Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-12-2024 22:14

General

  • Target

    JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe

  • Size

    306KB

  • MD5

    0661057150ee41d5430b7cdfa59b9151

  • SHA1

    9a2954d4b64ed1a2347fd601f18f87d36a7306d3

  • SHA256

    f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e

  • SHA512

    f88700b8b61a27c34ff8dabd227dceef34909c403d76abbe70d9d11112d08c1b672e4acae8555cc50e3542166ccf34a90ad3dccf2d79cc90cb89fbe1bb46acfb

  • SSDEEP

    6144:CPrWeZIupcl/Yi3FshG74zgmlL6tZeXuZU8:iWeZIupcl1FKG7ogILTXuC

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qurtaigi\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oezlfrvn.exe" C:\Windows\SysWOW64\qurtaigi\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2812
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create qurtaigi binPath= "C:\Windows\SysWOW64\qurtaigi\oezlfrvn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2892
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description qurtaigi "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2820
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start qurtaigi
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1748
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2564
  • C:\Windows\SysWOW64\qurtaigi\oezlfrvn.exe
    C:\Windows\SysWOW64\qurtaigi\oezlfrvn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2084

Network

  • flag-us
    DNS
    microsoft.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    microsoft.com
    IN A
    Response
    microsoft.com
    IN A
    20.231.239.246
    microsoft.com
    IN A
    20.112.250.133
    microsoft.com
    IN A
    20.76.201.171
    microsoft.com
    IN A
    20.236.44.162
    microsoft.com
    IN A
    20.70.246.20
  • flag-us
    DNS
    microsoft.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    microsoft.com
    IN MX
    Response
    microsoft.com
    IN MX
    microsoft-commail protectionoutlook�
  • flag-us
    DNS
    microsoft-com.mail.protection.outlook.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    microsoft-com.mail.protection.outlook.com
    IN A
    Response
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.42.0
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.8.49
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.40.26
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.11.0
  • flag-us
    DNS
    defeatwax.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    defeatwax.ru
    IN A
    Response
  • flag-us
    DNS
    yahoo.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    yahoo.com
    IN MX
    Response
    yahoo.com
    IN MX
    mta6am0yahoodnsnet
    yahoo.com
    IN MX
    mta7�.
    yahoo.com
    IN MX
    mta5�.
  • flag-us
    DNS
    mta6.am0.yahoodns.net
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mta6.am0.yahoodns.net
    IN A
    Response
    mta6.am0.yahoodns.net
    IN A
    67.195.228.106
    mta6.am0.yahoodns.net
    IN A
    98.136.96.91
    mta6.am0.yahoodns.net
    IN A
    67.195.204.79
    mta6.am0.yahoodns.net
    IN A
    67.195.228.94
    mta6.am0.yahoodns.net
    IN A
    67.195.228.109
    mta6.am0.yahoodns.net
    IN A
    98.136.96.76
    mta6.am0.yahoodns.net
    IN A
    67.195.204.73
    mta6.am0.yahoodns.net
    IN A
    67.195.204.72
  • flag-us
    DNS
    google.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    google.com
    IN MX
    Response
    google.com
    IN MX
    smtp�
  • flag-us
    DNS
    smtp.google.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    smtp.google.com
    IN A
    Response
    smtp.google.com
    IN A
    142.250.27.26
    smtp.google.com
    IN A
    142.250.27.27
    smtp.google.com
    IN A
    142.250.102.27
    smtp.google.com
    IN A
    142.250.102.26
  • flag-us
    DNS
    mail.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mail.ru
    IN MX
    Response
    mail.ru
    IN MX
    mxs�
  • flag-us
    DNS
    mxs.mail.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mxs.mail.ru
    IN A
    Response
    mxs.mail.ru
    IN A
    94.100.180.31
    mxs.mail.ru
    IN A
    217.69.139.150
  • flag-us
    DNS
    refabyd.info
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    refabyd.info
    IN A
    Response
  • 20.231.239.246:80
    microsoft.com
    svchost.exe
    190 B
    92 B
    4
    2
  • 52.101.42.0:25
    microsoft-com.mail.protection.outlook.com
    svchost.exe
    152 B
    3
  • 67.195.228.106:25
    mta6.am0.yahoodns.net
    svchost.exe
    152 B
    3
  • 142.250.27.26:25
    smtp.google.com
    svchost.exe
    152 B
    3
  • 94.100.180.31:25
    mxs.mail.ru
    svchost.exe
    152 B
    3
  • 8.8.8.8:53
    microsoft.com
    dns
    svchost.exe
    59 B
    139 B
    1
    1

