Analysis

  • max time kernel
    151s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/03/2023, 11:20

General

  • Target

    b76b84ca83697613fb8d2a8bc116961c8aadab57ca385f8a3032d9399aeff01f.exe

  • Size

    164KB

  • MD5

    f5e4f6e86f8c5cbd492e36ae2aa9f72d

  • SHA1

    3d5be475174f64cb83886ea3109767686fe0bd0a

  • SHA256

    b76b84ca83697613fb8d2a8bc116961c8aadab57ca385f8a3032d9399aeff01f

  • SHA512

    51bfc69acfeeb6222c281a0380a65fc83fab342adaf876a81b90f1b869fe2878d20c47d3117d122d9d2732e3edbd8d496c8799d99905db1ce8060b8a20ccf06b

  • SSDEEP

    3072:4IiV3N1ncO8WEmQSkDMeAUhL1zkeM5sOeVbfZgH:4FV9xn8WEmjkIebhJQeROtH

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://ahead4scores.ac.ug/index.php

https://ahead4scores.ac.ug/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b76b84ca83697613fb8d2a8bc116961c8aadab57ca385f8a3032d9399aeff01f.exe
    "C:\Users\Admin\AppData\Local\Temp\b76b84ca83697613fb8d2a8bc116961c8aadab57ca385f8a3032d9399aeff01f.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4888
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
    • Accesses Microsoft Outlook profiles
    • outlook_office_path
    • outlook_win_path
    PID:3328
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe
    1⤵
      PID:4688
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:4872
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:2840
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:996
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:852
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -u -p 852 -s 712
                2⤵
                • Program crash
                PID:1416
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:2220
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -pss -s 456 -p 852 -ip 852
                1⤵
                  PID:1192
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1124
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:3848
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:1328
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:4572
                        • C:\Windows\SysWOW64\explorer.exe
                          C:\Windows\SysWOW64\explorer.exe
                          1⤵
                            PID:2208
                          • C:\Windows\SysWOW64\explorer.exe
                            C:\Windows\SysWOW64\explorer.exe
                            1⤵
                              PID:1084
                            • C:\Windows\explorer.exe
                              C:\Windows\explorer.exe
                              1⤵
                                PID:1944
                              • C:\Windows\SysWOW64\explorer.exe
                                C:\Windows\SysWOW64\explorer.exe
                                1⤵
                                  PID:4740

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • memory/852-180-0x0000000000960000-0x000000000096F000-memory.dmp

                                  Filesize

                                  60KB

                                • memory/852-179-0x0000000000590000-0x000000000059B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/852-178-0x0000000000960000-0x000000000096F000-memory.dmp

                                  Filesize

                                  60KB

                                • memory/996-205-0x0000000000CE0000-0x0000000000CE9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/996-177-0x0000000000590000-0x000000000059B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/996-176-0x0000000000CE0000-0x0000000000CE9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/996-175-0x0000000000590000-0x000000000059B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/1084-197-0x0000000001240000-0x000000000124B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/1084-200-0x0000000000730000-0x0000000000739000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1084-201-0x0000000001240000-0x000000000124B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/1084-209-0x0000000000730000-0x0000000000739000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1124-186-0x0000000000CD0000-0x0000000000CDC000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/1124-185-0x0000000000C10000-0x0000000000C19000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1124-184-0x0000000000CD0000-0x0000000000CDC000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/1328-190-0x00000000009C0000-0x00000000009C9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1328-189-0x00000000009C0000-0x00000000009C9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1328-207-0x00000000007B0000-0x00000000007B9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1944-199-0x00000000012D0000-0x00000000012DD000-memory.dmp

                                  Filesize

                                  52KB

                                • memory/1944-202-0x00000000012D0000-0x00000000012DD000-memory.dmp

                                  Filesize

                                  52KB

                                • memory/2208-196-0x0000000000730000-0x0000000000739000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2208-194-0x0000000000730000-0x0000000000739000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2208-208-0x00000000008C0000-0x00000000008E7000-memory.dmp

                                  Filesize

                                  156KB

                                • memory/2208-195-0x00000000008C0000-0x00000000008E7000-memory.dmp

                                  Filesize

                                  156KB

                                • memory/2220-182-0x0000000000960000-0x000000000096F000-memory.dmp

                                  Filesize

                                  60KB

                                • memory/2220-183-0x0000000000C10000-0x0000000000C19000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2220-181-0x0000000000C10000-0x0000000000C19000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2840-174-0x0000000000CC0000-0x0000000000CCB000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/2840-173-0x0000000000CC0000-0x0000000000CCB000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/3132-135-0x0000000001100000-0x0000000001116000-memory.dmp

                                  Filesize

                                  88KB

                                • memory/3328-150-0x0000000000C00000-0x0000000000C80000-memory.dmp

                                  Filesize

                                  512KB

                                • memory/3328-169-0x0000000000930000-0x000000000099B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/3328-146-0x0000000000930000-0x000000000099B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/3328-151-0x0000000000930000-0x000000000099B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/3848-206-0x0000000000CD0000-0x0000000000CDC000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/3848-188-0x00000000007B0000-0x00000000007B9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/3848-187-0x00000000007B0000-0x00000000007B9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/4572-191-0x00000000008C0000-0x00000000008E7000-memory.dmp

                                  Filesize

                                  156KB

                                • memory/4572-192-0x00000000009C0000-0x00000000009C9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/4572-193-0x00000000008C0000-0x00000000008E7000-memory.dmp

                                  Filesize

                                  156KB

                                • memory/4688-162-0x0000000000550000-0x000000000055C000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/4688-155-0x0000000000550000-0x000000000055C000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/4740-203-0x0000000000A70000-0x0000000000A7B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/4740-204-0x0000000000A70000-0x0000000000A7B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/4740-210-0x00000000012D0000-0x00000000012DD000-memory.dmp

                                  Filesize

                                  52KB

                                • memory/4872-171-0x0000000000930000-0x000000000099B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/4872-198-0x0000000000930000-0x000000000099B000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/4872-170-0x0000000000CE0000-0x0000000000CE9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/4872-172-0x0000000000CE0000-0x0000000000CE9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/4888-136-0x0000000000400000-0x0000000000570000-memory.dmp

                                  Filesize

                                  1.4MB

                                • memory/4888-134-0x0000000000700000-0x0000000000709000-memory.dmp

                                  Filesize

                                  36KB