Resubmissions

16/04/2025, 11:04

250416-m58gsaz1ay 10

15/04/2025, 17:34

250415-v5ylksypw9 10

15/04/2025, 06:16

250415-g1p7ras1dw 10

14/04/2025, 08:06

250414-jzpwpstxhx 10

14/04/2025, 07:59

250414-jvg1assky4 10

14/04/2025, 07:22

250414-h7g1dss1h1 10

14/04/2025, 07:16

250414-h3xv2s1nv6 10

11/04/2025, 21:39

250411-1h113szzaz 10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250410-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250410-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    14/04/2025, 07:59

General

  • Target

    HYDRA.exe

  • Size

    2.6MB

  • MD5

    c52bc39684c52886712971a92f339b23

  • SHA1

    c5cb39850affb7ed322bfb0a4900e17c54f95a11

  • SHA256

    f8c17cb375e8ccad5b0e33dae65694a1bd628f91cac6cf65dd11f50e91130c2d

  • SHA512

    2d50c1aa6ca237b9dbe97f000a082a223618f2164c8ab42ace9f4e142c318b2fc53e91a476dbe9c2dd459942b61507df5c551bd5c692a2b2a2037e4f6bd2a12b

  • SSDEEP

    49152:HnUXzRe4cjAx+L/G/3JHQZutOnmSzZniyui0EJHezdcc/DK9kTO1S:HUD8djA0LOvJdtOmSlniyuiPFePmS61S

Malware Config

Extracted

Family

smokeloader

Version

2017

C2

http://92.53.105.14/

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Smokeloader family
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HYDRA.exe
    "C:\Users\Admin\AppData\Local\Temp\HYDRA.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5316
    • C:\Users\Admin\AppData\Roaming\yaya.exe
      C:\Users\Admin\AppData\Roaming\yaya.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4564
      • C:\Windows\Temp\{1945BBS40-8571-3DA1-BB29-HYDRA7A13A1E}\starter.exe
        "C:\Windows\Temp\{1945BBS40-8571-3DA1-BB29-HYDRA7A13A1E}\starter.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4848
        • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\e0h-jkft.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2248
          • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES9914.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC9913.tmp"
            5⤵
              PID:5308
      • C:\Users\Admin\AppData\Roaming\va.exe
        C:\Users\Admin\AppData\Roaming\va.exe
        2⤵
        • Drops startup file
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5592
      • C:\Users\Admin\AppData\Roaming\ufx.exe
        C:\Users\Admin\AppData\Roaming\ufx.exe
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5176
        • C:\ProgramData\ucp\usc.exe
          "C:\ProgramData\ucp\usc.exe" /ucp/usc.exe
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4948
          • C:\Windows\SysWOW64\SCHTASKS.exe
            SCHTASKS /Create /SC MINUTE /MO 10 /F /TN SystemOptimize /TR C:\ProgramData\ucp\usc.exe
            4⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:4756
      • C:\Users\Admin\AppData\Roaming\sant.exe
        C:\Users\Admin\AppData\Roaming\sant.exe
        2⤵
        • Executes dropped EXE
        • Maps connected drives based on registry
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1800
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:3484
      • C:\Users\Admin\AppData\Roaming\power.exe
        C:\Users\Admin\AppData\Roaming\power.exe
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1108
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2432
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\chsegatd\scbcwsss.exe
      1⤵
        PID:3376

      Network

      MITRE ATT&CK Enterprise v16

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\ucp\usc.exe

        Filesize

        4.0MB

        MD5

        b100b373d645bf59b0487dbbda6c426d

        SHA1

        44a4ad2913f5f35408b8c16459dcce3f101bdcc7

        SHA256

        84d7fd0a93d963e9808212917f79fe2d485bb7fbc94ee374a141bbd15da725b7

        SHA512

        69483fed79f33da065b1cc65a2576ba268c78990545070f6f76fca8f48aaec8274faecdc9bcf92bf84a87809a318b159d1a3c835f848a6eea6c163f41612bf9b

      • C:\Users\Admin\AppData\Local\Temp\RES9914.tmp

        Filesize

        1KB

        MD5

        c501ddbbfe9e3d87cf86791af4daefa9

        SHA1

        fcb1d8ae65330fada954e8c65d30a4f9fc4d0ab7

        SHA256

        9cae39e79948fa82a2a89a1ce96b9e4194ff16554b4aa9d9d992e7dfddc3067c

        SHA512

        acff2c1895655bf62fd26b4687293f407cd0e4e8a95ac8a347af84f92555dd9db498b11495c3c2e825f87bec9c012b213d69c218ae3ed10f88588f9f148930c5

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lh3bhofu.bxr.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\e0h-jkft.dll

