Analysis

  • max time kernel
    161s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2022, 22:12

General

  • Target
    d9332d728584e11257e1f17336d61693.exe
  • Size 207KB
  • Sample221012-14g54aefh2
  • SHA256 535963abdc42887378988042fcea77dd9aec415c3fd45e91a8447a81dcc0957a
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 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 19 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9332d728584e11257e1f17336d61693.exe
    "C:\Users\Admin\AppData\Local\Temp\d9332d728584e11257e1f17336d61693.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:384
  • C:\Users\Admin\AppData\Local\Temp\7177.exe
    C:\Users\Admin\AppData\Local\Temp\7177.exe
    1⤵
    • Executes dropped EXE
    PID:112
  • C:\Users\Admin\AppData\Local\Temp\7512.exe
    C:\Users\Admin\AppData\Local\Temp\7512.exe
    1⤵
    • Executes dropped EXE
    PID:1536
  • C:\Users\Admin\AppData\Local\Temp\7AFE.exe
    C:\Users\Admin\AppData\Local\Temp\7AFE.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:396
    • 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:2268
      • 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:1724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 884
      2⤵
      • Program crash
      PID:3200
  • C:\Users\Admin\AppData\Local\Temp\88BB.exe
    C:\Users\Admin\AppData\Local\Temp\88BB.exe
    1⤵
    • Executes dropped EXE
    PID:424
  • C:\Users\Admin\AppData\Local\Temp\9B69.exe
    C:\Users\Admin\AppData\Local\Temp\9B69.exe
    1⤵
    • Executes dropped EXE
    PID:2336
  • C:\Users\Admin\AppData\Local\Temp\A146.exe
    C:\Users\Admin\AppData\Local\Temp\A146.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4976
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:8
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1560
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:4672
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:3028
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:4400
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:4024
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1896
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:924
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:4388
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 396 -ip 396
                      1⤵
                        PID:1384
                      • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                        C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                        1⤵
                        • Executes dropped EXE
                        PID:2348
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 360
                          2⤵
                          • Program crash
                          PID:1808
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2348 -ip 2348
                        1⤵
                          PID:3756
                        • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                          C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                          1⤵
                          • Executes dropped EXE
                          PID:4836
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4836 -s 424
                            2⤵
                            • Program crash
                            PID:2340
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4836 -ip 4836
                          1⤵
                            PID:3236

                          Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                7177.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7177.exe
                                • Size 766KB
                                • SHA256 4e9e3eb73aff7e5766f8e0bdc77d870bbc40ffa2f185c0de418f1f37ad235ec7
                                • MD5 SHA1 SHA512 SSDEEP

                                7177.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7177.exe
                                • Size 766KB
                                • SHA256 4e9e3eb73aff7e5766f8e0bdc77d870bbc40ffa2f185c0de418f1f37ad235ec7
                                • MD5 SHA1 SHA512 SSDEEP

                                7512.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7512.exe
                                • Size 703KB
                                • SHA256 8766d72c028389db7e31d5e11af7d5f7724fb7e9b80db85462c8684189e21743
                                • MD5 SHA1 SHA512 SSDEEP

                                7512.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7512.exe
                                • Size 703KB
                                • SHA256 8766d72c028389db7e31d5e11af7d5f7724fb7e9b80db85462c8684189e21743
                                • MD5 SHA1 SHA512 SSDEEP

                                7AFE.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7AFE.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                7AFE.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7AFE.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                88BB.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\88BB.exe
                                • Size 703KB
                                • SHA256 88e950403fcc545763655dc89578773660977926bf00d09baa4a2912ff8b695d
                                • MD5 SHA1 SHA512 SSDEEP

                                88BB.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\88BB.exe
                                • Size 703KB
                                • SHA256 88e950403fcc545763655dc89578773660977926bf00d09baa4a2912ff8b695d
                                • MD5 SHA1 SHA512 SSDEEP

                                9B69.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\9B69.exe
                                • Size 720KB
                                • SHA256 0103856c001d654207c4496b55b06921f5ed3818450a624464c5062b7668abb5
                                • MD5 SHA1 SHA512 SSDEEP

                                9B69.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\9B69.exe
                                • Size 720KB
                                • SHA256 0103856c001d654207c4496b55b06921f5ed3818450a624464c5062b7668abb5
                                • MD5 SHA1 SHA512 SSDEEP

                                A146.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\A146.exe
                                • Size 447KB
                                • SHA256 4b7f5a3df8170c4ea12a0ff058abb3cab8978063f551f32174ec63fa0d39071d
                                • MD5 SHA1 SHA512 SSDEEP

                                A146.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\A146.exe
                                • Size 447KB
                                • SHA256 4b7f5a3df8170c4ea12a0ff058abb3cab8978063f551f32174ec63fa0d39071d
                                • MD5 SHA1 SHA512 SSDEEP

