Malicious PDF — malware analysis report

Static analysis result for SHA-256 1851abc43ca1291a…

MALICIOUS

PDF

49.2 KB Created: 2021-06-09 07:16:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a4a603fcdfa5c6732e7fc1402cfe49ab SHA-1: e32d75453babcd6245c35f2cab3bd69b7c4b2c05 SHA-256: 1851abc43ca1291a3265c2237e94b492956514ab79e5efe6018d1ec98ce97b42
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 0.9796

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 https://netcdn.tw/app/431946152/cheat-engine-admin-hack-roblox-game-hack PDF link annotation
    • https://digilib.stikesindramayu.ac.id/repository/easy-points-gg_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/all-mobile-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/pubg-300-uc-price-in-india_GM1330123889.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-redeem-code-genartor-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-generator-hack-club_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-hack-btools-download_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/comapp-trekfree-coin-spindaily-link-master_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005387.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5387 25664 bytes
SHA-256: 481399c62115b42abc0a9e426334c63ba7afc91a4d1bcaa181032671212e542b
font_01_sfnt_off00008e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E32 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00009ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADA 19296 bytes
SHA-256: 23024c119efdaa690c0c257bba23a773172b854335c5a6ed50d52f100c1ed5dc

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