304KB

      • memory/2972-32-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2972-27-0x00000000069D0000-0x00000000069EA000-memory.dmp

        Filesize

        104KB

      • memory/2972-7-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/2972-6-0x0000000002BD0000-0x0000000002C06000-memory.dmp

        Filesize

        216KB

      • memory/4148-37-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/4148-39-0x0000000005AC0000-0x0000000005E14000-memory.dmp

        Filesize

        3.3MB

      • memory/4148-36-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/4148-38-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/4148-51-0x0000000074EA0000-0x0000000075650000-memory.dmp

        Filesize

        7.7MB

      • memory/6212-1992-0x0000000000A80000-0x0000000000AA4000-memory.dmp

        Filesize

        144KB