                                memory/8-183-0x0000000001430000-0x000000000143B000-memory.dmp

                                memory/8-180-0x0000000001440000-0x0000000001447000-memory.dmp

                                memory/384-135-0x0000000000400000-0x0000000000480000-memory.dmp

                                memory/384-133-0x00000000005C0000-0x00000000005C9000-memory.dmp

                                memory/384-134-0x0000000000400000-0x0000000000480000-memory.dmp

                                memory/384-132-0x000000000079E000-0x00000000007AE000-memory.dmp

                                memory/396-207-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/396-158-0x000000000069E000-0x00000000006BB000-memory.dmp

                                memory/396-159-0x00000000005F0000-0x0000000000627000-memory.dmp

                                memory/396-206-0x000000000069E000-0x00000000006BB000-memory.dmp

                                memory/396-150-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/396-145-0x000000000069E000-0x00000000006BB000-memory.dmp

                                memory/396-146-0x00000000005F0000-0x0000000000627000-memory.dmp

                                memory/924-175-0x0000000000620000-0x000000000062D000-memory.dmp

                                memory/924-174-0x0000000000630000-0x0000000000637000-memory.dmp

                                memory/924-199-0x0000000000630000-0x0000000000637000-memory.dmp

                                memory/1560-165-0x00000000003E0000-0x00000000003EF000-memory.dmp

                                memory/1560-191-0x00000000003F0000-0x00000000003F9000-memory.dmp

                                memory/1560-164-0x00000000003F0000-0x00000000003F9000-memory.dmp

                                memory/1896-179-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

                                memory/1896-188-0x0000000000CB0000-0x0000000000CBB000-memory.dmp

                                memory/2268-201-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/2268-197-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/2268-196-0x000000000065E000-0x000000000067A000-memory.dmp

                                memory/2268-200-0x000000000065E000-0x000000000067A000-memory.dmp

                                memory/2348-204-0x00000000004F4000-0x0000000000510000-memory.dmp

                                memory/2348-205-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/3028-168-0x00000000003F0000-0x00000000003F6000-memory.dmp

                                memory/3028-169-0x00000000003E0000-0x00000000003EC000-memory.dmp

                                memory/3028-195-0x00000000003F0000-0x00000000003F6000-memory.dmp

                                memory/4024-187-0x0000000000BD0000-0x0000000000BD9000-memory.dmp

                                memory/4024-177-0x0000000000BE0000-0x0000000000BE5000-memory.dmp

                                memory/4388-185-0x0000000000790000-0x000000000079B000-memory.dmp

                                memory/4388-182-0x00000000007A0000-0x00000000007A8000-memory.dmp

                                memory/4400-184-0x0000000000A30000-0x0000000000A57000-memory.dmp

                                memory/4400-178-0x0000000000A60000-0x0000000000A82000-memory.dmp

                                memory/4672-186-0x0000000000160000-0x0000000000169000-memory.dmp

                                memory/4672-181-0x0000000000170000-0x0000000000175000-memory.dmp

                                memory/4836-217-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/4836-216-0x0000000000513000-0x000000000052F000-memory.dmp

                                memory/4976-210-0x0000000005880000-0x000000000598A000-memory.dmp

                                memory/4976-213-0x0000000005DF0000-0x0000000005E56000-memory.dmp

                                memory/4976-160-0x000000000059E000-0x00000000005D5000-memory.dmp

                                memory/4976-208-0x00000000051D0000-0x00000000057E8000-memory.dmp

                                memory/4976-209-0x0000000005860000-0x0000000005872000-memory.dmp

                                memory/4976-162-0x0000000000400000-0x0000000000475000-memory.dmp

                                memory/4976-211-0x0000000005C10000-0x0000000005C4C000-memory.dmp

                                memory/4976-212-0x0000000002060000-0x00000000020F2000-memory.dmp

                                memory/4976-189-0x000000000059E000-0x00000000005D5000-memory.dmp

                                memory/4976-190-0x0000000000400000-0x0000000000475000-memory.dmp

                                memory/4976-215-0x00000000071A0000-0x0000000007216000-memory.dmp

                                memory/4976-161-0x0000000000520000-0x0000000000579000-memory.dmp

                                memory/4976-202-0x0000000004C20000-0x00000000051C4000-memory.dmp

                                memory/4976-218-0x00000000064B0000-0x00000000064CE000-memory.dmp

                                memory/4976-219-0x00000000072A0000-0x00000000072F0000-memory.dmp

                                memory/4976-220-0x0000000006730000-0x00000000068F2000-memory.dmp

                                memory/4976-221-0x0000000007320000-0x000000000784C000-memory.dmp