Analysis

  • max time kernel
    147s
  • max time network
    157s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08/06/2021, 07:04

General

  • Target
    b459692e802efcbc858497ef0d54eb5f30d2ae75e703d.exe
  • Size 716KB
  • Sample210608-br3slgm7cx
  • SHA256 b459692e802efcbc858497ef0d54eb5f30d2ae75e703d4cb85ce29d895adc911
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • cryptbot

C2
  • olmrso12.top

  • morleg01.top

Attributes
  • payload_url

    http://vamgha01.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 2 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 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b459692e802efcbc858497ef0d54eb5f30d2ae75e703d.exe
    "C:\Users\Admin\AppData\Local\Temp\b459692e802efcbc858497ef0d54eb5f30d2ae75e703d.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:744
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\kMDMoIEL.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Users\Admin\AppData\Local\Temp\kMDMoIEL.exe
        "C:\Users\Admin\AppData\Local\Temp\kMDMoIEL.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:4008
        • 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 FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:1496
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c cmd < Impaziente.pptx
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4020
            • C:\Windows\SysWOW64\cmd.exe
              cmd
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:2608
              • C:\Windows\SysWOW64\findstr.exe
                findstr /V /R "^rvlkqKVoeVAMHCWAIZnknRpRgyZLjKwPmJyMWtjeFgBKaZRxDfZktUPjhaWVKlVaUKjXbpDENvFlfnmfgEiWKQLFTSmDidaczpQ$" Convulso.pptx
                7⤵
                  PID:2740
                • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Esplorarne.exe.com
                  Esplorarne.exe.com F
                  7⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:2140
                  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Esplorarne.exe.com
                    C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Esplorarne.exe.com F
                    8⤵
                    • Executes dropped EXE
                    • Checks processor information in registry
                    • Modifies registry class
                    • Suspicious use of WriteProcessMemory
                    PID:2584
                    • C:\Users\Admin\AppData\Local\Temp\omgufhsqdo.exe
                      "C:\Users\Admin\AppData\Local\Temp\omgufhsqdo.exe"
                      9⤵
                      • Executes dropped EXE
                      • Suspicious use of WriteProcessMemory
                      PID:1280
                      • C:\Windows\SysWOW64\rundll32.exe
                        C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\OMGUFH~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\OMGUFH~1.EXE
                        10⤵
                        • Loads dropped DLL
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        PID:2016
                        • C:\Windows\SysWOW64\RUNDLL32.EXE
                          C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\OMGUFH~1.DLL,ik09LDbrAFT3
                          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:2740
                          • 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\tmp3B5.tmp.ps1"
                            12⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:2268
                          • 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\tmp314F.tmp.ps1"
                            12⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:1288
                            • C:\Windows\SysWOW64\nslookup.exe
                              "C:\Windows\system32\nslookup.exe" -type=any localhost
                              13⤵
                                PID:2140
                            • C:\Windows\SysWOW64\schtasks.exe
                              schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
                              12⤵
                                PID:932
                              • C:\Windows\SysWOW64\schtasks.exe
                                schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
                                12⤵
                                  PID:2712
                          • C:\Windows\SysWOW64\WScript.exe
                            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\alyyanjfgja.vbs"
                            9⤵
                              PID:3872
                            • C:\Windows\SysWOW64\WScript.exe
                              "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\jgexckkxatne.vbs"
                              9⤵
                              • Blocklisted process makes network request
                              • Modifies system certificate store
                              PID:3604
                        • C:\Windows\SysWOW64\PING.EXE
                          ping 127.0.0.1 -n 30
                          7⤵
                          • Runs ping.exe
                          PID:3816
                  • 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:3860
                    • 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:1204
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\MQZOQsaSL & timeout 3 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b459692e802efcbc858497ef0d54eb5f30d2ae75e703d.exe"
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:3060
                • C:\Windows\SysWOW64\timeout.exe
                  timeout 3
                  3⤵
                  • Delays execution with timeout.exe
                  PID:3436

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/744-114-0x0000000002180000-0x0000000002261000-memory.dmp

                  memory/744-115-0x0000000000400000-0x00000000004E5000-memory.dmp

                  memory/1204-154-0x0000000000400000-0x0000000000457000-memory.dmp

                  memory/1280-163-0x0000000000400000-0x0000000000B14000-memory.dmp

                  memory/1280-164-0x00000000025F0000-0x00000000025F1000-memory.dmp

                  memory/1280-162-0x0000000002D60000-0x0000000003467000-memory.dmp

                  memory/1288-218-0x0000000006C90000-0x0000000006C91000-memory.dmp

                  memory/1288-234-0x0000000006C93000-0x0000000006C94000-memory.dmp

                  memory/1288-217-0x0000000007D90000-0x0000000007D91000-memory.dmp

                  memory/1288-222-0x0000000008220000-0x0000000008221000-memory.dmp

                  memory/1288-219-0x0000000006C92000-0x0000000006C93000-memory.dmp

                  memory/2016-169-0x00000000047F0000-0x0000000004DB5000-memory.dmp

                  memory/2016-170-0x0000000005430000-0x0000000005431000-memory.dmp

                  memory/2016-175-0x0000000004DC1000-0x0000000005420000-memory.dmp

                  memory/2016-176-0x0000000000F00000-0x0000000000F01000-memory.dmp

                  memory/2268-206-0x0000000006DE3000-0x0000000006DE4000-memory.dmp

                  memory/2268-201-0x0000000009B70000-0x0000000009B71000-memory.dmp

                  memory/2268-203-0x0000000008550000-0x0000000008551000-memory.dmp

                  memory/2268-184-0x0000000004890000-0x0000000004891000-memory.dmp

                  memory/2268-185-0x0000000007420000-0x0000000007421000-memory.dmp

                  memory/2268-187-0x0000000006DE2000-0x0000000006DE3000-memory.dmp

                  memory/2268-186-0x0000000006DE0000-0x0000000006DE1000-memory.dmp

                  memory/2268-188-0x0000000007300000-0x0000000007301000-memory.dmp

                  memory/2268-189-0x0000000007BC0000-0x0000000007BC1000-memory.dmp

                  memory/2268-190-0x00000000073A0000-0x00000000073A1000-memory.dmp

                  memory/2268-191-0x0000000007C30000-0x0000000007C31000-memory.dmp

                  memory/2268-192-0x0000000007FA0000-0x0000000007FA1000-memory.dmp

                  memory/2268-193-0x00000000080C0000-0x00000000080C1000-memory.dmp

                  memory/2268-194-0x0000000008410000-0x0000000008411000-memory.dmp

                  memory/2268-202-0x0000000009100000-0x0000000009101000-memory.dmp

                  memory/2268-196-0x0000000008490000-0x0000000008491000-memory.dmp

                  memory/2584-156-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

                  memory/2740-178-0x0000000005101000-0x0000000005760000-memory.dmp

                  memory/2740-216-0x0000000000800000-0x000000000094A000-memory.dmp

                  memory/2740-177-0x00000000058B0000-0x00000000058B1000-memory.dmp

                  memory/3860-149-0x0000000000400000-0x0000000000457000-memory.dmp

                  memory/3860-148-0x00000000005D0000-0x00000000005F6000-memory.dmp