PDF malware analysis — malicious · 84ebd89ec714027e

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 09:51:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 85ed921f1713fefeb336c49ad46f6f43 SHA-1: d0f6ceeac430f26e29261069c527cdfcc9bb3ad6 SHA-256: 84ebd89ec714027e275432624ac0e3cbd331d818199781c3af5260c4b2d08db8

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 0.9865

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.online/app/406889139/coin-master-free-coins-generator-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/freespinandcoin_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/i-want-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-images_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-com-www_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-key-free-spin_GM406889139.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
`stream_004_off0000514c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x514C	26072 bytes
SHA-256: `8e8f125be5e3f79d29af0dd7977ea02bb29240aab71f92add9432b33fe82c9cd`
`font_01_sfnt_off00008cf0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CF0	17712 bytes
SHA-256: `f6b7bbb27796bfdd91832c5c9631b2ef3c604ec4967bc220e21b541acce31e79`

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