PDF malware analysis — malicious · 786be5afcc15339b

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 03:08:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: fe2115ca1d0ac808b9d598035b772297 SHA-1: b0d96fc505cd70abae67c0f7593ba1e433def0b0 SHA-256: 786be5afcc15339bfa85e46654ec14285317deb45bc95468380b3c1e8523f74f

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive 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 0.9971

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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.xyz/app/479516143/minecraft-windows-10-key-free-game-hack PDF link annotation
- http://www.homesweethome.pl/images/www-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-extra-spins_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/cm-spin-link_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coins-master-hack_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/hack-master-coin-pc_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/www-rbxhut-com_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_003_off00004bc3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BC3	24840 bytes
SHA-256: `3cbf50e989ce72a0e3910508f50dd946e907c72d497b7c275c1bf0fd271c36c0`
`font_01_sfnt_off00008399.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8399	18704 bytes
SHA-256: `a36dfd25d96361324b643dcf25d0bbe587ae4faa1fc7994e7ccdab15621c1fe2`

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