    DNS Request

    microsoft.com

    DNS Response

    20.231.239.246
    20.112.250.133
    20.76.201.171
    20.236.44.162
    20.70.246.20

  • 8.8.8.8:53
    microsoft.com
    dns
    svchost.exe
    59 B
    113 B
    1
    1

    DNS Request

    microsoft.com

  • 8.8.8.8:53
    microsoft-com.mail.protection.outlook.com
    dns
    svchost.exe
    87 B
    151 B
    1
    1

    DNS Request

    microsoft-com.mail.protection.outlook.com

    DNS Response

    52.101.42.0
    52.101.8.49
    52.101.40.26
    52.101.11.0

  • 8.8.8.8:53
    defeatwax.ru
    dns
    svchost.exe
    58 B
    119 B
    1
    1

    DNS Request

    defeatwax.ru

  • 8.8.8.8:53
    yahoo.com
    dns
    svchost.exe
    55 B
    134 B
    1
    1

    DNS Request

    yahoo.com

  • 8.8.8.8:53
    mta6.am0.yahoodns.net
    dns
    svchost.exe
    67 B
    195 B
    1
    1

    DNS Request

    mta6.am0.yahoodns.net

    DNS Response

    67.195.228.106
    98.136.96.91
    67.195.204.79
    67.195.228.94
    67.195.228.109
    98.136.96.76
    67.195.204.73
    67.195.204.72

  • 8.8.8.8:53
    google.com
    dns
    svchost.exe
    56 B
    77 B
    1
    1

    DNS Request

    google.com

  • 8.8.8.8:53
    smtp.google.com
    dns
    svchost.exe
    61 B
    125 B
    1
    1

    DNS Request

    smtp.google.com

    DNS Response

    142.250.27.26
    142.250.27.27
    142.250.102.27
    142.250.102.26

  • 8.8.8.8:53
    mail.ru
    dns
    svchost.exe
    53 B
    73 B
    1
    1

    DNS Request

    mail.ru

  • 8.8.8.8:53
    mxs.mail.ru
    dns
    svchost.exe
    57 B
    89 B
    1
    1

    DNS Request

    mxs.mail.ru

    DNS Response

    94.100.180.31
    217.69.139.150

  • 8.8.8.8:53
    refabyd.info
    dns
    svchost.exe
    58 B
    137 B
    1
    1

    DNS Request

    refabyd.info

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    11.2MB

    MD5

    5fc5576443864ed1da6c56b27c84ce88

    SHA1

    274d036ad15f17a20cae2186212d426850bbcfaa

    SHA256

    e4e17e94e6b9edb28291327609b0c03e20fe462b48b47a8f550db984c3f2c988

    SHA512

    572a95178667bdae3563ff06026b6675a2f1245efd30e8967d60275c2075bbf3383f05863d4e3985fe83e6160dfa3dec501b169a3eae1fded666d2924babf166

  • memory/2084-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2084-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2084-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2084-9-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2084-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2672-2-0x0000000000400000-0x0000000002B94000-memory.dmp

    Filesize

    39.6MB

  • memory/2672-3-0x0000000000400000-0x0000000002B94000-memory.dmp

    Filesize

    39.6MB

  • memory/2672-8-0x0000000000400000-0x0000000002B94000-memory.dmp

    Filesize

    39.6MB

  • memory/2884-15-0x0000000000400000-0x0000000002B94000-memory.dmp

    Filesize

    39.6MB

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