Analysis

  • max time kernel
    188s
  • max time network
    244s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02/05/2024, 22:28

General

  • Target
    e787e9b3eb07676a4848cb9ff1dad9a19a5b3aa11a220b2ba3d447ac6680abeb.exe
  • Size 734KB
  • Sample240502-2d1p7aac35
  • SHA256 e787e9b3eb07676a4848cb9ff1dad9a19a5b3aa11a220b2ba3d447ac6680abeb
  • 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:3328
      • C:\Users\Admin\AppData\Local\Temp\e787e9b3eb07676a4848cb9ff1dad9a19a5b3aa11a220b2ba3d447ac6680abeb.exe
        "C:\Users\Admin\AppData\Local\Temp\e787e9b3eb07676a4848cb9ff1dad9a19a5b3aa11a220b2ba3d447ac6680abeb.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3652
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k move Spirit Spirit.cmd & Spirit.cmd & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2376
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:800
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
              PID:4264
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              4⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:2916
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
              4⤵
                PID:2352
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c md 1121
                4⤵
                  PID:3816
                • C:\Windows\SysWOW64\findstr.exe
                  findstr /V "decentrisingadvertisementssuite" Appliance
                  4⤵
                    PID:1336
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b Annually + Protective 1121\b
                    4⤵
                      PID:2196
                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\1121\Existence.pif
                      1121\Existence.pif 1121\b
                      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:96
                    • C:\Windows\SysWOW64\PING.EXE
                      ping -n 5 127.0.0.1
                      4⤵
                      • Runs ping.exe
                      PID:1728
                • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\1121\Existence.pif
                  C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\1121\Existence.pif
                  2⤵
                  • Executes dropped EXE
                  • Checks SCSI registry key(s)
                  PID:2960

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    Existence.pif

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\1121\Existence.pif
                    • Size 925KB
                    • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
                    • MD5 SHA1 SHA512 SSDEEP

                    b

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\1121\b
                    • Size 240KB
                    • SHA256 b882ba15802e57e6563079c7b9835e93726447a42ea00e717fbfed453e0de309
                    • MD5 SHA1 SHA512 SSDEEP

                    Alexandria

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Alexandria
                    • Size 60KB
                    • SHA256 06a2619d732d91985a97b10924cc5ee69eca484b24fc49ba2b9390df6a5c5d40
                    • MD5 SHA1 SHA512 SSDEEP

                    Annually

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Annually
                    • Size 173KB
                    • SHA256 49fff67abf55f9853cddb781a2b2885d4578d0d5e1ee0466a8d3ff79e252371b
                    • MD5 SHA1 SHA512 SSDEEP

                    Appliance

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Appliance
                    • Size 145B
                    • SHA256 96e3ed72cee2a5870d9e1c5636ed4fda0b1f4ee757059728e92c8f42f02993c4
                    • MD5 SHA1 SHA512

                    Chair

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Chair
                    • Size 39KB
                    • SHA256 01c869a01416c3660c4b397be2fff90e7f3b67bfc42279fefcae1bac26bb9eaf
                    • MD5 SHA1 SHA512 SSDEEP

                    Cube

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Cube
                    • Size 11KB
                    • SHA256 3a2efebd6b6321314705e2ee97152902f620d6c4eddc07ed2b547b1811da1391
                    • MD5 SHA1 SHA512 SSDEEP

                    Dealers

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Dealers
                    • Size 63KB
                    • SHA256 aacb82679d8d27c9d8d0e4fea4a21df11a11050a0ff6bd757565c15a01f9badd
                    • MD5 SHA1 SHA512 SSDEEP

                    Faq

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Faq
                    • Size 35KB
                    • SHA256 f7985985abc7af012f037eb817e0528536c84604e7466f31364d08bd148a6fd8
                    • MD5 SHA1 SHA512 SSDEEP

                    Hardly

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Hardly
                    • Size 8KB
                    • SHA256 c0803ac9e0a11189cbb6ed62d6444df80ab3c399534453d7e03cd3e59f9669da
                    • MD5 SHA1 SHA512 SSDEEP

                    Honduras

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Honduras
                    • Size 18KB
                    • SHA256 de36b296029f55670c9d97f1864f1b20cf481e20c396e4b564344c0a4198a9cb
                    • MD5 SHA1 SHA512 SSDEEP

