Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 14:41

General

  • Target
    813e70ee7268b765c53d19f80a37c6b6.exe
  • Size 276KB
  • Sample221010-r2e4aacbg2
  • SHA256 f0a1ea06a9322753edd46ee1448a889c6e8fa9304a8feb2d0bddc7cac78bc0d2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 9 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\813e70ee7268b765c53d19f80a37c6b6.exe
    "C:\Users\Admin\AppData\Local\Temp\813e70ee7268b765c53d19f80a37c6b6.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2180
  • C:\Users\Admin\AppData\Local\Temp\F5DE.exe
    C:\Users\Admin\AppData\Local\Temp\F5DE.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4632 -s 1740
      2⤵
      • Program crash
      PID:2948
  • C:\Users\Admin\AppData\Local\Temp\16F4.exe
    C:\Users\Admin\AppData\Local\Temp\16F4.exe
    1⤵
    • Executes dropped EXE
    PID:3136
  • C:\Users\Admin\AppData\Local\Temp\1C63.exe
    C:\Users\Admin\AppData\Local\Temp\1C63.exe
    1⤵
    • Executes dropped EXE
    PID:2836
  • C:\Users\Admin\AppData\Local\Temp\20D9.exe
    C:\Users\Admin\AppData\Local\Temp\20D9.exe
    1⤵
    • Executes dropped EXE
    PID:3220
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4632 -ip 4632
    1⤵
      PID:3700
    • C:\Users\Admin\AppData\Local\Temp\328D.exe
      C:\Users\Admin\AppData\Local\Temp\328D.exe
      1⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:332
      • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
        "C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe"
        2⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:4088
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN wfyoot.exe /TR "C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe" /F
          3⤵
          • Creates scheduled task(s)
          PID:4996
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 332 -s 1132
        2⤵
        • Program crash
        PID:1092
    • C:\Users\Admin\AppData\Local\Temp\387A.exe
      C:\Users\Admin\AppData\Local\Temp\387A.exe
      1⤵
      • Executes dropped EXE
      PID:3500
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:2716
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 332 -ip 332
        1⤵
          PID:4308
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:4460
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:3168
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1952
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:4176
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:2012
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1524
                    • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                      C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                      1⤵
                      • Executes dropped EXE
                      PID:1432
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 316
                        2⤵
                        • Program crash
                        PID:3472
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:736
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:4536
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1432 -ip 1432
                          1⤵
                            PID:1416
                          • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                            C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                            1⤵
                            • Executes dropped EXE
                            PID:4944
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 316
                              2⤵
                              • Program crash
                              PID:1376
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4944 -ip 4944
                            1⤵
                              PID:380

                            Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

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                                  Downloads

                                  wfyoot.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                  • Size 324KB
                                  • SHA256 c44e83861ea09273f134bfcb92bd1c48053763f761576cac3a9985e7f88a51b5
                                  • MD5 SHA1 SHA512 SSDEEP

                                  wfyoot.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                  • Size 324KB
                                  • SHA256 c44e83861ea09273f134bfcb92bd1c48053763f761576cac3a9985e7f88a51b5
                                  • MD5 SHA1 SHA512 SSDEEP

                                  wfyoot.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                  • Size 324KB
                                  • SHA256 c44e83861ea09273f134bfcb92bd1c48053763f761576cac3a9985e7f88a51b5
                                  • MD5 SHA1 SHA512 SSDEEP

                                  wfyoot.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                  • Size 324KB
                                  • SHA256 c44e83861ea09273f134bfcb92bd1c48053763f761576cac3a9985e7f88a51b5
                                  • MD5 SHA1 SHA512 SSDEEP

                                  16F4.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\16F4.exe
                                  • Size 720KB
                                  • SHA256 beb1bdbc9b36231fe4e5319229e8316c75520551b717d5dde566f99be9e3a97e
                                  • MD5 SHA1 SHA512 SSDEEP

                                  16F4.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\16F4.exe
                                  • Size 720KB
                                  • SHA256 beb1bdbc9b36231fe4e5319229e8316c75520551b717d5dde566f99be9e3a97e
                                  • MD5 SHA1 SHA512 SSDEEP

