Analysis

  • max time kernel
    144s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    28/05/2021, 19:06

General

  • Target
    a824c2611e6bb72739416b280250e64a.exe
  • Size 726KB
  • Sample210528-pg97hqxfc2
  • SHA256 17cb52ffccb7fb8d9480f921392f29d520ec9a7c963a7ff8791328ba7638d22f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • cryptbot

C2
  • geofrz52.top

  • morvmz05.top

Attributes
  • payload_url

    http://rogkpf07.top/download.php?file=lv.exe

Extracted

Family
  • danabot

Version
  • 1827

Botnet
  • 3

C2
  • 184.95.51.183:443

  • 184.95.51.175:443

  • 192.210.198.12:443

  • 184.95.51.180:443

Attributes
  • embedded_hash

    AEF96B4D339B580ABB737F203C2D0F52

rsa_pubkey.plain
rsa_pubkey.plain

Signatures

  • CryptBot

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

  • CryptBot Payload 3 IoCs
  • Danabot

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

  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 5 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
  • 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 3 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 6 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 behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a824c2611e6bb72739416b280250e64a.exe
    "C:\Users\Admin\AppData\Local\Temp\a824c2611e6bb72739416b280250e64a.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\nZHrypO.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2664
      • C:\Users\Admin\AppData\Local\Temp\nZHrypO.exe
        "C:\Users\Admin\AppData\Local\Temp\nZHrypO.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:3296
        • C:\Users\Admin\AppData\Local\Temp\New Feature\vpn.exe
          "C:\Users\Admin\AppData\Local\Temp\New Feature\vpn.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1524
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\system32\cmd < Fai.potm
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2656
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1492
              • C:\Windows\SysWOW64\findstr.exe
                findstr /V /R "^lbfXreWdTXRitRhlMXtPdpbYhPgMlueYgPLnUSCvWbGrGCTqdIdkGhRwZsKhOluMUSSfuPdUxISSCxsKWhcBQRaqXK$" Dei.potm
                7⤵
                  PID:3864
                • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Pulsare.exe.com
                  Pulsare.exe.com N
                  7⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:4012
                  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Pulsare.exe.com
                    C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Pulsare.exe.com N
                    8⤵
                    • Executes dropped EXE
                    • Checks processor information in registry
                    • Modifies registry class
                    • Suspicious use of WriteProcessMemory
                    PID:3148
                    • C:\Users\Admin\AppData\Local\Temp\kswunpyv.exe
                      "C:\Users\Admin\AppData\Local\Temp\kswunpyv.exe"
                      9⤵
                      • Executes dropped EXE
                      • Suspicious use of WriteProcessMemory
                      PID:3532
                      • C:\Windows\SysWOW64\rundll32.exe
                        C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\KSWUNP~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\kswunpyv.exe
                        10⤵
                        • Loads dropped DLL
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        PID:1276
                        • C:\Windows\SysWOW64\RUNDLL32.EXE
                          C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\KSWUNP~1.DLL,OhIoLDbZBQ==
                          11⤵
                          • Blocklisted process makes network request
                          • Loads dropped DLL
                          • Checks processor information in registry
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          • Suspicious use of FindShellTrayWindow
                          • Suspicious use of WriteProcessMemory
                          PID:2296
                          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmp880D.tmp.ps1"
                            12⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:544
                          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmp9A6E.tmp.ps1"
                            12⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:788
                            • C:\Windows\SysWOW64\nslookup.exe
                              "C:\Windows\system32\nslookup.exe" -type=any localhost
                              13⤵
                                PID:3392
                            • C:\Windows\SysWOW64\schtasks.exe
                              schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
                              12⤵
                                PID:2500
                              • C:\Windows\SysWOW64\schtasks.exe
                                schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
                                12⤵
                                  PID:3956
                          • C:\Windows\SysWOW64\WScript.exe
                            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\sicgiqere.vbs"
                            9⤵
                              PID:1360
                            • C:\Windows\SysWOW64\WScript.exe
                              "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\eejfebp.vbs"
                              9⤵
                              • Blocklisted process makes network request
                              • Modifies system certificate store
                              PID:3776
                        • C:\Windows\SysWOW64\PING.EXE
                          ping 127.0.0.1 -n 30
                          7⤵
                          • Runs ping.exe
                          PID:3552
                  • C:\Users\Admin\AppData\Local\Temp\New Feature\4.exe
                    "C:\Users\Admin\AppData\Local\Temp\New Feature\4.exe"
                    4⤵
                    • Executes dropped EXE
                    • Drops startup file
                    • Suspicious use of WriteProcessMemory
                    PID:1340
                    • C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe
                      "C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"
                      5⤵
                      • Executes dropped EXE
                      • Suspicious behavior: AddClipboardFormatListener
                      PID:1764
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\hhimdWrh & timeout 3 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a824c2611e6bb72739416b280250e64a.exe"
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:2732
                • C:\Windows\SysWOW64\timeout.exe
                  timeout 3
                  3⤵
                  • Delays execution with timeout.exe
                  PID:1868

