PDF malware analysis — malicious · d5aff51d2bd19de7

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 10:01:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3becc3300f75e08ada49feb750fe9b8e SHA-1: 91e3e79593c0d575f010ce7ff152f15d6ecdc8ce SHA-256: d5aff51d2bd19de7e5d64ee5f12b198176ed29b57bdfa7f917e52010dd118716

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.tw/app/479516143/free-minecraft-alt-generator-game-hack PDF link annotation
- https://kitchenset-jogja.com/ckfinder/userfiles/files/hack-mod-of-roblox_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/google-roblox-games_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/cheat-in-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-get-a-free-gear-in-roblox_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-get-free-robux-in-roblox-without-builders-club_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/free-roblox-gift-card-codes-no-human-verification_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/hack-fly-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://kitchenset-jogja.com/ckfinder/userfiles/files/free-roblox-royale-high-outfits_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_off0000313c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x313C	21820 bytes
SHA-256: `bf8927290fd9c8cf0e61a4e81ba064fc290d4dfa57e3fd293fe2ace1d44bb910`
`font_01_sfnt_off0000614a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x614A	18072 bytes
SHA-256: `c8f7285ff86763399e2a5ac55585dfb2fc2dace9f282f455ab031e88ea571d9c`

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