Resubmissions

01-02-2025 10:25

250201-mf4saszmgl 10

01-02-2025 10:23

250201-metkyaxqdt 10

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2024 11:47

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:1440
    • 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:1704
      • 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 use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3236
        • 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\luxedrav.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2296
          • 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\RESEC45.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCEC35.tmp"
            5⤵
              PID:1612
      • 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:4340
      • 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:2208
        • 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:868
          • 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:1376
      • 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:3552
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:4752
      • 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:3928
        • 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:3440

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\ucp\usc.exe

      Filesize

      4.0MB

      MD5

      b100b373d645bf59b0487dbbda6c426d

      SHA1

      44a4ad2913f5f35408b8c16459dcce3f101bdcc7

      SHA256

      84d7fd0a93d963e9808212917f79fe2d485bb7fbc94ee374a141bbd15da725b7

      SHA512

      69483fed79f33da065b1cc65a2576ba268c78990545070f6f76fca8f48aaec8274faecdc9bcf92bf84a87809a318b159d1a3c835f848a6eea6c163f41612bf9b

    • C:\Users\Admin\AppData\Local\Temp\RESEC45.tmp

      Filesize

      1KB

      MD5

      3297daa79fc486f368fb89912a1e86f5

      SHA1

      66a00e3171ed65d26a05a27e7aa34550687003e6

      SHA256

      699a778cb099e0231a9542a2378aa8f319d59568054dcaf2c56f539df5631fec

      SHA512

      cec993e2313488b73696bb20eb26e4e3b0b79a2e291726a729162e7f24bad3985a2aa4c0a60c59be1681bfc0388b8d38fc24b73cda810ba73556c5a3698e7b51

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mplzpawn.nuu.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\luxedrav.dll

      Filesize

      5KB

      MD5

      b76f2eb770519b2b1c90d3b3c768a678

      SHA1

      0f54359c2f074040a280d29c42007ebb6a0d8962

      SHA256

      ed11144e23975ec9041502332ae856d407cfde169620cbd40f8ae787c0fff61a

      SHA512

      1c1f80d4d794dd7df099f3af1bd2db1387786bee7f44b8ef7ef42c10ba5c7e98465aebd135a1320ae53c0bc5b06eb28c6de344c00c2682f81c34cc3717cdbf43

    • C:\Users\Admin\AppData\Local\Temp\luxedrav.pdb

      Filesize

      7KB

      MD5

      81697e3e698ceac6cce9bf36999019b6

      SHA1

      010e61ad4d5f0ab24eafb3441ec4904dc9d58bc2

      SHA256

      5f91f712426fe592d4e3155fb8dc04057da3a0726ea7f535b44b758aa951fdc1

      SHA512

      ad2221f99054003fe3f0774e0bfee3f6c1a400fdec38a34cd7b357b6a5cc14b624f98164d2da862bfde07f75a8f106393cbc56bd7c581cfe1bae2fc995771324

    • 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\CSCEC35.tmp

      Filesize

      652B

      MD5

      131813a4fe5b9b26b1e3f1aff6e92266

      SHA1

      61319d8be507b5d4049c8015a66fe8ede9ee1504

      SHA256

      2edfe781d37ef0fc39fe746e9a2aed716782ac3e5f35af49be1a135286e604ff

      SHA512

      bb6dff7aaa01400101622c15360405840acc3b60add495e7d74d83915f5b366c78c6048e790820a91adb5369f909543aae143cc391daf105d7580950a058654e

    • \??\c:\Users\Admin\AppData\Local\Temp\luxedrav.0.cs

      Filesize

      4KB

      MD5

      a0d1b6f34f315b4d81d384b8ebcdeaa5

      SHA1

      794c1ff4f2a28e0c631a783846ecfffdd4c7ae09

      SHA256

      0b3a3f8f11eb6f50fe67943f2b73c5824614f31c2e0352cc234927d7cb1a52e0

      SHA512

      0a89293d731c5bca05e73148f85a740b324fc877f2fb05cde1f68e2098329fbca552d78249a46f4a1da15a450c8e754c73be20c652f7089d5cfec445ce950a0e