                                  1C63.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\1C63.exe
                                  • Size 783KB
                                  • SHA256 e999aec023590c59392f9f7696f3d289aaac23b4d349e081f300d3c46f45bc13
                                  • MD5 SHA1 SHA512 SSDEEP

                                  1C63.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\1C63.exe
                                  • Size 783KB
                                  • SHA256 e999aec023590c59392f9f7696f3d289aaac23b4d349e081f300d3c46f45bc13
                                  • MD5 SHA1 SHA512 SSDEEP

                                  20D9.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\20D9.exe
                                  • Size 720KB
                                  • SHA256 4db9e17d126856919f1366761d80bbb6b852b4f14aa9b4698c50de83ddbe74df
                                  • MD5 SHA1 SHA512 SSDEEP

                                  20D9.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\20D9.exe
                                  • Size 720KB
                                  • SHA256 4db9e17d126856919f1366761d80bbb6b852b4f14aa9b4698c50de83ddbe74df
                                  • MD5 SHA1 SHA512 SSDEEP

                                  328D.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\328D.exe
                                  • Size 324KB
                                  • SHA256 c44e83861ea09273f134bfcb92bd1c48053763f761576cac3a9985e7f88a51b5
                                  • MD5 SHA1 SHA512 SSDEEP

                                  328D.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\328D.exe
                                  • Size 324KB
                                  • SHA256 c44e83861ea09273f134bfcb92bd1c48053763f761576cac3a9985e7f88a51b5
                                  • MD5 SHA1 SHA512 SSDEEP

                                  387A.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\387A.exe
                                  • Size 720KB
                                  • SHA256 579392006c5a06592ed6d56e0593e8c272b704c0849ecf6d8f1502ea02c75435
                                  • MD5 SHA1 SHA512 SSDEEP

                                  387A.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\387A.exe
                                  • Size 720KB
                                  • SHA256 579392006c5a06592ed6d56e0593e8c272b704c0849ecf6d8f1502ea02c75435
                                  • MD5 SHA1 SHA512 SSDEEP

                                  F5DE.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\F5DE.exe
                                  • Size 421KB
                                  • SHA256 2c8158054be8f59049ffba2ef8555dbe76812ddef3628dc9e06491ee982f1c61
                                  • MD5 SHA1 SHA512 SSDEEP

                                  F5DE.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\F5DE.exe
                                  • Size 421KB
                                  • SHA256 2c8158054be8f59049ffba2ef8555dbe76812ddef3628dc9e06491ee982f1c61
                                  • MD5 SHA1 SHA512 SSDEEP

