Malicious PDF — malware analysis report

Static analysis result for SHA-256 f016afd45d24efb8…

MALICIOUS

PDF

35.3 KB Created: 2021-07-06 22:16:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8196f4eb792c820407ada65ee856f7c1 SHA-1: 18675d34fdd9a88adc82bdb2d6ac0b10ef19fd6b SHA-256: f016afd45d24efb8f094c51937e9425a35215f4019d0d58942322093fd805e09
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link and text related to 'free Robux' and 'game hacks', which is a common lure for phishing and scam websites. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this, and the ML classifier strongly indicates maliciousness. The embedded URLs likely lead to sites designed to trick users into providing personal information or downloading further malicious content.

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/431946152/how-to-get-free-robux-by-playing-games-game-hack PDF link annotation
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/coin-master-free-spin-app-reviews_GM406889139.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/how-to-make-a-shirt-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-oprewards_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/roblox-script-hack-pack_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/roblox-vehivle-simulator-speed-hack_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/download-btools-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/how-to-install-anti-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/robux-hack-us_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/how-to-hack-the-underground-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/skype-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.payaljewelleryfiji.com/uploaded_files/userfiles/files/free-robux-no-verification-2021_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
font_00_sfnt_off000030dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DC 22420 bytes
SHA-256: 0ab0a5f37ecb9777a1eeb33d87a362f9f921f783cc09cf3813f173d85ee31384
font_01_sfnt_off000062e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E6 19772 bytes
SHA-256: 9e977a5575cc9b35e2b14531736cd30bfd9bd13fa3776d4baf53e95f9fc8fb94

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