    • \??\c:\Users\Admin\AppData\Local\Temp\luxedrav.cmdline

      Filesize

      309B

      MD5

      eada88fecaa89339e2798d661fd86374

      SHA1

      96d3757f11c6e0e8dc97aacdb71c1e1a541e027a

      SHA256

      fe1af86aee5498b90fb5f7c9980f109866e5c51fb02bf425977f0ba25820c59f

      SHA512

      27e3024098f0596272e0a46d3250a2cdf741b8562ed3492ada99aad0402175f2831e1e78ae6310b5ea34acf4ef177b5bfce92149332f2b611949830a5199e473

    • memory/1704-55-0x0000000000400000-0x000000000047B000-memory.dmp

      Filesize

      492KB

    • memory/3236-74-0x0000000001200000-0x0000000001208000-memory.dmp

      Filesize

      32KB

    • memory/3236-60-0x0000000001030000-0x0000000001038000-memory.dmp

      Filesize

      32KB

    • memory/3236-59-0x000000001C090000-0x000000001C12C000-memory.dmp

      Filesize

      624KB

    • memory/3236-58-0x000000001BBC0000-0x000000001C08E000-memory.dmp

      Filesize

      4.8MB

    • memory/3440-99-0x00000000056D0000-0x0000000005CF8000-memory.dmp

      Filesize

      6.2MB

    • memory/3440-112-0x0000000006050000-0x00000000063A4000-memory.dmp

      Filesize

      3.3MB

    • memory/3440-119-0x0000000007870000-0x000000000788A000-memory.dmp

      Filesize

      104KB

    • memory/3440-118-0x0000000007ED0000-0x000000000854A000-memory.dmp

      Filesize

      6.5MB

    • memory/3440-117-0x00000000077D0000-0x0000000007846000-memory.dmp

      Filesize

      472KB

    • memory/3440-115-0x0000000007640000-0x0000000007684000-memory.dmp

      Filesize

      272KB

    • memory/3440-114-0x0000000006510000-0x000000000655C000-memory.dmp

      Filesize

      304KB

    • memory/3440-113-0x00000000064D0000-0x00000000064EE000-memory.dmp

      Filesize

      120KB

    • memory/3440-102-0x0000000005E60000-0x0000000005EC6000-memory.dmp

      Filesize

      408KB

    • memory/3440-101-0x0000000005DF0000-0x0000000005E56000-memory.dmp

      Filesize

      408KB

    • memory/3440-100-0x0000000005610000-0x0000000005632000-memory.dmp

      Filesize

      136KB

    • memory/3440-98-0x0000000002BA0000-0x0000000002BD6000-memory.dmp

      Filesize

      216KB

    • memory/3552-21-0x0000000000110000-0x000000000011A000-memory.dmp

      Filesize

      40KB

    • memory/3552-79-0x0000000000110000-0x000000000011A000-memory.dmp

      Filesize

      40KB

    • memory/3552-22-0x0000000000110000-0x000000000011A000-memory.dmp

      Filesize

      40KB

    • memory/3552-92-0x0000000000110000-0x000000000011A000-memory.dmp

      Filesize

      40KB

    • memory/3552-17-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/3552-94-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/3928-97-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3928-78-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4340-18-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/4752-91-0x0000000000810000-0x000000000081A000-memory.dmp

      Filesize

      40KB

    • memory/4752-82-0x0000000000810000-0x000000000081A000-memory.dmp

      Filesize

      40KB

    • memory/4752-81-0x0000000000D20000-0x0000000001153000-memory.dmp

      Filesize

      4.2MB

    • memory/4752-80-0x0000000000D20000-0x0000000001153000-memory.dmp

      Filesize

      4.2MB

    • memory/4752-89-0x0000000000810000-0x000000000081A000-memory.dmp

      Filesize

      40KB