PDF malware analysis — malicious · 2bdd7aea9302fb9f

MALICIOUS

PDF

46.9 KB Created: 2021-06-09 00:18:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 886d2da34817f201ef222374e2e070fb SHA-1: c519d2e56d441cd1f78f2e4bd5574d5e87bfd002 SHA-256: 2bdd7aea9302fb9f5d5e40059956cade273f3889b243372bd735f06592c7aa3e

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 0.9832

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.tw/app/431946152/can-you-generate-robux-for-free-game-hack PDF link annotation
- https://lesegais.ru/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/flip-master-free-coins_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/robux-no-survey_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/hack-roblox-players_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/minecraft-java-hacks_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/coins-master-hacks_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/114-hacks_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/new-hack-roblox_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/free-robux-without-human-verification_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
`stream_004_off00004eba.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4EBA	30172 bytes
SHA-256: `12b0e3a2958579b55a8920addb2db6425108e7f33bd65098849b3c900f5eda52`
`font_01_sfnt_off00009462.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9462	18508 bytes
SHA-256: `21f29236083aa3d0cfa8df0571079969a3d1f7c167f462e3a8a73c98dbb67c5f`

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