Malicious PDF — malware analysis report

Static analysis result for SHA-256 19600a5418716881…

MALICIOUS

PDF

43.8 KB Created: 2021-05-12 05:35:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b9ec850e96e127301036563dd14653fb SHA-1: e45a3840c5cadf00a2ed5e64970fe3abfc9966ba SHA-256: 19600a5418716881f7ded91d8da14f24d277fd104746824fb5e08598d72eab82
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-priority heuristic indicating it links to a 'free generator / game hack' redirector. The document body and embedded URLs reinforce this, pointing to a URL designed to lure users with promises of free game items. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/479516143/minecraft-free-download-pc-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://www.freenom.comHeyIn 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_003_off00004f20.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F20 25656 bytes
SHA-256: f04b0765e32435e4a940be1f3be5ff76913932341906da1fc9127c06eddfdd1f
font_01_sfnt_off000088ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AC 18444 bytes
SHA-256: 064b6ae6fa3971595f13ccf6914158de219c664ec1a7cfca763d46b46d8283c4

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