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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2024, 12:50 UTC

General

  • Target

    JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe

  • Size

    272KB

  • MD5

    83b5776099c94810fb6f10211e135228

  • SHA1

    39847c224f60ab065f7811a9e358558162c83a20

  • SHA256

    ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec

  • SHA512

    9a7adbfb0ffb6654d05a2f38b2daf0b0e5a2b1840205c71396058fb6ace9151c880b9e491ba931d7ce8c8364fa266ee13a91595b0bfb2756ad111f73c6eae492

  • SSDEEP

    6144:5HB/PtD4M5G0tZwk4NF/MIPNVsuzbgwu6L7ITsqSigaTwVf:X/Pl4MU+V4DZVsunnn7s

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kikugurx\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2796
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rajrfxfo.exe" C:\Windows\SysWOW64\kikugurx\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2640
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create kikugurx binPath= "C:\Windows\SysWOW64\kikugurx\rajrfxfo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1968
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description kikugurx "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2556
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start kikugurx
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2788
    • 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:2608
  • C:\Windows\SysWOW64\kikugurx\rajrfxfo.exe
    C:\Windows\SysWOW64\kikugurx\rajrfxfo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2544
    • 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:2704

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
    20.76.201.171
    microsoft.com
    IN A
    20.231.239.246
    microsoft.com
    IN A
    20.70.246.20
    microsoft.com
    IN A
    20.236.44.162
    microsoft.com
    IN A
    20.112.250.133
  • 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
    52.101.11.0
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.42.0
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.40.26
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.8.49
  • flag-us
    DNS
    quadoil.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    quadoil.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
    mta5am0yahoodnsnet
    yahoo.com
    IN MX
    mta6�.
    yahoo.com
    IN MX
    mta7�.
  • flag-us
    DNS
    mta5.am0.yahoodns.net
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mta5.am0.yahoodns.net
    IN A
    Response
    mta5.am0.yahoodns.net
    IN A
    67.195.228.111
    mta5.am0.yahoodns.net
    IN A
    67.195.204.73
    mta5.am0.yahoodns.net
    IN A
    98.136.96.76
    mta5.am0.yahoodns.net
    IN A
    98.136.96.91
    mta5.am0.yahoodns.net
    IN A
    98.136.96.74
    mta5.am0.yahoodns.net
    IN A
    67.195.204.74
    mta5.am0.yahoodns.net
    IN A
    67.195.204.79
    mta5.am0.yahoodns.net
    IN A
    98.136.96.75
  • flag-us
    DNS
    lakeflex.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    lakeflex.ru
    IN A
    Response
  • 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
    142.250.27.27
    smtp.google.com
    IN A
    142.250.102.26
    smtp.google.com
    IN A
    142.250.27.26
    smtp.google.com
    IN A
    142.250.102.27
  • 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
  • 20.76.201.171:80
    microsoft.com
    svchost.exe
    190 B
    132 B
    4
    3
  • 52.101.11.0:25
    microsoft-com.mail.protection.outlook.com
    svchost.exe
    152 B
    3
  • 67.195.228.111:25
    mta5.am0.yahoodns.net
    svchost.exe
    152 B
    3
  • 142.250.27.27:25
    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

    20.76.201.171
    20.231.239.246
    20.70.246.20
    20.236.44.162
    20.112.250.133

  • 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

    52.101.11.0
    52.101.42.0
    52.101.40.26
    52.101.8.49

  • 8.8.8.8:53
    quadoil.ru
    dns
    svchost.exe
    56 B
    117 B
    1
    1

    DNS Request

    quadoil.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
    mta5.am0.yahoodns.net
    dns
    svchost.exe
    67 B
    195 B
    1
    1

    DNS Request

    mta5.am0.yahoodns.net

    DNS Response

    67.195.228.111
    67.195.204.73
    98.136.96.76
    98.136.96.91
    98.136.96.74
    67.195.204.74
    67.195.204.79
    98.136.96.75

  • 8.8.8.8:53
    lakeflex.ru
    dns
    svchost.exe
    57 B
    118 B
    1
    1

    DNS Request

    lakeflex.ru

  • 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

    142.250.27.27
    142.250.102.26
    142.250.27.26
    142.250.102.27

  • 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

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.0MB

    MD5

    2a2ffd1e27a6df0fd8b557824091c591

    SHA1

    e0f3b422568c05ecb19d0c54691a4fbbb255b847

    SHA256

    028c0d3abb9baf50577c647bce7aa139c2acaa279e5100eb1456c9811844ea9d

    SHA512

    04ed7c2eebfffbdabe4b2b985e2f57e2e32a4d9084533b7c4acb851d611ce7dc8991f5379c7847431158d8acc59ccd0c89d3af17273c19145daf5240074eb82f

  • memory/2132-7-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2132-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2132-1-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB

  • memory/2132-6-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2132-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2132-8-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB

  • memory/2132-0-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2544-16-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2704-13-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2704-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2704-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2704-10-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2704-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

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