Analysis

  • max time kernel
    133s
  • max time network
    258s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    06/05/2024, 05:13

General

  • Target
    5ac311dc851b50ca928ce97e7e8ffc6baaeaaf0274b1e9bc92ef0e98ebe3659e.exe
  • Size 723KB
  • Sample240506-fwepsadb93
  • SHA256 5ac311dc851b50ca928ce97e7e8ffc6baaeaaf0274b1e9bc92ef0e98ebe3659e
  • 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:3416
      • C:\Users\Admin\AppData\Local\Temp\5ac311dc851b50ca928ce97e7e8ffc6baaeaaf0274b1e9bc92ef0e98ebe3659e.exe
        "C:\Users\Admin\AppData\Local\Temp\5ac311dc851b50ca928ce97e7e8ffc6baaeaaf0274b1e9bc92ef0e98ebe3659e.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4604
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k move Chick Chick.cmd & Chick.cmd & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:500
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:4608
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
              PID:3280
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              4⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:340
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
              4⤵
                PID:1968
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c md 331253
                4⤵
                  PID:4576
                • C:\Windows\SysWOW64\findstr.exe
                  findstr /V "CdHipSpecializedDeny" Antibody
                  4⤵
                    PID:2336
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b Avon + Beliefs + Indicate 331253\N
                    4⤵
                      PID:644
                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\331253\Sunday.pif
                      331253\Sunday.pif 331253\N
                      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:3932
                    • C:\Windows\SysWOW64\PING.EXE
                      ping -n 5 127.0.0.1
                      4⤵
                      • Runs ping.exe
                      PID:3132
                • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\331253\Sunday.pif
                  C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\331253\Sunday.pif
                  2⤵
                  • Executes dropped EXE
                  • Checks SCSI registry key(s)
                  PID:2332

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    N

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\331253\N
                    • Size 227KB
                    • SHA256 226e90514eb1c838e33b5116b3966a9ec5215b1c1cd375622bb0e9f8d9a0c7cc
                    • MD5 SHA1 SHA512 SSDEEP

                    Sunday.pif

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\331253\Sunday.pif
                    • Size 925KB
                    • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
                    • MD5 SHA1 SHA512 SSDEEP

                    Amsterdam

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Amsterdam
                    • Size 67KB
                    • SHA256 c9db9c046cde05c4f1f408d9a8f5644fbca12eb93616f07e68272ca377c94839
                    • MD5 SHA1 SHA512 SSDEEP

                    Antibody

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Antibody
                    • Size 138B
                    • SHA256 906c44cc41f8cf75e44ef640789f236d92e89a1c05219c33e79d9f1ac04272d5
                    • MD5 SHA1 SHA512

                    Arts

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Arts
                    • Size 14KB
                    • SHA256 040518191cbf483569e3195fc679f9ec389eeef3d98aa5943605b94a74c3c67d
                    • MD5 SHA1 SHA512 SSDEEP

                    Asks

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Asks
                    • Size 6KB
                    • SHA256 6b39b8e9b46828c288a6e07243f6e04f5698592cc3c3dae60beb444ca26a9680
                    • MD5 SHA1 SHA512 SSDEEP

                    Assessing

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Assessing
                    • Size 34KB
                    • SHA256 2375acc6ca34d71058bbddada1a4ce9b16ffcdd2ac834292a0612c0b7e28f1ea
                    • MD5 SHA1 SHA512 SSDEEP

                    Avon

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Avon
                    • Size 100KB
                    • SHA256 4504b75ec99fcf22fd4f975aeac8eea4f1778f4e05b453026cd68d49295cf0fe
                    • MD5 SHA1 SHA512 SSDEEP

                    Awareness

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Awareness
                    • Size 41KB
                    • SHA256 04b204e086dfc427ffd568fcce6a3d4b6d3b48e20498863b8ea2a378051f9627
                    • MD5 SHA1 SHA512 SSDEEP

                    Beliefs

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Beliefs
                    • Size 25KB
                    • SHA256 dad459dc80c473029bec3f0e30e3546b2c552a65ed6c05f735f3a2131fa9053d
                    • MD5 SHA1 SHA512 SSDEEP

                    Benefit

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Benefit
                    • Size 15KB
                    • SHA256 67df977ecbb148658061281c8c9e41622a4e15652699c44e74ad3283341905ca
                    • MD5 SHA1 SHA512 SSDEEP

                    Bk

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Bk
                    • Size 12KB
                    • SHA256 8ad3b43c60a0b85e8edf4d1ed3c17bc7f032a710e0121167b4e6d8bc42ce2211
                    • MD5 SHA1 SHA512 SSDEEP

                    Catherine

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Catherine
                    • Size 45KB
                    • SHA256 15a487e97ea1e6f2f6e1847bbde4afd5d1fc684ae1544e1b9bdbab2ec9548d78
                    • MD5 SHA1 SHA512 SSDEEP

                    Chick

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Chick
                    • Size 16KB
                    • SHA256 ccc0766f19b6ce8ee75fec9edc81e6b29bc602bb27a0fb04ceadac037edcfec6
                    • MD5 SHA1 SHA512 SSDEEP