                    Horizon

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Horizon
                    • Size 66KB
                    • SHA256 a98131d193bda98ff749d4669a081f856aedf7a87fa3849f02bed4a3da530bd4
                    • MD5 SHA1 SHA512 SSDEEP

                    Improve

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Improve
                    • Size 54KB
                    • SHA256 5407b3ebb6000281ee905fd3bdd6b96436b8fb232c06e1d5b46c9878f638cdd8
                    • MD5 SHA1 SHA512 SSDEEP

                    Inns

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Inns
                    • Size 42KB
                    • SHA256 b7e3f2e9f08fcf3b5ea94f9fefe73275567a0f5c11263901546c6667a429cc5c
                    • MD5 SHA1 SHA512 SSDEEP

                    Kelkoo

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Kelkoo
                    • Size 44KB
                    • SHA256 b1ce10172dfc8c66021ec8e94a5774681d73e9fbed7cf52d21ec8b1755d0617b
                    • MD5 SHA1 SHA512 SSDEEP

                    Oe

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Oe
                    • Size 41KB
                    • SHA256 ff68f50ab8fee781f91a3fe0d175a97e2126b03aef3ec21139224330fbf3d330
                    • MD5 SHA1 SHA512 SSDEEP

                    Paypal

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Paypal
                    • Size 35KB
                    • SHA256 71ead8aa39ba5ab49fed0dd3145f89f5f75eaf0929100948a6b280f22dfb6942
                    • MD5 SHA1 SHA512 SSDEEP

                    Pharmacies

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Pharmacies
                    • Size 31KB
                    • SHA256 55083b8bc8f1776e7202225ea8896b0377b669a9c853d09aa294853705e08d60
                    • MD5 SHA1 SHA512 SSDEEP

                    Protective

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Protective
                    • Size 67KB
                    • SHA256 8630177ed24b4143fd5d72584e01fe51cb3b407d899638f3fe95d734f389a789
                    • MD5 SHA1 SHA512 SSDEEP

                    Publications

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Publications
                    • Size 40KB
                    • SHA256 8b39eac835db993685ccc47fa51581d0481feb82181a024e8dc82d0c6998d5a2
                    • MD5 SHA1 SHA512 SSDEEP

                    Remainder

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Remainder
                    • Size 67KB
                    • SHA256 42aff549ff3f6be7336b9ae9a616fcc927e2cf75dc09d4a9a2e51f33968dff18
                    • MD5 SHA1 SHA512 SSDEEP

                    Securely

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Securely
                    • Size 61KB
                    • SHA256 ceb583acefb2443a5bab27f21f6f15668fc853aa85f148787ddc8dab28f36cac
                    • MD5 SHA1 SHA512 SSDEEP

                    Spell

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Spell
                    • Size 36KB
                    • SHA256 8d43cd6ee32a87b53944d2ef0637c629925c67b664cdc49b010c0d9bccbde87a
                    • MD5 SHA1 SHA512 SSDEEP

                    Spirit

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Spirit
                    • Size 25KB
                    • SHA256 c2a330adbfbcafc43fd6a1c0e2738f4da8419719efc3fa72fc3d519024a5a701
                    • MD5 SHA1 SHA512 SSDEEP

                    Tank

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Tank
                    • Size 16KB
                    • SHA256 66c472499dff5759ea709e4412008b09aae9c8479fa325ecf47c9a5ea5776ebc
                    • MD5 SHA1 SHA512 SSDEEP

                    Transform

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Transform
                    • Size 48KB
                    • SHA256 a1e1fd3dd8cc3a1e978eab91c376ad040687cad05d261301a6f7eadfe9a75fb2
                    • MD5 SHA1 SHA512 SSDEEP

                    Trials

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Trials
                    • Size 36KB
                    • SHA256 c377583fb2206d029add6182126ec7374bcdc27baaa9c3e8c17f4d1842b7a8e2
                    • MD5 SHA1 SHA512 SSDEEP

                    Vendors

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Vendors
                    • Size 57KB
                    • SHA256 a2f69512d8c1ab43296ff0d0d0c74d9120581c7df5b51c03376b16db071a6153
                    • MD5 SHA1 SHA512 SSDEEP

                    Votes

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Votes
                    • Size 16KB
                    • SHA256 807ed5ac623035d54eefd896cd6cc6f7569a27252dfa62fee547ce9cfb8418d3
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/2960-72-0x0000000000400000-0x000000000040B000-memory.dmp

                    memory/2960-73-0x0000000000400000-0x000000000040B000-memory.dmp