Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2022, 12:03

General

  • Target
    file.exe
  • Size 266KB
  • Sample221007-n71qdscdb9
  • SHA256 4cab39d0a9bb69fe37aacc7cffe96ea4788d64a93c1eb6ed3128c376683f224d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • danabot

C2
  • 192.236.233.188:443

  • 192.119.70.159:443

  • 23.106.124.171:443

  • 213.227.155.103:443

Attributes
  • embedded_hash

    56951C922035D696BFCE443750496462

  • type

    loader

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • winamd.org:443

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    234qw.exe

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    thg-K7JBH8

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    winfh

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Danabot

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

  • Detects Smokeloader packer 1 IoCs
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 8 IoCs
  • Program crash 16 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 39 IoCs

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

  • Checks processor information in registry 2 TTPs 42 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 59 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:536
  • C:\Users\Admin\AppData\Local\Temp\1D5B.exe
    C:\Users\Admin\AppData\Local\Temp\1D5B.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1780
    • C:\Windows\SysWOW64\agentactivationruntimestarter.exe
      C:\Windows\system32\agentactivationruntimestarter.exe
      2⤵
        PID:1972
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
        2⤵
        • Blocklisted process makes network request
        PID:924
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 596
        2⤵
        • Program crash
        PID:672
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 884
        2⤵
        • Program crash
        PID:4944
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 904
        2⤵
        • Program crash
        PID:3856
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 1012
        2⤵
        • Program crash
        PID:720
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
        2⤵
        • Blocklisted process makes network request
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:240
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 1032
        2⤵
        • Program crash
        PID:864
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k AarSvcGroup -p -s AarSvc
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:1920
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x150 0x338
      1⤵
        PID:3644
      • C:\Users\Admin\AppData\Local\Temp\BA19.exe
        C:\Users\Admin\AppData\Local\Temp\BA19.exe
        1⤵
        • Adds policy Run key to start application
        • Executes dropped EXE
        • Checks computer location settings
        • Adds Run key to start application
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1188
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 680
          2⤵
          • Program crash
          PID:1592
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 940
          2⤵
          • Program crash
          PID:1904
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1004
          2⤵
          • Program crash
          PID:4716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1128
          2⤵
          • Program crash
          PID:1836
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1008
          2⤵
          • Program crash
          PID:4056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1156
          2⤵
          • Program crash
          PID:4932
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1152
          2⤵
          • Program crash
          PID:4048
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
          2⤵
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:1368
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\234qw.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1732
            • C:\Users\Admin\AppData\Roaming\234qw.exe
              C:\Users\Admin\AppData\Roaming\234qw.exe
              4⤵
              • Adds policy Run key to start application
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:3244
              • \??\c:\program files (x86)\internet explorer\iexplore.exe
                "c:\program files (x86)\internet explorer\iexplore.exe"
                5⤵
                  PID:1568
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 276
                    6⤵
                    • Program crash
                    PID:2312
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 316
                    6⤵
                    • Program crash
                    PID:1376
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 568
                  5⤵
                  • Program crash
                  PID:4308
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1316
            2⤵
            • Program crash
            PID:4080
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1188 -ip 1188
          1⤵
            PID:4464
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1188 -ip 1188
            1⤵
              PID:5052
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1188 -ip 1188
              1⤵
                PID:5040
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1188 -ip 1188
                1⤵
                  PID:4172
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1188 -ip 1188
                  1⤵
                    PID:1028
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1188 -ip 1188
                    1⤵
                      PID:1936
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1188 -ip 1188
                      1⤵
                        PID:4164
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1188 -ip 1188
                        1⤵
                          PID:4980
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3244 -ip 3244
                          1⤵
                            PID:1104
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1568 -ip 1568
                            1⤵
                              PID:1532
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1568 -ip 1568
                              1⤵
                                PID:2504
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1780 -ip 1780
                                1⤵
                                  PID:4972
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1780 -ip 1780
                                  1⤵
                                    PID:536
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1780 -ip 1780
                                    1⤵
                                      PID:1924
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1780 -ip 1780
                                      1⤵
                                        PID:4408
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1780 -ip 1780
                                        1⤵
                                          PID:980

                                        Network

                                              MITRE ATT&CK Enterprise v6

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              Downloads

                                              1D5B.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\1D5B.exe
                                              • Size 1.3MB
                                              • SHA256 b6044f9ec3560bbbfa3ea4d2300e6a03df446b33805d06e8c4d73162e5d9a02e
                                              • MD5 SHA1 SHA512 SSDEEP

                                              1D5B.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\1D5B.exe
                                              • Size 1.3MB
                                              • SHA256 b6044f9ec3560bbbfa3ea4d2300e6a03df446b33805d06e8c4d73162e5d9a02e
                                              • MD5 SHA1 SHA512 SSDEEP

                                              BA19.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\BA19.exe
                                              • Size 481KB
                                              • SHA256 4f19b0ebf558e5289b20c2f65c1d714394ce5007ff6465ed090f46b3a5a7cff5
                                              • MD5 SHA1 SHA512 SSDEEP

