Analysis

  • max time kernel
    192s
  • max time network
    301s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/05/2024, 23:34

General

  • Target
    93789a41239fd2a685450274d6d62d1ce5c4bd40e6b7af40265ec965fe4849ca.exe
  • Size 715KB
  • Sample240508-3kd1faga89
  • SHA256 93789a41239fd2a685450274d6d62d1ce5c4bd40e6b7af40265ec965fe4849ca
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub3

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3336
      • C:\Users\Admin\AppData\Local\Temp\93789a41239fd2a685450274d6d62d1ce5c4bd40e6b7af40265ec965fe4849ca.exe
        "C:\Users\Admin\AppData\Local\Temp\93789a41239fd2a685450274d6d62d1ce5c4bd40e6b7af40265ec965fe4849ca.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1744
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k move Fans Fans.cmd & Fans.cmd & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3364
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:984
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
              PID:2640
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              4⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:3244
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
              4⤵
                PID:3604
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c md 4457264
                4⤵
                  PID:232
                • C:\Windows\SysWOW64\findstr.exe
                  findstr /V "WoodenKillingAveInstitutions" Musical
                  4⤵
                    PID:4656
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b Hull + Adidas 4457264\A
                    4⤵
                      PID:4648
                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\4457264\Athens.pif
                      4457264\Athens.pif 4457264\A
                      4⤵
                      • Suspicious use of NtCreateUserProcessOtherParentProcess
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of FindShellTrayWindow
                      • Suspicious use of SendNotifyMessage
                      • Suspicious use of WriteProcessMemory
                      PID:2032
                    • C:\Windows\SysWOW64\PING.EXE
                      ping -n 5 127.0.0.1
                      4⤵
                      • Runs ping.exe
                      PID:1480
                • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\4457264\Athens.pif
                  C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\4457264\Athens.pif
                  2⤵
                  • Executes dropped EXE
                  • Checks SCSI registry key(s)
                  PID:2356

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    A

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\4457264\A
                    • Size 209KB
                    • SHA256 4598181f7071f6987c7eacc1c92b6b10bc8f32d6530cc02ed50736b77b7f704b
                    • MD5 SHA1 SHA512 SSDEEP

                    Athens.pif

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\4457264\Athens.pif
                    • Size 925KB
                    • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
                    • MD5 SHA1 SHA512 SSDEEP

                    Adidas

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Adidas
                    • Size 63KB
                    • SHA256 4a63ccde1362ac0b23d37d12b824f2b68e746563bfd2558692770a631836366d
                    • MD5 SHA1 SHA512 SSDEEP

                    Adoption

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Adoption
                    • Size 69KB
                    • SHA256 5109d2c454c9986c84d0fd68c5e64f46864308157d4aa2c9e0faca325f88ed1b
                    • MD5 SHA1 SHA512 SSDEEP

                    Always

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Always
                    • Size 44KB
                    • SHA256 a954265fe6ffb8cace1a6a39db10fa7ceadd0bc2c2e8d85c16def2dd2bb3fa2e
                    • MD5 SHA1 SHA512 SSDEEP

                    Colleges

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Colleges
                    • Size 23KB
                    • SHA256 8df7232bdb239eaf6c3577f8ff9f35ec9130a778e9e8e97984e3faf4edfdba1c
                    • MD5 SHA1 SHA512 SSDEEP

                    Contrary

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Contrary
                    • Size 41KB
                    • SHA256 3671f7d700301899d1595b911e3158f48301eb50d4b6ee77b6b5f36616784c6b
                    • MD5 SHA1 SHA512 SSDEEP

                    Detailed

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Detailed
                    • Size 25KB
                    • SHA256 f4b2220916c3af4ee0f8de3362cfe2fe4c1803ff4883ab1d0f33526960f6b9e0
                    • MD5 SHA1 SHA512 SSDEEP

                    Distant

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Distant
                    • Size 40KB
                    • SHA256 06533a7aad3755dd3d14499934a8473f37b1d44812315ac6d075e7a5ea77b360
                    • MD5 SHA1 SHA512 SSDEEP

                    Enhance

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Enhance
                    • Size 51KB
                    • SHA256 85858302972727a412dc33c1c06c616e8970aeba074d9c8ea1192d0b2485b30b
                    • MD5 SHA1 SHA512 SSDEEP

                    Entrepreneur

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Entrepreneur
                    • Size 61KB
                    • SHA256 dc454423386b4d9ba9926f64bd16b6ff6714cb9ee9a81080790bdee5a8260733
                    • MD5 SHA1 SHA512 SSDEEP

                    Entry

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Entry
                    • Size 31KB
                    • SHA256 7e41ff7993d423d49ebf2ebeb942841c8e2034eaa7c8efcd084cb2b3edf94255
                    • MD5 SHA1 SHA512 SSDEEP

                    Evaluated

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Evaluated
                    • Size 6KB
                    • SHA256 d581fe67a23d82571d2b335ec934cbfbb0408469514735588b0d8e70a2640aac
                    • MD5 SHA1 SHA512 SSDEEP