        Filesize

        5KB

        MD5

        12b59fbc3cfadcbde15d5a42da4d227d

        SHA1

        9452b0551c7b32e549daead530454f8c4bd9f88b

        SHA256

        47ebf2d99be1e7b20e114f844d355d5a189c7a4b46de3b288b060a436214fef9

        SHA512

        9749163ef5b0af3a61b2c0450346ac3b8109c03c3c59d67f3f95d0bb54781c68afd376eb91760deaba0db677be2ee186c8699a40576c8b89975d9eeffb73d49b

      • C:\Users\Admin\AppData\Local\Temp\e0h-jkft.pdb

        Filesize

        7KB

        MD5

        5ceac3238b3c23d0bb33091b5bd5a751

        SHA1

        e1d0f5f4b4ee4c60a08ae1ace4e11c619aca28b4

        SHA256

        71e1d43518c03283e0f0916651e883af0824ad84321c68bbce7d33b24c7c2ce1

        SHA512

        1ca0890f2f5a5e3bdb8a1ea9620611afdf75dd90097b5c29cb74e0414ccc23a6e0998cb1755bffe8a39677cdb77311320cad4c7f24063a1805723159a5340a72

      • C:\Users\Admin\AppData\Roaming\power.exe

        Filesize

        507KB

        MD5

        743f47ae7d09fce22d0a7c724461f7e3

        SHA1

        8e98dd1efb70749af72c57344aab409fb927394e

        SHA256

        1bee45423044b5a6bf0ad0dd2870117824b000784ce81c5f8a1b930bb8bc0465

        SHA512

        567993c3b798365efa07b7a46fda98494bfe540647f27654764e78b7f60f093d403b77b9abb889cfb09b44f13515ce3c041fc5db05882418313c3b3409dd77bf

      • C:\Users\Admin\AppData\Roaming\sant.exe

        Filesize

        12KB

        MD5

        5effca91c3f1e9c87d364460097f8048

        SHA1

        28387c043ab6857aaa51865346046cf5dc4c7b49

        SHA256

        3fd826fc0c032721466b94ab3ec7dcfe006cc284e16132af6b91dfbc064b0907

        SHA512

        b0dba30fde295d3f7858db9d1463239b30cd84921971032b2afb96f811a53ac12c1e6f72013d2eff397b0b89c371e7c023c951cd2102f94157cba9918cd2c3e0

      • C:\Users\Admin\AppData\Roaming\ufx.exe

        Filesize

        960KB

        MD5

        22e088012519e1013c39a3828bda7498

        SHA1

        3a8a87cce3f6aff415ee39cf21738663c0610016

        SHA256

        9e3826138bacac89845c26278f52854117db1652174c1c76dbb2bd24f00f4973

        SHA512

        5559e279dd3d72b2c9062d88e99212bbc67639fe5a42076efd24ae890cfce72cfe2235adb20bf5ed1f547b6da9e69effa4ccb80c0407b7524f134a24603ea5a8

      • C:\Users\Admin\AppData\Roaming\va.exe

        Filesize

        88KB

        MD5

        c084e736931c9e6656362b0ba971a628

        SHA1

        ef83b95fc645ad3a161a19ccef3224c72e5472bd

        SHA256

        3139bf3c4b958c3a019af512aecdb8161b9d6d7432d2c404abda3f42b63f34f1

        SHA512

        cbd6485840a117b52e24586da536cefa94ca087b41eb460d27bc2bd320217957c9e0e96b0daf74343efde2e23a5242e7a99075aabf5f9e18e03b52eb7151ae1f

      • C:\Users\Admin\AppData\Roaming\yaya.exe

        Filesize

        1.7MB

        MD5

        7d05ab95cfe93d84bc5db006c789a47f

        SHA1

        aa4aa0189140670c618348f1baad877b8eca04a4

        SHA256

        5c32e0d2a69fd77e85f2eecaabeb677b6f816de0d82bf7c29c9d124a818f424f

        SHA512

        40d1461e68994df56f19d9f7b2d96ffdc5300ca933e10dc53f7953471df8dea3aabeb178c3432c6819175475cadcbdb698384e3df57b3606c6fce3173a31fe84

      • C:\Windows\Temp\{1945BBS40-8571-3DA1-BB29-HYDRA7A13A1E}\starter.exe

        Filesize

        80KB

        MD5

        51bf85f3bf56e628b52d61614192359d

        SHA1

        c1bc90be6a4beb67fb7b195707798106114ec332

        SHA256

        990dffdc0694858514d6d7ff7fff5dc9f48fab3aa35a4d9301d94fc57e346446

        SHA512

        131173f3aabcfba484e972424c54201ec4b1facfb2df1efe08df0d43a816d4df03908b006884564c56a6245badd4f9ed442a295f1db2c0c970a8f80985d35474

      • \??\c:\Users\Admin\AppData\Local\Temp\CSC9913.tmp

        Filesize

        652B

        MD5

        ad5c1d78e38a34c0c52f985c59d761ae

        SHA1

        30c0ba00526d50fbfb7a8ab277dc5f1178a640f8

        SHA256

        7dcf09f2e0748a1294ab526d74ad7789b920d61bf02f184c6c0a44ca2e6e6b39

        SHA512

        3704b48f75813d9475955068c2794c9ff4d28ff82ec720795f029a9acdc410197208d752f38ba105d7820a71b4b0a05985457ca6374d48c395c96f04cce00e72

