Analysis

  • max time kernel
    111s
  • max time network
    159s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19/10/2021, 15:33

General

  • Target
    0aa3cc98fae581989a1d69e57072983f.exe
  • Size 373KB
  • Sample211019-sy8f4ahaem
  • SHA256 e366497c19208fe45bd04dd3d83f4ec71108b2cefeb4fdaeb60e139743c8bb40
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • cryptbot

C2
  • veoqkb22.top

  • morpib02.top

Attributes
  • payload_url

    http://tyncel11.top/download.php?file=lv.exe

Extracted

Family
  • danabot

C2
  • 192.119.110.73:443

  • 192.236.147.159:443

  • 192.210.222.88:443

Attributes
  • embedded_hash

    F4711E27D559B4AEB1A081A1EB0AC465

  • type

    loader

rsa_pubkey.plain
rsa_privkey.plain

Extracted

Family
  • danabot

Version
  • 2052

Botnet
  • 4

C2
  • 192.119.110.73:443

  • 192.236.147.159:443

  • 192.210.222.88:443

Attributes
  • embedded_hash

    F4711E27D559B4AEB1A081A1EB0AC465

  • type

    main

rsa_privkey.plain
rsa_pubkey.plain

Signatures

  • CryptBot

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

  • Danabot

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

  • Danabot Loader Component 8 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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • 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.

  • Themida packer 16 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • 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 22 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0aa3cc98fae581989a1d69e57072983f.exe
    "C:\Users\Admin\AppData\Local\Temp\0aa3cc98fae581989a1d69e57072983f.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Users\Admin\AppData\Local\Temp\File.exe
      "C:\Users\Admin\AppData\Local\Temp\File.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:3856
      • C:\Users\Admin\AppData\Local\Temp\effort\foulervp.exe
        "C:\Users\Admin\AppData\Local\Temp\effort\foulervp.exe"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:916
        • C:\Users\Admin\AppData\Local\Temp\gkxqwmwqr.exe
          "C:\Users\Admin\AppData\Local\Temp\gkxqwmwqr.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1060
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\GKXQWM~1.DLL,s C:\Users\Admin\AppData\Local\Temp\GKXQWM~1.EXE
            5⤵
            • Blocklisted process makes network request
            • Loads dropped DLL
            • Drops file in Program Files directory
            • Suspicious use of WriteProcessMemory
            PID:2660
            • C:\Windows\SysWOW64\RUNDLL32.EXE
              C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\GKXQWM~1.DLL,YxVOOA==
              6⤵
              • Loads dropped DLL
              • Checks processor information in registry
              PID:3004
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\GKXQWM~1.DLL
                7⤵
                  PID:4748
                • C:\Windows\SysWOW64\RUNDLL32.EXE
                  C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\GKXQWM~1.DLL,m1VF
                  7⤵
                    PID:2820
                    • C:\Windows\system32\rundll32.exe
                      C:\Windows\system32\rundll32.exe C:\Windows\system32\shell32.dll,#61 19638
                      8⤵
                        PID:712
                        • C:\Windows\system32\ctfmon.exe
                          ctfmon.exe
                          9⤵
                            PID:4108
                      • 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\tmp92E1.tmp.ps1"
                        7⤵
                          PID:4720
                        • 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\tmpDBA4.tmp.ps1"
                          7⤵
                            PID:2484
                            • C:\Windows\SysWOW64\nslookup.exe
                              "C:\Windows\system32\nslookup.exe" -type=any localhost
                              8⤵
                                PID:5068
                            • C:\Windows\SysWOW64\schtasks.exe
                              schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
                              7⤵
                                PID:3800
                              • C:\Windows\SysWOW64\schtasks.exe
                                schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
                                7⤵
                                  PID:1344
                          • C:\Windows\SysWOW64\WScript.exe
                            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ddhpfsrpt.vbs"
                            4⤵
                              PID:2400
                            • C:\Windows\SysWOW64\WScript.exe
                              "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\xyemxcobxr.vbs"
                              4⤵
                              • Blocklisted process makes network request
                              • Modifies system certificate store
                              PID:4276
                          • C:\Users\Admin\AppData\Local\Temp\effort\giliak.exe
                            "C:\Users\Admin\AppData\Local\Temp\effort\giliak.exe"
                            3⤵
                            • Executes dropped EXE
                            • Checks BIOS information in registry
                            • Drops startup file
                            • Checks whether UAC is enabled
                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                            • Suspicious use of WriteProcessMemory
                            PID:376
                            • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
                              "C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
                              4⤵
                              • Executes dropped EXE
                              • Checks BIOS information in registry
                              • Checks whether UAC is enabled
                              • Suspicious use of NtSetInformationThreadHideFromDebugger
                              • Suspicious behavior: AddClipboardFormatListener
                              PID:1516
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\yJPZrBpCBfbKy & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\0aa3cc98fae581989a1d69e57072983f.exe"
                          2⤵
                          • Suspicious use of WriteProcessMemory
                          PID:1848
                          • C:\Windows\SysWOW64\timeout.exe
                            timeout 4
                            3⤵
                            • Delays execution with timeout.exe
                            PID:816

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            memory/376-147-0x00007FF716A60000-0x00007FF7173D2000-memory.dmp