                                  memory/332-174-0x0000000000667000-0x0000000000683000-memory.dmp

                                  memory/332-176-0x0000000000400000-0x0000000000456000-memory.dmp

                                  memory/332-175-0x00000000005C0000-0x00000000005F7000-memory.dmp

                                  memory/332-182-0x0000000000400000-0x0000000000456000-memory.dmp

                                  memory/332-181-0x0000000000667000-0x0000000000683000-memory.dmp

                                  memory/736-205-0x0000000000DE0000-0x0000000000DE7000-memory.dmp

                                  memory/736-206-0x0000000000DD0000-0x0000000000DDD000-memory.dmp

                                  memory/736-220-0x0000000000DE0000-0x0000000000DE7000-memory.dmp

                                  memory/1432-210-0x00000000004DA000-0x00000000004F6000-memory.dmp

                                  memory/1432-211-0x0000000000400000-0x0000000000456000-memory.dmp

                                  memory/1524-202-0x0000000000FC0000-0x0000000000FC6000-memory.dmp

                                  memory/1524-219-0x0000000000FC0000-0x0000000000FC6000-memory.dmp

                                  memory/1524-203-0x0000000000FB0000-0x0000000000FBB000-memory.dmp

                                  memory/1952-193-0x0000000000820000-0x000000000082C000-memory.dmp

                                  memory/1952-192-0x0000000000830000-0x0000000000836000-memory.dmp

                                  memory/1952-216-0x0000000000830000-0x0000000000836000-memory.dmp

                                  memory/2012-199-0x0000000000420000-0x0000000000429000-memory.dmp

                                  memory/2012-218-0x0000000000430000-0x0000000000435000-memory.dmp

                                  memory/2012-198-0x0000000000430000-0x0000000000435000-memory.dmp

                                  memory/2180-135-0x0000000000400000-0x000000000044B000-memory.dmp

                                  memory/2180-133-0x00000000004D0000-0x00000000004D9000-memory.dmp

                                  memory/2180-132-0x0000000000707000-0x0000000000717000-memory.dmp

                                  memory/2180-134-0x0000000000400000-0x000000000044B000-memory.dmp

                                  memory/2716-212-0x00000000005F0000-0x00000000005F7000-memory.dmp

                                  memory/2716-172-0x00000000005F0000-0x00000000005F7000-memory.dmp

                                  memory/2716-173-0x00000000005E0000-0x00000000005EB000-memory.dmp

                                  memory/3168-214-0x0000000000FE0000-0x0000000000FE5000-memory.dmp

                                  memory/3168-187-0x0000000000FD0000-0x0000000000FD9000-memory.dmp

                                  memory/3168-186-0x0000000000FE0000-0x0000000000FE5000-memory.dmp

                                  memory/4088-191-0x0000000000400000-0x0000000000456000-memory.dmp

                                  memory/4088-190-0x0000000000536000-0x0000000000552000-memory.dmp

                                  memory/4088-215-0x0000000000536000-0x0000000000552000-memory.dmp

                                  memory/4176-217-0x0000000001230000-0x0000000001252000-memory.dmp

                                  memory/4176-195-0x0000000001230000-0x0000000001252000-memory.dmp

                                  memory/4176-196-0x0000000001200000-0x0000000001227000-memory.dmp

                                  memory/4460-183-0x0000000000B90000-0x0000000000B99000-memory.dmp

                                  memory/4460-213-0x0000000000B90000-0x0000000000B99000-memory.dmp

                                  memory/4460-184-0x0000000000B80000-0x0000000000B8F000-memory.dmp

                                  memory/4536-209-0x0000000000D90000-0x0000000000D9B000-memory.dmp

                                  memory/4536-221-0x0000000000DA0000-0x0000000000DA8000-memory.dmp

                                  memory/4536-208-0x0000000000DA0000-0x0000000000DA8000-memory.dmp

                                  memory/4632-150-0x00000000065D0000-0x00000000065EE000-memory.dmp

                                  memory/4632-152-0x00000000066E0000-0x00000000068A2000-memory.dmp

                                  memory/4632-143-0x0000000005300000-0x0000000005918000-memory.dmp

                                  memory/4632-145-0x0000000005920000-0x0000000005A2A000-memory.dmp

                                  memory/4632-147-0x0000000005C90000-0x0000000005CF6000-memory.dmp

                                  memory/4632-148-0x0000000006470000-0x0000000006502000-memory.dmp

                                  memory/4632-142-0x0000000004D50000-0x00000000052F4000-memory.dmp

                                  memory/4632-141-0x0000000000400000-0x000000000046D000-memory.dmp

                                  memory/4632-149-0x0000000006510000-0x0000000006586000-memory.dmp

                                  memory/4632-163-0x000000000062D000-0x0000000000663000-memory.dmp

                                  memory/4632-151-0x0000000006690000-0x00000000066E0000-memory.dmp

                                  memory/4632-144-0x0000000004C70000-0x0000000004C82000-memory.dmp

                                  memory/4632-153-0x00000000068C0000-0x0000000006DEC000-memory.dmp

                                  memory/4632-140-0x0000000001FB0000-0x0000000002009000-memory.dmp

                                  memory/4632-164-0x0000000000400000-0x000000000046D000-memory.dmp

                                  memory/4632-139-0x000000000062D000-0x0000000000663000-memory.dmp

                                  memory/4632-146-0x0000000004C90000-0x0000000004CCC000-memory.dmp

                                  memory/4944-223-0x000000000083A000-0x0000000000856000-memory.dmp

                                  memory/4944-224-0x0000000000400000-0x0000000000456000-memory.dmp