PDF malware analysis — malicious · 92b4dd2372f44f3f

MALICIOUS

PDF

34.2 KB Created: 2021-06-26 17:11:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: ff8053a6420f0b92df095b3aca48a958 SHA-1: 253589ed832470d1d2d4a9cace9741d73534ec53 SHA-256: 92b4dd2372f44f3f429268d541acd9f03ef9733daad5aeaacbe533c7133cfc4e

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.co/app/431946152/free-robux-macbook-version-game-hack PDF link annotation
- https://jasabuatlabel.com/ckfinder/userfiles/files/how-to-get-the-fly-hack-roblox_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/cheat-arsenal-roblox_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/hack-de-roblox-fly_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/all-coin-master-spin-link-and-free-download_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/free-robux-pins_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/earn-robux-online_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/robuxian-hack-to-steal-robux_GM431946152.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/pubg-uc-hack-online_GM1330123889.pdfIn PDF document text
- https://jasabuatlabel.com/ckfinder/userfiles/files/how-to-earn-robux-no-hack_GM431946152.pdfIn 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_off00002f5b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F5B	21980 bytes
SHA-256: `f0409f69b90f3f938b19889407a19b580bd96cd3f80a6d66e325652de33e0f5f`
`font_01_sfnt_off00005fdd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FDD	19336 bytes
SHA-256: `1f8497b3635167195d7833892a3fb645ea0bd6e782dd0dc320aec87120072dd7`

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