                    Fans

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Fans
                    • Size 16KB
                    • SHA256 66f7e5ed7a29f3e08a3f767b0ac7c484e47137c0e49c3d2ed177e79e02f41b66
                    • MD5 SHA1 SHA512 SSDEEP

                    Francisco

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Francisco
                    • Size 32KB
                    • SHA256 beeafa7ecc2ede3aa12420f5fdd4f5d19fd967ad767f9ae30ba69cffcfe84d4f
                    • MD5 SHA1 SHA512 SSDEEP

                    Hull

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Hull
                    • Size 146KB
                    • SHA256 12e736ac80a8079fc0fd4bba2e99ded494f66ce7f963ebc38b29208439d57072
                    • MD5 SHA1 SHA512 SSDEEP

                    Incidence

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Incidence
                    • Size 8KB
                    • SHA256 12695b2a578cd0018dba07f54f9fa2707ea94aca39d1d42bcd98b09b632dfe59
                    • MD5 SHA1 SHA512 SSDEEP

                    Investigations

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Investigations
                    • Size 47KB
                    • SHA256 7e1a8e99a0466803d4a64f4fb788a22708db82751a649ec62786c89efa9fa2f2
                    • MD5 SHA1 SHA512 SSDEEP

                    Kw

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Kw
                    • Size 27KB
                    • SHA256 89034b4ba26837c53a2e304bbfa9aa6233de20ad4eb3d15e2cba0a76830a964c
                    • MD5 SHA1 SHA512 SSDEEP

                    Mall

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Mall
                    • Size 5KB
                    • SHA256 175448f106e3095c712f37109548d39724f8e2b7af250b2f7fbfc3196e8e8cc6
                    • MD5 SHA1 SHA512 SSDEEP

                    Man

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Man
                    • Size 8KB
                    • SHA256 1840342f579e77c7252f4eed8a9f372391d0145d5263a5f22bbc2b36cd22dd01
                    • MD5 SHA1 SHA512 SSDEEP

                    Marina

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Marina
                    • Size 37KB
                    • SHA256 ded4932f3ce8ad1567a350f911f4a834ac30e4bec8535f054d00c77a4396cca5
                    • MD5 SHA1 SHA512 SSDEEP

                    Musical

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Musical
                    • Size 160B
                    • SHA256 54246c9941d161c3378ed9cef6c3e80f6759dde6ca196de6bf043e88eacf8d1d
                    • MD5 SHA1 SHA512

                    Permissions

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Permissions
                    • Size 47KB
                    • SHA256 dea9042f788b06de5f694d24d386c733b816befe4659446190840310193a8af7
                    • MD5 SHA1 SHA512 SSDEEP

                    Rats

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Rats
                    • Size 42KB
                    • SHA256 342d0c3b8549802360074a3373820e52ec1e511cebf2337b059f8ea1116f2539
                    • MD5 SHA1 SHA512 SSDEEP

                    Rebecca

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Rebecca
                    • Size 6KB
                    • SHA256 143c84f96643308faee39da3afc1fc682f8b5cf265cd5b1ccf78456c2eb56e26
                    • MD5 SHA1 SHA512 SSDEEP

                    Relevance

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Relevance
                    • Size 36KB
                    • SHA256 fde970244977b9ead75752a2e35987322922701f2e25fe00819f195673b585ff
                    • MD5 SHA1 SHA512 SSDEEP

                    Ryan

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Ryan
                    • Size 38KB
                    • SHA256 dd73a2f5ac4f6ab8c31e1c2987349776176983ebb9e088c9507b6844f439ad7f
                    • MD5 SHA1 SHA512 SSDEEP

                    Singles

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Singles
                    • Size 33KB
                    • SHA256 a74a0f90d005e1af622d92d800897a10c123da6c2ceb1ac6b947478965a0a6d0
                    • MD5 SHA1 SHA512 SSDEEP

                    Solar

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Solar
                    • Size 41KB
                    • SHA256 a3a603599973f8b1bccd2059023c3a0b542023f63a6e384f988cb3a1ac029e11
                    • MD5 SHA1 SHA512 SSDEEP

                    Stands

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Stands
                    • Size 21KB
                    • SHA256 92b1eb807c524bab4c8feafd4921f3aed0f3a5e826060d2181d7fecb6cb90d0d
                    • MD5 SHA1 SHA512 SSDEEP

                    Terminal

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Terminal
                    • Size 63KB
                    • SHA256 f5319273b8cd3dd2818d4962c63426b1be9d95838a5e37c185ab22c64716e881
                    • MD5 SHA1 SHA512 SSDEEP

                    Una

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Una
                    • Size 42KB
                    • SHA256 45484ee2903b6dcf59ed1f02a615c2596011b69dd5fb6b3f05497b2ad86e33d4
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/2356-80-0x0000000000400000-0x000000000040B000-memory.dmp

                    memory/2356-81-0x0000000000400000-0x000000000040B000-memory.dmp