PDF malware analysis — malicious · bad4c17a31591782

MALICIOUS

PDF

35.1 KB Created: 2021-06-22 03:14:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 3727a8d32a6f5f6c2f8223245b408114 SHA-1: 7cf743985f312f2fdb2ea6b10cc72e939472c15d SHA-256: bad4c17a3159178276587272928964236cc74fcfb07db2730d635b3ca44e6674

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. 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 5

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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.co/app/431946152/adopt-me-roblox-hacks-game-hack PDF link annotation
- http://www.homesweethome.pl/images/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-hackear-ordenadores_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/4jcom-free-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/i-got-free-robux-doing-this_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/whats-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-hack-roblox-on-ipad-2021_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-wizard-tycoon-2-player-hack_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/get-free-robux-without-human-verify_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/comandos-hack-para-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/cheat-roblox-lumber-tycoon-2-uang_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
- https://www.roblox.com/.IIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003170.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3170	22308 bytes
SHA-256: `1bd802f63d4a8a354ae9b768d60b9d2b1264a825fa05fb25450fef0f4e0c7730`
`font_01_sfnt_off00006315.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6315	19308 bytes
SHA-256: `22934774863ac3be514f624650c183b4034f40a3033292b7237229c7ea0ab873`

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