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/544-188-0x0000000006CC0000-0x0000000006CC1000-memory.dmp

                  memory/544-185-0x0000000006DB0000-0x0000000006DB1000-memory.dmp

                  memory/544-206-0x0000000006773000-0x0000000006774000-memory.dmp

                  memory/544-184-0x00000000065D0000-0x00000000065D1000-memory.dmp

                  memory/544-187-0x0000000006772000-0x0000000006773000-memory.dmp

                  memory/544-192-0x0000000007530000-0x0000000007531000-memory.dmp

                  memory/544-193-0x0000000007F70000-0x0000000007F71000-memory.dmp

                  memory/544-194-0x0000000007D70000-0x0000000007D71000-memory.dmp

                  memory/544-186-0x0000000006770000-0x0000000006771000-memory.dmp

                  memory/544-203-0x0000000006910000-0x0000000006911000-memory.dmp

                  memory/544-202-0x0000000008AB0000-0x0000000008AB1000-memory.dmp

                  memory/544-201-0x0000000009530000-0x0000000009531000-memory.dmp

                  memory/544-191-0x00000000076A0000-0x00000000076A1000-memory.dmp

                  memory/544-189-0x00000000075C0000-0x00000000075C1000-memory.dmp

                  memory/544-196-0x00000000068D0000-0x00000000068D1000-memory.dmp

                  memory/544-190-0x0000000007630000-0x0000000007631000-memory.dmp

                  memory/788-222-0x0000000004D50000-0x0000000004D51000-memory.dmp

                  memory/788-219-0x0000000008740000-0x0000000008741000-memory.dmp

                  memory/788-216-0x0000000008090000-0x0000000008091000-memory.dmp

                  memory/788-235-0x0000000004D53000-0x0000000004D54000-memory.dmp

                  memory/788-223-0x0000000004D52000-0x0000000004D53000-memory.dmp

                  memory/1276-176-0x0000000002E10000-0x0000000002E11000-memory.dmp

                  memory/1276-175-0x0000000005611000-0x0000000005C70000-memory.dmp

                  memory/1276-170-0x00000000051C0000-0x00000000051C1000-memory.dmp

                  memory/1276-169-0x00000000048F0000-0x0000000004EB5000-memory.dmp

                  memory/1340-152-0x0000000000400000-0x0000000000457000-memory.dmp

                  memory/1340-151-0x00000000005B0000-0x00000000005D6000-memory.dmp

                  memory/1764-154-0x0000000000400000-0x0000000000457000-memory.dmp

                  memory/1764-153-0x0000000000460000-0x00000000005AA000-memory.dmp

                  memory/2296-221-0x00000000026E0000-0x00000000026E1000-memory.dmp

                  memory/2296-178-0x0000000004D01000-0x0000000005360000-memory.dmp

                  memory/2296-177-0x0000000004850000-0x0000000004851000-memory.dmp

                  memory/2296-174-0x0000000004100000-0x00000000046C5000-memory.dmp

                  memory/3016-114-0x00000000022A0000-0x0000000002381000-memory.dmp

                  memory/3016-115-0x0000000000400000-0x00000000004E5000-memory.dmp

                  memory/3148-155-0x00000000014F0000-0x00000000014F1000-memory.dmp

                  memory/3532-162-0x0000000002F50000-0x0000000003657000-memory.dmp

                  memory/3532-164-0x0000000000D90000-0x0000000000D91000-memory.dmp

                  memory/3532-163-0x0000000000400000-0x0000000000B14000-memory.dmp