Overview

overview

10

Static

static

3

6H1CivMs9t.exe

windows7-x64

10

6H1CivMs9t.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08/09/2024, 23:47

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General

  • Target

    6H1CivMs9t.exe

  • Size

    236KB

  • MD5

    01d1940134ae9d585ee7faf141bba0cc

  • SHA1

    2c90ab735cf10e553347d28c1e292aed821ae3d3

  • SHA256

    a92d606e564f9e5f25a79c2d0745ff02ba1f65f062c025fc990da89c46e78038

  • SHA512

    7abe0dcb2c8850e7f598c712da1d9280e7723fb45fad58cbf5308e9d6e07701e6a88016f2cdb93d047ffe4b4453daf5ff0815b861d4473d65c8cd754ca27778e

  • SSDEEP

    3072:zFS8of+VlxyR25+BQocwlzrhMsbXvkP7xqZw0A5TuQTdzZ/pjDXYattjT4f:Sf+VlxyR25Noluq88wFuQTdJJXLm

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

  • Tofsee

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

    trojantofsee
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • Creates new service(s) 2 TTPs
    persistenceexecution
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 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.

    persistenceprivilege_escalation
  • 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.

    discovery
  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6H1CivMs9t.exe
    "C:\Users\Admin\AppData\Local\Temp\6H1CivMs9t.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lysortji\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2508
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\knkduwqg.exe" C:\Windows\SysWOW64\lysortji\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2060
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create lysortji binPath= "C:\Windows\SysWOW64\lysortji\knkduwqg.exe /d\"C:\Users\Admin\AppData\Local\Temp\6H1CivMs9t.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1692
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description lysortji "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2740
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start lysortji
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2844
    • 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:2892
  • C:\Windows\SysWOW64\lysortji\knkduwqg.exe
    C:\Windows\SysWOW64\lysortji\knkduwqg.exe /d"C:\Users\Admin\AppData\Local\Temp\6H1CivMs9t.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:2824

Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        System Services

        1
        T1569

        Service Execution

        1
        T1569.002

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        2
        T1543

        Windows Service

        2
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        2
        T1543

        Windows Service

        2
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Defense Evasion

        Impair Defenses

        2
        T1562

        Disable or Modify System Firewall

        1
        T1562.004

        Disable or Modify Tools

        1
        T1562.001

        Modify Registry

        2
        T1112

        Credential Access

        Discovery

        System Information Discovery

        1
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

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

          14.7MB

          MD5

          5c75078d00723547d4340b65880d19a3

          SHA1

          d5757d2f8f3b698fe6077709087760c1c68decb7

          SHA256

          f6674c9ead365155f94282c1387364127a0938ca3c55b394765810ab3a74c359

          SHA512

          4c8c512877bbde7e60aaa41dc7ab9c5c13eb2ba24e3e64370c1808bc4b0e60a16c3ee72d05420b476e7e505eab36208e556c8a0ec6b62dc14b24d08f4e089191

          Download Submit

        • memory/2824-8-0x0000000000080000-0x0000000000095000-memory.dmp

          Filesize

          84KB

          Download

        • memory/2824-11-0x0000000000080000-0x0000000000095000-memory.dmp

          Filesize

          84KB

          Download

        • memory/2824-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2824-17-0x0000000000080000-0x0000000000095000-memory.dmp

          Filesize

          84KB

          Download

        • memory/2824-18-0x0000000000080000-0x0000000000095000-memory.dmp

          Filesize

          84KB

          Download

        • memory/2876-13-0x0000000000400000-0x0000000002B5B000-memory.dmp

          Filesize

          39.4MB

          Download

        • memory/3004-3-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

          Download

        • memory/3004-1-0x0000000002C40000-0x0000000002D40000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/3004-2-0x0000000000220000-0x0000000000233000-memory.dmp

          Filesize

          76KB

          Download

        • memory/3004-16-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

          Download

        • memory/3004-15-0x0000000000220000-0x0000000000233000-memory.dmp

          Filesize

          76KB

          Download

        • memory/3004-14-0x0000000000400000-0x0000000002B5B000-memory.dmp

          Filesize

          39.4MB

          Download