                            memory/376-149-0x00007FF716A60000-0x00007FF7173D2000-memory.dmp

                            memory/376-151-0x00007FF716A60000-0x00007FF7173D2000-memory.dmp

                            memory/712-210-0x0000000000370000-0x0000000000510000-memory.dmp

                            memory/712-209-0x000001E3FE5F0000-0x000001E3FE5F2000-memory.dmp

                            memory/712-213-0x000001E3FE680000-0x000001E3FE832000-memory.dmp

                            memory/712-211-0x000001E3FE5F0000-0x000001E3FE5F2000-memory.dmp

                            memory/916-145-0x00000000001E0000-0x00000000008B2000-memory.dmp

                            memory/916-146-0x00000000001E0000-0x00000000008B2000-memory.dmp

                            memory/916-148-0x00000000001E0000-0x00000000008B2000-memory.dmp

                            memory/916-150-0x00000000001E0000-0x00000000008B2000-memory.dmp

                            memory/916-144-0x00000000772D0000-0x000000007745E000-memory.dmp

                            memory/1060-170-0x0000000000400000-0x0000000002FF2000-memory.dmp

                            memory/1060-161-0x0000000004D07000-0x0000000004DF9000-memory.dmp

                            memory/1060-169-0x0000000004E00000-0x0000000004F09000-memory.dmp

                            memory/1516-155-0x00007FF7FC580000-0x00007FF7FCEF2000-memory.dmp

                            memory/1516-156-0x00007FF7FC580000-0x00007FF7FCEF2000-memory.dmp

                            memory/1516-157-0x00007FF7FC580000-0x00007FF7FCEF2000-memory.dmp

                            memory/2484-501-0x00000000070E3000-0x00000000070E4000-memory.dmp

                            memory/2484-427-0x00000000070E0000-0x00000000070E1000-memory.dmp

                            memory/2484-429-0x00000000070E2000-0x00000000070E3000-memory.dmp

                            memory/2660-168-0x0000000000AC0000-0x0000000000C26000-memory.dmp

                            memory/2660-174-0x0000000001320000-0x0000000001321000-memory.dmp

                            memory/2660-173-0x00000000047A1000-0x0000000005785000-memory.dmp

                            memory/2820-206-0x0000000005BD0000-0x0000000005D10000-memory.dmp

                            memory/2820-193-0x0000000000570000-0x0000000000571000-memory.dmp

                            memory/2820-192-0x0000000004B21000-0x0000000005B05000-memory.dmp

                            memory/2820-204-0x0000000005D30000-0x0000000005D31000-memory.dmp

                            memory/2820-197-0x0000000005D20000-0x0000000005D21000-memory.dmp

                            memory/2820-205-0x0000000005BD0000-0x0000000005D10000-memory.dmp

                            memory/2820-198-0x0000000005BD0000-0x0000000005D10000-memory.dmp

                            memory/2820-199-0x0000000005BD0000-0x0000000005D10000-memory.dmp

                            memory/2820-202-0x0000000005BD0000-0x0000000005D10000-memory.dmp

                            memory/2820-203-0x0000000005BD0000-0x0000000005D10000-memory.dmp

                            memory/3004-178-0x0000000000AF0000-0x0000000000C56000-memory.dmp

                            memory/3004-181-0x0000000001320000-0x0000000001321000-memory.dmp

                            memory/3608-116-0x0000000002FB0000-0x000000000305E000-memory.dmp

                            memory/3608-117-0x0000000000400000-0x0000000002F25000-memory.dmp

                            memory/3608-115-0x0000000003059000-0x000000000307E000-memory.dmp

                            memory/4720-223-0x00000000044C2000-0x00000000044C3000-memory.dmp

                            memory/4720-218-0x0000000004340000-0x0000000004341000-memory.dmp

                            memory/4720-316-0x00000000044C3000-0x00000000044C4000-memory.dmp

                            memory/4720-219-0x0000000004340000-0x0000000004341000-memory.dmp

                            memory/4720-222-0x00000000044C0000-0x00000000044C1000-memory.dmp

                            memory/4748-225-0x0000000002A50000-0x0000000002A51000-memory.dmp

                            memory/4748-195-0x0000000007710000-0x0000000007711000-memory.dmp

                            memory/4748-237-0x0000000008C50000-0x0000000008C83000-memory.dmp

                            memory/4748-242-0x000000007F650000-0x000000007F651000-memory.dmp

                            memory/4748-214-0x00000000076E0000-0x00000000076E1000-memory.dmp

                            memory/4748-254-0x0000000006933000-0x0000000006934000-memory.dmp

                            memory/4748-200-0x0000000007780000-0x0000000007781000-memory.dmp

                            memory/4748-217-0x0000000007F80000-0x0000000007F81000-memory.dmp

                            memory/4748-196-0x0000000006EF0000-0x0000000006EF1000-memory.dmp

                            memory/4748-215-0x0000000007F30000-0x0000000007F31000-memory.dmp

                            memory/4748-194-0x0000000006E10000-0x0000000006E11000-memory.dmp

                            memory/4748-190-0x0000000006930000-0x0000000006931000-memory.dmp

                            memory/4748-191-0x0000000006932000-0x0000000006933000-memory.dmp

                            memory/4748-189-0x0000000006F70000-0x0000000006F71000-memory.dmp

                            memory/4748-188-0x00000000043A0000-0x00000000043A1000-memory.dmp

                            memory/4748-185-0x0000000002A50000-0x0000000002A51000-memory.dmp

                            memory/4748-183-0x0000000002A50000-0x0000000002A51000-memory.dmp