                    Crest

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Crest
                    • Size 32KB
                    • SHA256 786b96018a4c77eabf39faa5b3e4c653e2f923538f26950893369326b2b9f398
                    • MD5 SHA1 SHA512 SSDEEP

                    Deutschland

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Deutschland
                    • Size 32KB
                    • SHA256 a26460385eae137dde4e72fdb3ee8745d8c5db4f0eb954524d31d2f77d1da9d8
                    • MD5 SHA1 SHA512 SSDEEP

                    Grid

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Grid
                    • Size 60KB
                    • SHA256 8a2b9a3346bed5c2329655b0c21b0b1f2ceada2f5b503bda377180c0c95cef59
                    • MD5 SHA1 SHA512 SSDEEP

                    Guam

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Guam
                    • Size 47KB
                    • SHA256 4ce56278f0e590f40d772998df6ca34e340d7d99a4ace693a74862fd706ebcde
                    • MD5 SHA1 SHA512 SSDEEP

                    Hiking

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Hiking
                    • Size 28KB
                    • SHA256 a0ae07c41a8ef9b3940ee6f35451e59424c969022484adbe8522479124eceae4
                    • MD5 SHA1 SHA512 SSDEEP

                    Indicate

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Indicate
                    • Size 102KB
                    • SHA256 df4c30efa3b22c1e952fb966e62877c96069d732635fffb29c72e9f773e8f78c
                    • MD5 SHA1 SHA512 SSDEEP

                    Indicated

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Indicated
                    • Size 54KB
                    • SHA256 0da03c6f9c02dc1309f204ec423b95111372bcc423a6506ff4eb4b5536a482dc
                    • MD5 SHA1 SHA512 SSDEEP

                    Instructors

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Instructors
                    • Size 15KB
                    • SHA256 6a86fc5e78d6b47995056ed6a295d8adfec0af2007ea4fd82397fb4d1051114a
                    • MD5 SHA1 SHA512 SSDEEP

                    Lady

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Lady
                    • Size 32KB
                    • SHA256 a6672c42e9201f805cd20324241082a62bfb85368f8bfde3f34a5df7b6fcdb95
                    • MD5 SHA1 SHA512 SSDEEP

                    Lakes

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Lakes
                    • Size 42KB
                    • SHA256 6db7e09aa0aace6a70b9166d46021ed784c3c07726e568ff5ba27c2900902141
                    • MD5 SHA1 SHA512 SSDEEP

                    Ld

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Ld
                    • Size 63KB
                    • SHA256 11074c1c02cb2b5a3ae52244d08ee4f52b534e73ad001b40163fc182ba1e6b32
                    • MD5 SHA1 SHA512 SSDEEP

                    Legal

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Legal
                    • Size 27KB
                    • SHA256 8b1738ead4d4580a0bc44d7a216d6d0b74eddb3acf71cd03df177525388e7172
                    • MD5 SHA1 SHA512 SSDEEP

                    Lyrics

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Lyrics
                    • Size 9KB
                    • SHA256 96789539f41fba884e952df0de680c2d55ef4d743a77d882ade6d44968920b49
                    • MD5 SHA1 SHA512 SSDEEP

                    Nec

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Nec
                    • Size 18KB
                    • SHA256 1752f8c56989e75b427dcad9c3ddf13343559278d11ac5cb4e78f42a16d926fd
                    • MD5 SHA1 SHA512 SSDEEP

                    Newsletter

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Newsletter
                    • Size 37KB
                    • SHA256 684a977449500f0056448f0cb0dcf062ec86d34f5bd1b71c4681ed7df54d648b
                    • MD5 SHA1 SHA512 SSDEEP

                    Norfolk

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Norfolk
                    • Size 16KB
                    • SHA256 4f8ca259fdde8fd970417f0bda1159a86e9e0c49167b3741f3d9a3fb559fa76c
                    • MD5 SHA1 SHA512 SSDEEP

                    Or

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Or
                    • Size 51KB
                    • SHA256 45b89bb30921d39e06999b52de09ba8029724ce1c36c0dde49e31df3e5fadf9c
                    • MD5 SHA1 SHA512 SSDEEP

                    Respiratory

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Respiratory
                    • Size 8KB
                    • SHA256 41ec065edf4a2a4ce3bd8e559d0d04e985f57b9a4fff2979577c341d393ca5bc
                    • MD5 SHA1 SHA512 SSDEEP

                    Surname

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Surname
                    • Size 31KB
                    • SHA256 d2f43f1d2ca0937da2373f072e49f9f90c63bcfc4ac2d9d699debd24ff50d5ce
                    • MD5 SHA1 SHA512 SSDEEP

                    Vt

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Vt
                    • Size 69KB
                    • SHA256 3b3dbad5a7421436cd1b427514f635e8bf019de84216ad0ce0e0908608e0d1de
                    • MD5 SHA1 SHA512 SSDEEP

                    Zen

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Zen
                    • Size 19KB
                    • SHA256 6398399154920a6da911352bb04ca7a6a549d124cfed3e3bf31a75d1972b173f
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/2332-84-0x0000000000400000-0x000000000040B000-memory.dmp

                    memory/2332-85-0x0000000000400000-0x000000000040B000-memory.dmp