Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea44b8831cffd27…

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 11:55:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 04e47542dfa0031290f315398ea3a26b SHA-1: 9d2def9ce6152e417f2e592712c0798d23225a85 SHA-256: 3ea44b8831cffd270b19586feda6284791f71a747562d4192628815d937c1a31
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-free-spain-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-to-make-a-cool-free-roblox-acount_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ben-10-universal-showdown-cheats-for-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-hack-proven_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-tickets-copypasta_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-god-mode-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-games-online_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-bunny-ears-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ninja-animation-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-games-for-free-please_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-steal-hack-anyones-roblox-account_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-in-cheat-ingine-work-in-pizza-place_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f9d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F9D 22404 bytes
SHA-256: 151fae372ec5a82b3ce3bf1256dc53a4f0b8b805cb9989f90b477319ddc338a0
font_01_sfnt_off00006181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6181 18176 bytes
SHA-256: c90cd52c690b3b1dd04b69356ad4f8db221968fb130a3d2ff71dcd50323a1a90

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