Malicious PDF — malware analysis report

Static analysis result for SHA-256 b78af6d6a04f60e3…

MALICIOUS

PDF

57.5 KB Created: 2021-04-06 06:08:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5f3b0c77d2d11b54ed17eb3c70d88b6d SHA-1: 8ea1d044d9a5d2121a030b47fff898e2504cb5ec SHA-256: b78af6d6a04f60e3c7d6eb8c4cb02f8d00755e132f6651c34cba810757af0cf2
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing and an urgency-based 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 0.7795

Heuristics 6

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://enigmagenerator.com/app/431946152/roblox-game-hack.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://enigmagenerator.com/app/431946152/roblox-game-hack PDF link annotation
    • http://ivanitskyvs.ru/images/unlimited-roblox-hack-script.pdfIn PDF document text
    • http://fiur-malermeister.de/images/code-roblox-saber-simulator-free-pet.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/roblox-free-avatar-stuff.pdfIn PDF document text
    • http://salantiskis.lt/images/best-roblox-games-to-hack-on.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/can-you-ever-get-free-robux.pdfIn PDF document text
    • http://finettifrs.it/images/como-descargarse-hacks-en-roblox-jailbreak.pdfIn PDF document text
    • https://www.lavigny.ch/images/best-games-in-roblox-to-hack.pdfIn PDF document text
    • https://enpav.it/images/roblox-hacks-phantom-forces-old.pdfIn PDF document text
    • http://cadcam.no/images/free-house-roblox.pdfIn PDF document text
    • http://legs11.co.za/images/how-to-hack-into-someones-account-on-roblox.pdfIn PDF document text
    • http://lechia-sedziszow.pl/images/download-rc7-roblox-hack.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/comment-hacker-une-page-roblox.pdfIn PDF document text
    • http://www.fluidtech.hu/images/1m-stepford-county-railway-roblox-script-hacks.pdfIn PDF document text
    • https://www.linzgau-kjh.de/images/robux-and-tix-hack-2021.pdfIn PDF document text
    • https://pneukalousek.cz/images/roblox-natural-disaster-fly-hack.pdfIn PDF document text
    • http://musical-arts.de/images/are-there-secret-ways-to-get-free-robux.pdfIn PDF document text
    • https://www.archimadrid.org/images/free-robux-generator-2021-download.pdfIn PDF document text
    • https://verdensbarn.no/images/dragon-ball-x-roblox-hack.pdfIn PDF document text
    • http://jenne-technik.de/images/roblox-bleach-primera-hack.pdfIn PDF document text
    • http://j-cook.pro/images/roblox-jump-hack-check-cashed.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/giving-away-free-robux-cards-live.pdfIn PDF document text
    • http://techmobil.pl/images/cheater-cheater-best-friend-eater-roblox-song-cide.pdfIn PDF document text
    • http://www.lionel-seppoloni.fr/images/roblox-hack-account-bugmenot-wiki.pdfIn PDF document text
    • http://jugendfeuerwehr-scheinfeld.de/images/hacking-game-roblox.pdfIn PDF document text
    • http://evro-okna.net/images/how-to-hack-roblox-accounts-on-ipad-2021.pdfIn PDF document text
    • https://pemadamapi.net/images/roblox-the-conquerors-3-money-hack.pdfIn PDF document text
    • http://adues.org/images/free-robux-promise.pdfIn PDF document text
    • http://baah.ca/images/how-to-hack-money-in-heists-simulator-roblox.pdfIn PDF document text
    • https://www.hofe-gmbh.de/images/roblox-aerial-free.pdfIn PDF document text
    • http://korporacjaroma.pl/images/how-to-get-free-group-funds-on-roblox.pdfIn PDF document text
    • http://jugendfeuerwehr-scheinfeld.de/images/roblox-windows-download-free.pdfIn PDF document text
    • http://petarda.hu/images/adidas-roblox-shirt-free-design-high-resoulution.pdfIn PDF document text
    • http://homequeen.de/images/hackear-cuenta-de-roblox-2021-pastebin.pdfIn PDF document text
    • https://bdsm-centrum.com/images/free-robux-no-test-or-dowmload.pdfIn PDF document text
    • http://pandaplast.com/images/free-robux-hacks-may-2021.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-robux-no-human-verification-or-survey-2021.pdfIn PDF document text
    • http://bwharrisalumniusa.org/images/robux-generator-hack-tool.pdfIn PDF document text
    • http://finalstand.org/images/free-robux-easy-way-2021.pdfIn PDF document text
    • http://uptodate.az/images/best-parkour-free-run-roblox.pdfIn PDF document text
    • http://consultinggirona.es/images/ho-wto-get-robux-no-hack-or-anythong-free.pdfIn PDF document text
    • http://kita-sunshine.de/images/https-pastebin-com-roblox-hack.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-to-get-the-zombie-animashon-for-free-in-roblox.pdfIn PDF document text
    • http://domaizdereva24.ru/images/code-for-adopt-me-roblox-for-free-money.pdfIn PDF document text
    • http://jobsy.com.sg/images/free-robux-no-human-verification-no-inspect-no-password.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/roblox-com-free-download.pdfIn PDF document text
    • http://www.anies.eu/images/how-to-get-roblox-20-package-for-free.pdfIn PDF document text
    • http://awakeningtruth.org/images/free-robux-pastebin-link.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-free-draw-alpha-2-discord.pdfIn PDF document text
    • https://www.fenews.co.uk/images/hacker-roblox-bob-esponja.pdfIn PDF document text
    +15 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000080d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x80D6 26476 bytes
SHA-256: 0e0f715983b7cdeb0384ccac00329893dcb03c8cc9fd4c122fb68b49cb29ef17
font_01_sfnt_off0000be43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE43 18000 bytes
SHA-256: 01a1def3112aaa9a3b39378b54b1e90e2b20935c28351239e633652d8763b5ce