                                              BA19.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\BA19.exe
                                              • Size 481KB
                                              • SHA256 4f19b0ebf558e5289b20c2f65c1d714394ce5007ff6465ed090f46b3a5a7cff5
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Sepawuaopqtypsq.tmp

                                              • Path C:\Users\Admin\AppData\Local\Temp\Sepawuaopqtypsq.tmp
                                              • Size 3.3MB
                                              • SHA256 1e7242ac7c025b87636e59c07e3601f1bbf5894ce0b23709405b6fefbca4dabe
                                              • MD5 SHA1 SHA512 SSDEEP

                                              install.vbs

                                              • Path C:\Users\Admin\AppData\Local\Temp\install.vbs
                                              • Size 522B
                                              • SHA256 de10b98decc97701cdd4f80b740efec1ed9aa84e403dd0eb84781e4588d1e868
                                              • MD5 SHA1 SHA512

                                              234qw.exe

                                              • Path C:\Users\Admin\AppData\Roaming\234qw.exe
                                              • Size 481KB
                                              • SHA256 4f19b0ebf558e5289b20c2f65c1d714394ce5007ff6465ed090f46b3a5a7cff5
                                              • MD5 SHA1 SHA512 SSDEEP

                                              234qw.exe

                                              • Path C:\Users\Admin\AppData\Roaming\234qw.exe
                                              • Size 481KB
                                              • SHA256 4f19b0ebf558e5289b20c2f65c1d714394ce5007ff6465ed090f46b3a5a7cff5
                                              • MD5 SHA1 SHA512 SSDEEP

                                              memory/240-191-0x0000000002980000-0x0000000003443000-memory.dmp

                                              memory/240-190-0x0000000000430000-0x0000000000DD4000-memory.dmp

                                              memory/240-187-0x0000000003640000-0x0000000003780000-memory.dmp

                                              memory/240-188-0x0000000003640000-0x0000000003780000-memory.dmp

                                              memory/240-186-0x0000000002980000-0x0000000003443000-memory.dmp

                                              memory/536-135-0x0000000000400000-0x0000000000448000-memory.dmp

                                              memory/536-134-0x0000000000400000-0x0000000000448000-memory.dmp

                                              memory/536-133-0x0000000000450000-0x0000000000459000-memory.dmp

                                              memory/536-132-0x000000000047D000-0x000000000048E000-memory.dmp

                                              memory/924-171-0x0000000000580000-0x0000000000583000-memory.dmp

                                              memory/924-170-0x0000000000570000-0x0000000000573000-memory.dmp

                                              memory/924-168-0x0000000000550000-0x0000000000553000-memory.dmp

                                              memory/924-167-0x0000000000540000-0x0000000000543000-memory.dmp

                                              memory/924-166-0x0000000000530000-0x0000000000533000-memory.dmp

                                              memory/924-165-0x0000000000520000-0x0000000000523000-memory.dmp

                                              memory/924-169-0x0000000000560000-0x0000000000563000-memory.dmp

                                              memory/924-172-0x0000000000580000-0x0000000000583000-memory.dmp

                                              memory/1188-147-0x000000000050D000-0x0000000000553000-memory.dmp

                                              memory/1188-148-0x0000000002120000-0x0000000002197000-memory.dmp

                                              memory/1188-149-0x0000000000400000-0x000000000047F000-memory.dmp

                                              memory/1188-152-0x000000000050D000-0x0000000000553000-memory.dmp

                                              memory/1568-160-0x0000000000900000-0x000000000097F000-memory.dmp

                                              memory/1568-161-0x0000000000900000-0x000000000097F000-memory.dmp

                                              memory/1780-162-0x0000000000400000-0x00000000006CE000-memory.dmp

                                              memory/1780-182-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-193-0x0000000003120000-0x0000000003BE3000-memory.dmp

                                              memory/1780-192-0x0000000000400000-0x00000000006CE000-memory.dmp

                                              memory/1780-174-0x0000000003120000-0x0000000003BE3000-memory.dmp

                                              memory/1780-175-0x0000000003120000-0x0000000003BE3000-memory.dmp

                                              memory/1780-176-0x0000000003120000-0x0000000003BE3000-memory.dmp

                                              memory/1780-177-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-178-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-179-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-181-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-180-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-163-0x0000000000400000-0x00000000006CE000-memory.dmp

                                              memory/1780-183-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-184-0x0000000003CF0000-0x0000000003E30000-memory.dmp

                                              memory/1780-140-0x00000000024C3000-0x00000000025E1000-memory.dmp

                                              memory/1780-143-0x0000000000400000-0x00000000006CE000-memory.dmp

                                              memory/1780-142-0x0000000000400000-0x00000000006CE000-memory.dmp

                                              memory/1780-141-0x00000000025F0000-0x00000000028B2000-memory.dmp

                                              memory/1780-189-0x0000000000400000-0x00000000006CE000-memory.dmp

                                              memory/3244-159-0x0000000000400000-0x000000000047F000-memory.dmp

                                              memory/3244-158-0x000000000070D000-0x0000000000753000-memory.dmp