Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08/08/2021, 19:52

General

  • Target
    5c9bc69219f434c0d872aa764bd8e624.exe
  • Size 603KB
  • Sample210808-gnv4ltmrfs
  • SHA256 3c3ec4c1e29ddd7df20882f14db717567717772eba3c25063564c7b8a665ac06
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • cryptbot

C2
  • haibam72.top

  • morelm07.top

Attributes
  • payload_url

    http://zelyoc10.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot Payload 2 IoCs
  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Danabot Loader Component 5 IoCs
  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

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

  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 1 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c9bc69219f434c0d872aa764bd8e624.exe
    "C:\Users\Admin\AppData\Local\Temp\5c9bc69219f434c0d872aa764bd8e624.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:672
    • C:\Users\Admin\AppData\Local\Temp\Filett.exe
      "C:\Users\Admin\AppData\Local\Temp\Filett.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Users\Admin\AppData\Local\Temp\hlfogd\vp.exe
        "C:\Users\Admin\AppData\Local\Temp\hlfogd\vp.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2256
        • C:\Windows\SysWOW64\dllhost.exe
          dllhost.exe
          4⤵
            PID:4060
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c cmd < Che.wms
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3928
            • C:\Windows\SysWOW64\cmd.exe
              cmd
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:4076
              • C:\Windows\SysWOW64\findstr.exe
                findstr /V /R "^MrhMuHMKqmHPuZsqQvDjsNTmYhBeqUMWGknGFqvCcpoQsTmJjkPiIyxYpNNSuKJyNLpUAKxPZwQiFroyORPOyEgARAbShDvKmerGJEpCRqoGfjzuFIrgVVqovJeqhCBcFu$" Inclina.wms
                6⤵
                  PID:2324
                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Speranza.exe.com
                  Speranza.exe.com v
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:2468
                  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Speranza.exe.com
                    C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Speranza.exe.com v
                    7⤵
                    • Executes dropped EXE
                    • Checks processor information in registry
                    • Modifies registry class
                    • Suspicious use of WriteProcessMemory
                    PID:3956
                    • C:\Users\Admin\AppData\Local\Temp\qdkxbuvuuvl.exe
                      "C:\Users\Admin\AppData\Local\Temp\qdkxbuvuuvl.exe"
                      8⤵
                      • Executes dropped EXE
                      • Suspicious use of WriteProcessMemory
                      PID:344
                      • C:\Windows\SysWOW64\rundll32.exe
                        C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\QDKXBU~1.TMP,S C:\Users\Admin\AppData\Local\Temp\QDKXBU~1.EXE
                        9⤵
                        • Blocklisted process makes network request
                        • Loads dropped DLL
                        • Drops file in Program Files directory
                        • Suspicious use of WriteProcessMemory
                        PID:2168
                        • C:\Windows\SysWOW64\RUNDLL32.EXE
                          C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\QDKXBU~1.TMP,aUkgMTVGaHg=
                          10⤵
                          • Loads dropped DLL
                          PID:1092
                    • C:\Windows\SysWOW64\WScript.exe
                      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\addlmynb.vbs"
                      8⤵
                        PID:2428
                      • C:\Windows\SysWOW64\WScript.exe
                        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\pavffas.vbs"
                        8⤵
                        • Blocklisted process makes network request
                        • Modifies system certificate store
                        PID:3292
                  • C:\Windows\SysWOW64\PING.EXE
                    ping localhost -n 30
                    6⤵
                    • Runs ping.exe
                    PID:4008
            • C:\Users\Admin\AppData\Local\Temp\hlfogd\four.exe
              "C:\Users\Admin\AppData\Local\Temp\hlfogd\four.exe"
              3⤵
              • Executes dropped EXE
              • Drops startup file
              • Suspicious use of WriteProcessMemory
              PID:3864
              • C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe
                "C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious behavior: AddClipboardFormatListener
                PID:3816
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\kKgbjsGPr & timeout 2 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5c9bc69219f434c0d872aa764bd8e624.exe"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4016
            • C:\Windows\SysWOW64\timeout.exe
              timeout 2
              3⤵
              • Delays execution with timeout.exe
              PID:2340

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              memory/344-166-0x0000000004C10000-0x0000000004D10000-memory.dmp

              memory/344-167-0x0000000000400000-0x0000000002D50000-memory.dmp

              memory/672-114-0x0000000004A60000-0x0000000004B00000-memory.dmp

              memory/672-115-0x0000000000400000-0x0000000002CCC000-memory.dmp

              memory/1092-178-0x0000000005C10000-0x0000000005C11000-memory.dmp

              memory/1092-179-0x0000000004760000-0x00000000059F6000-memory.dmp

              memory/1092-175-0x0000000004090000-0x00000000041F0000-memory.dmp

              memory/2168-177-0x0000000005000000-0x0000000006296000-memory.dmp

              memory/3816-155-0x0000000000400000-0x0000000002C7A000-memory.dmp

              memory/3864-150-0x0000000002C90000-0x0000000002CB6000-memory.dmp

              memory/3864-151-0x0000000000400000-0x0000000002C7A000-memory.dmp

              memory/3956-157-0x0000000000860000-0x0000000000861000-memory.dmp