      • \??\c:\Users\Admin\AppData\Local\Temp\e0h-jkft.0.cs

        Filesize

        4KB

        MD5

        a0d1b6f34f315b4d81d384b8ebcdeaa5

        SHA1

        794c1ff4f2a28e0c631a783846ecfffdd4c7ae09

        SHA256

        0b3a3f8f11eb6f50fe67943f2b73c5824614f31c2e0352cc234927d7cb1a52e0

        SHA512

        0a89293d731c5bca05e73148f85a740b324fc877f2fb05cde1f68e2098329fbca552d78249a46f4a1da15a450c8e754c73be20c652f7089d5cfec445ce950a0e

      • \??\c:\Users\Admin\AppData\Local\Temp\e0h-jkft.cmdline

        Filesize

        309B

        MD5

        37753d37f5daac924fa878d8f0bde49f

        SHA1

        9278bc4a5fc393288780b9287c335859c0064430

        SHA256

        abf253cca23c41333f18addf6cf0230bb39e5588480189936bdfbca12a9668e0

        SHA512

        8b2bcb15a40c0b6274746608d9482c8ee2e626f91ddbcbbc24acaf19102d1b521b186f569c8f9befd4b24aaad150b591f504c29d5414bb68a18a1c5456ac24c2

      • memory/1108-85-0x0000000000400000-0x0000000000485000-memory.dmp

        Filesize

        532KB

      • memory/1108-100-0x0000000000400000-0x0000000000485000-memory.dmp

        Filesize

        532KB

      • memory/1800-84-0x0000000000130000-0x000000000013A000-memory.dmp

        Filesize

        40KB

      • memory/1800-94-0x0000000000130000-0x000000000013A000-memory.dmp

        Filesize

        40KB

      • memory/1800-23-0x0000000000130000-0x000000000013A000-memory.dmp

        Filesize

        40KB

      • memory/1800-20-0x0000000000400000-0x0000000000404000-memory.dmp

        Filesize

        16KB

      • memory/1800-21-0x0000000000130000-0x000000000013A000-memory.dmp

        Filesize

        40KB

      • memory/2432-103-0x0000000004D40000-0x0000000004D62000-memory.dmp

        Filesize

        136KB

      • memory/2432-115-0x0000000005850000-0x0000000005BA7000-memory.dmp

        Filesize

        3.3MB

      • memory/2432-121-0x00000000070E0000-0x00000000070FA000-memory.dmp

        Filesize

        104KB

      • memory/2432-120-0x0000000007740000-0x0000000007DBA000-memory.dmp

        Filesize

        6.5MB

      • memory/2432-119-0x0000000007040000-0x00000000070B6000-memory.dmp

        Filesize

        472KB

      • memory/2432-118-0x0000000006CA0000-0x0000000006CE4000-memory.dmp

        Filesize

        272KB

      • memory/2432-117-0x0000000005DC0000-0x0000000005E0C000-memory.dmp

        Filesize

        304KB

      • memory/2432-116-0x0000000005D00000-0x0000000005D1E000-memory.dmp

        Filesize

        120KB

      • memory/2432-104-0x0000000005670000-0x00000000056D6000-memory.dmp

        Filesize

        408KB

      • memory/2432-105-0x00000000056E0000-0x0000000005746000-memory.dmp

        Filesize

        408KB

      • memory/2432-101-0x0000000002360000-0x0000000002396000-memory.dmp

        Filesize

        216KB

      • memory/2432-102-0x0000000004F30000-0x00000000055FA000-memory.dmp

        Filesize

        6.8MB

      • memory/3484-95-0x0000000000160000-0x000000000016A000-memory.dmp

        Filesize

        40KB

      • memory/3484-97-0x0000000000160000-0x000000000016A000-memory.dmp

        Filesize

        40KB

      • memory/3484-88-0x0000000000160000-0x000000000016A000-memory.dmp

        Filesize

        40KB

      • memory/3484-87-0x00000000008A0000-0x0000000000D5F000-memory.dmp

        Filesize

        4.7MB

      • memory/3484-86-0x00000000008A0000-0x0000000000D5F000-memory.dmp

        Filesize

        4.7MB

      • memory/4564-60-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/4848-64-0x000000001C2C0000-0x000000001C78E000-memory.dmp

        Filesize

        4.8MB

      • memory/4848-80-0x0000000001810000-0x0000000001818000-memory.dmp

        Filesize

        32KB

      • memory/4848-65-0x000000001C790000-0x000000001C82C000-memory.dmp

        Filesize

        624KB

      • memory/4848-66-0x00000000017F0000-0x00000000017F8000-memory.dmp

        Filesize

        32KB

      • memory/5592-25-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB