Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    11/11/2020, 08:11

General

  • Target
    f1def32c04f93007b96a99b5a00a6d2c.exe
  • Size 351KB
  • Sample201111-p5vy5gbjca
  • SHA256 dcd09b13e19a92b884cb28ba68a979c7f0ebb5426646a4621573eed16d5582fb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://smk10ddde.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 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 2234 IoCs
  • Suspicious behavior: MapViewOfSection 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 70 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1def32c04f93007b96a99b5a00a6d2c.exe
    "C:\Users\Admin\AppData\Local\Temp\f1def32c04f93007b96a99b5a00a6d2c.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3284
  • C:\Users\Admin\AppData\Local\Temp\91A7.exe
    C:\Users\Admin\AppData\Local\Temp\91A7.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:192
    • C:\Users\Admin\AppData\Local\Temp\91A7.exe
      C:\Users\Admin\AppData\Local\Temp\91A7.exe
      2⤵
      • Executes dropped EXE
      PID:2128
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:3320
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1544
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:1720
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:1336
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1652
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1044
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:3660
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:3688
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:612
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:788
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:3008
                        • C:\Windows\SysWOW64\explorer.exe
                          C:\Windows\SysWOW64\explorer.exe
                          1⤵
                            PID:3296
                          • C:\Windows\SysWOW64\explorer.exe
                            C:\Windows\SysWOW64\explorer.exe
                            1⤵
                              PID:3880
                            • C:\Windows\explorer.exe
                              C:\Windows\explorer.exe
                              1⤵
                                PID:3620
                              • C:\Windows\SysWOW64\explorer.exe
                                C:\Windows\SysWOW64\explorer.exe
                                1⤵
                                  PID:3808

                                Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      memory/192-106-0x0000000000A90000-0x0000000000A91000-memory.dmp

                                      memory/612-379-0x0000000000420000-0x0000000000424000-memory.dmp

                                      memory/612-372-0x0000000000410000-0x0000000000419000-memory.dmp

                                      memory/788-428-0x0000000000FF0000-0x0000000000FF9000-memory.dmp

                                      memory/788-435-0x0000000001200000-0x0000000001205000-memory.dmp

                                      memory/1044-200-0x0000000000A20000-0x0000000000A29000-memory.dmp

                                      memory/1044-197-0x0000000000A10000-0x0000000000A1E000-memory.dmp

                                      memory/1336-98-0x0000000003470000-0x000000000347B000-memory.dmp

                                      memory/1544-40-0x00000000009F0000-0x00000000009FC000-memory.dmp

                                      memory/1544-41-0x0000000000C80000-0x0000000000C87000-memory.dmp

                                      memory/1652-145-0x0000000000AA0000-0x0000000000AA7000-memory.dmp

                                      memory/1652-143-0x0000000000A90000-0x0000000000A9B000-memory.dmp

                                      memory/1720-72-0x0000000000C90000-0x0000000000C94000-memory.dmp

                                      memory/1720-71-0x0000000000C80000-0x0000000000C89000-memory.dmp

                                      memory/2128-117-0x0000000000400000-0x000000000044B000-memory.dmp

                                      memory/2128-123-0x0000000000400000-0x000000000044B000-memory.dmp

                                      memory/2128-125-0x0000000000560000-0x0000000000593000-memory.dmp

                                      memory/2312-1164-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1216-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-32-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-36-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-30-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-31-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-39-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-42-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-29-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-38-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-43-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-45-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-46-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-44-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-47-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-48-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-49-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-50-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-52-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-51-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-53-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-54-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-55-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-56-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-57-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-59-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-58-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-60-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-62-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-61-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-63-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-67-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-69-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-28-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-27-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-66-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-70-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-26-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-74-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-73-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-75-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-77-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-76-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-78-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-80-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-79-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-81-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-82-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-84-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-83-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-85-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-87-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-86-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-88-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-90-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-91-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-89-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-92-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-94-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-25-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-95-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-24-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-23-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-22-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-21-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-20-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-18-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-19-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-132-0x00000000008F0000-0x00000000008FB000-memory.dmp

                                      memory/2312-17-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-15-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-13-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-180-0x00000000008F0000-0x00000000008FB000-memory.dmp

                                      memory/2312-1449-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1445-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-12-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1440-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1436-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1434-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-276-0x00000000008F0000-0x00000000008FB000-memory.dmp

                                      memory/2312-1429-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1425-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1415-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-11-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-10-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-9-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-398-0x0000000000960000-0x0000000000969000-memory.dmp

                                      memory/2312-7-0x0000000004950000-0x00000000049C5000-memory.dmp

                                      memory/2312-6-0x0000000000950000-0x00000000009BB000-memory.dmp

                                      memory/2312-2-0x00000000008B0000-0x00000000008C5000-memory.dmp

                                      memory/2312-450-0x0000000000950000-0x000000000095C000-memory.dmp

                                      memory/2312-460-0x0000000000950000-0x000000000095C000-memory.dmp

                                      memory/2312-1423-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1420-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1411-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1407-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1405-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1400-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1396-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1391-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-621-0x00000000008F0000-0x00000000008FB000-memory.dmp

                                      memory/2312-1386-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1382-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1377-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-674-0x0000000000960000-0x0000000000969000-memory.dmp

                                      memory/2312-1373-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1368-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1363-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1345-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1012-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1015-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1023-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1029-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1036-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1041-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1055-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1049-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1061-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1069-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1073-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1080-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1084-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1090-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1096-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1105-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1111-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1118-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1101-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1132-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1127-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1139-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1144-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1156-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1151-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1169-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1359-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1181-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1177-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1189-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1194-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1202-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1207-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-34-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1221-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1229-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1241-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1246-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1234-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1258-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1254-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1264-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1271-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1282-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1276-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1289-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1294-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1300-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1306-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1311-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1315-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1320-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1327-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1332-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1338-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1350-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/2312-1354-0x00000000008E0000-0x00000000008EA000-memory.dmp

                                      memory/3008-484-0x0000000000110000-0x0000000000137000-memory.dmp

                                      memory/3008-493-0x0000000000140000-0x0000000000162000-memory.dmp

                                      memory/3284-0-0x0000000004E70000-0x0000000004E71000-memory.dmp

                                      memory/3296-545-0x0000000000C50000-0x0000000000C59000-memory.dmp

                                      memory/3296-552-0x0000000000C60000-0x0000000000C65000-memory.dmp

                                      memory/3320-14-0x0000000000AD0000-0x0000000000B3B000-memory.dmp

                                      memory/3620-654-0x0000000000590000-0x000000000059D000-memory.dmp

                                      memory/3620-661-0x00000000005A0000-0x00000000005A7000-memory.dmp

                                      memory/3660-249-0x0000000000F90000-0x0000000000F99000-memory.dmp

                                      memory/3660-252-0x0000000000FA0000-0x0000000000FA5000-memory.dmp

                                      memory/3688-312-0x0000000000440000-0x0000000000446000-memory.dmp

                                      memory/3688-307-0x0000000000430000-0x000000000043C000-memory.dmp

                                      memory/3808-710-0x0000000000190000-0x000000000019B000-memory.dmp

                                      memory/3808-717-0x00000000001A0000-0x00000000001A8000-memory.dmp

                                      memory/3880-611-0x0000000000F10000-0x0000000000F16000-memory.dmp

                                      memory/3880-603-0x0000000000F00000-0x0000000000F0B000-memory.dmp