Overview

overview

10

Static

static

dridex

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    23-01-2022 11:53

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General

  • Target

    40fe2e71e8a2b1dacda5bfdd2e718281cadfb2fca96286bb617ed16183a4bb31.exe

  • Size

    267KB

  • MD5

    9e4eb301978e7ea27f07010af775b19c

  • SHA1

    a9177d777d109264e4ab11f9e8ed6fb1b6ebefee

  • SHA256

    40fe2e71e8a2b1dacda5bfdd2e718281cadfb2fca96286bb617ed16183a4bb31

  • SHA512

    01406a90ba18e331c76f1dbc1074e9d27f1913d4727eee02d7803a64621e9bf4b4f31f23f3f4ff8451c2776ccf2290d7c72c9b470cddd585916045840be0e75e

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

ovicrush.cn

Signatures

  • Tofsee

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

    trojantofsee
  • Windows security bypass 2 TTPs
    evasiontrojan
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

    minerxmrig
  • XMRig Miner Payload 2 IoCs
    miner
  • Creates new service(s) 1 TTPs
    persistence
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Sets service image path in registry 2 TTPs
    persistence
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe

    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). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40fe2e71e8a2b1dacda5bfdd2e718281cadfb2fca96286bb617ed16183a4bb31.exe
    "C:\Users\Admin\AppData\Local\Temp\40fe2e71e8a2b1dacda5bfdd2e718281cadfb2fca96286bb617ed16183a4bb31.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mhdswbdk\
      2⤵
        PID:2156
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hgvilghb.exe" C:\Windows\SysWOW64\mhdswbdk\
        2⤵
          PID:2668
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create mhdswbdk binPath= "C:\Windows\SysWOW64\mhdswbdk\hgvilghb.exe /d\"C:\Users\Admin\AppData\Local\Temp\40fe2e71e8a2b1dacda5bfdd2e718281cadfb2fca96286bb617ed16183a4bb31.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:2400
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description mhdswbdk "wifi internet conection"
            2⤵
              PID:2952
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start mhdswbdk
              2⤵
                PID:2500
              • 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⤵
                  PID:3956
              • C:\Windows\SysWOW64\mhdswbdk\hgvilghb.exe
                C:\Windows\SysWOW64\mhdswbdk\hgvilghb.exe /d"C:\Users\Admin\AppData\Local\Temp\40fe2e71e8a2b1dacda5bfdd2e718281cadfb2fca96286bb617ed16183a4bb31.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:528
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Deletes itself
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  • Suspicious use of WriteProcessMemory
                  PID:2124
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1392

              Network

              MITRE ATT&CK Matrix ATT&CK v6

              Initial Access

              Execution

              Persistence

              New Service

              1
              T1050

              Modify Existing Service

              1
              T1031

              Registry Run Keys / Startup Folder

              1
              T1060

              Privilege Escalation

              New Service

              1
              T1050

              Defense Evasion

              Disabling Security Tools

              1
              T1089

              Modify Registry

              2
              T1112

              Credential Access

              Discovery

              System Information Discovery

              1
              T1082

              Lateral Movement

              Collection

              Exfiltration

              Command and Control

              Impact

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\hgvilghb.exe
                MD5

                c49e1d69537cb75b1dd292db7080bf9f

                SHA1

                de123e9838f73f5dfbc297c5e0cd7e4282389e17

                SHA256

                1d6a68a46e86ef2a6cbdbb17fd797db70e7ba539f763d69aa7e5d5613bb843c8

                SHA512

                82c7f2fe945043bcf0e6308c4e50f206a3a8a36be2a7701e34fbd4ce0787e6486c8c6d89ba1cf5741dc0972143b905e239f2c596329fc312a1f51a7f61bef474

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              • C:\Windows\SysWOW64\mhdswbdk\hgvilghb.exe
                MD5

                c49e1d69537cb75b1dd292db7080bf9f

                SHA1

                de123e9838f73f5dfbc297c5e0cd7e4282389e17

                SHA256

                1d6a68a46e86ef2a6cbdbb17fd797db70e7ba539f763d69aa7e5d5613bb843c8

                SHA512

                82c7f2fe945043bcf0e6308c4e50f206a3a8a36be2a7701e34fbd4ce0787e6486c8c6d89ba1cf5741dc0972143b905e239f2c596329fc312a1f51a7f61bef474

                Download Submit
              • memory/528-123-0x0000000000030000-0x000000000003D000-memory.dmp
                Filesize

                52KB

                Download
              • memory/528-124-0x0000000000400000-0x000000000044A000-memory.dmp
                Filesize

                296KB

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              • memory/1392-126-0x0000000000FD0000-0x00000000010C1000-memory.dmp
                Filesize

                964KB

                Download
              • memory/1392-130-0x0000000000FD0000-0x00000000010C1000-memory.dmp
                Filesize

                964KB

                Download
              • memory/2124-120-0x0000000001060000-0x0000000001075000-memory.dmp
                Filesize

                84KB

                Download
              • memory/3080-115-0x0000000000030000-0x000000000003D000-memory.dmp
                Filesize

                52KB

                Download
              • memory/3080-116-0x0000000000450000-0x000000000059A000-memory.dmp
                Filesize

                1.3MB

                Download
              • memory/3080-117-0x0000000000400000-0x000000000044A000-memory.dmp
                Filesize

                296KB

                Download