Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec9600d87c5eaa7…

MALICIOUS

PDF

33.4 KB Created: 2021-04-03 19:39:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 32e52bb361341bd27d292c3528c21ea6 SHA-1: 98d919150332f2e8021397ad1f187f5119d9dca9 SHA-256: 7ec9600d87c5eaa7277db8b6ab23fd97a535c191ffdec406e3b385af84672509
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of links related to 'free Robux' and 'Roblox hacks', indicating a scam or phishing attempt. The heuristic firings confirm this is a link farm designed to lure users to potentially malicious websites. The presence of a 'download button' lure further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9723

Heuristics 5

  • PDF carries distributed game-hack scam link farm critical PDF_GAME_HACK_SEO_LINK_FARM
    PDF contains a free-generator/game-hack lure together with many external PDF links spread across distinct hosts whose filenames advertise game hacks, cheats, jailbreaks, generators, or free currency. This is a high-confidence scam/SEO-poisoning carrier: the PDF exists to route users into malicious or unwanted download/redirect chains, not to present normal document content.
  • PDF carries game-hack generator link farm medium PDF_GAME_HACK_LINK_FARM
    PDF contains a gaminggenerator.org app lure together with multiple external PDF links whose filenames advertise game hacks, cheats, jailbreaks, or generators. This is a lure/delivery link farm rather than a PDF exploit: the risk is the linked redirection chain.
  • 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://gaminggenerator.org/app/431946152/how-to-get-free-robux-without-credit-card PDF link annotation
    • http://www.kalaaliaraq.dk/images/roblox-games-that-actually-give-you-free-robux.pdf%0AIn PDF document text
    • http://energotestcontrol.ru/images/free-robux-no-verification-no-survey.pdf%0AIn PDF document text
    • http://www.visiblefilm.com/images/roblox-rocitizens-free-money-codes.pdf%0AIn PDF document text
    • https://www.dierenartsberghman.be/images/xyrex-roblox-hack.pdf%0AIn PDF document text
    • http://echosvoix.ch/images/free-robux-generator-without-human-verification-2021.pdf%0AIn PDF document text
    • https://pa-waingapu.go.id/images/how-to-hack-any-roblox-account-2021.pdf%0AIn PDF document text
    • http://www.remiauclair.fr/images/banning-hacks-for-khols-admin-house-roblox.pdf%0AIn PDF document text
    • http://domaizdereva24.ru/images/free-abandoned-roblox-accounts.pdf%0AIn PDF document text
    • http://kids-academy.pl/images/roblox-pants-free.pdf%0AIn PDF document text
    • http://www.zdravazena.sk/images/roblox-booga-booga-cheat-duplicate-items.pdf%0AIn PDF document text
    • http://sscclc.edu.ec/images/robux-hack-no-human-verification-no-download.pdf%0AIn PDF document text
    • https://www.seeingindependence.org/images/how-to-hack-roblox-counter-strike.pdf%0AIn PDF document text
    • http://www.fluidtech.hu/images/account-hacking-software-roblox.pdf%0AIn PDF document text
    • https://esl.ipb.ac.id/images/hack-roblox-hack-robux.pdf%0AIn PDF document text
    • http://kids-academy.pl/images/make-roblox-t-shirts-free.pdf%0AIn PDF document text
    • https://www.coriglianocalabro.it/images/best-free-things-in-roblox-catalog-2021.pdf%0AIn PDF document text
    • http://www.exikom.com.ua/images/free-roblox-codes-june-2021.pdf%0AIn PDF document text
    • https://www.beaufortcollege.ie/images/fill-in-form-for-free-robux.pdf%0AIn PDF document text
    • http://www.web.stc-part.co.th/images/websites-to-get-free-robux.pdf%0AIn PDF document text
    • https://www.cnte.org.br/images/promo-codes-hack-on-roblox-gives-free-robux-2021.pdf%0AIn PDF document text
    • http://stackideas.com/images/babe-free-robux-games-on-roblox.pdf%0AIn PDF document text
    • http://pa-tanjungselor.go.id/images/free-robux-discord-ggroups.pdf%0AIn PDF document text
    • https://www.sitiwebjoomla.it/images/in-roblox-free-robux.pdf%0AIn PDF document text
    • https://socialvalue.gr/images/how-to-get-free-202100-robux.pdf%0AIn PDF document text
    • http://www.jureclomas.com.ar/images/all-mobile-roblox-hacks.pdf%0AIn PDF document text
    • http://www.fanciullovito.it/images/roblox-cheat-engine-retail-tycoon-hack.pdf%0AIn PDF document text
    • https://www.foodsafety.cz/images/earn-robux-free-surveys.pdf%0AIn PDF document text
    • https://verdensbarn.no/images/wwwcheatsgurucom-pc-roblox-cheats-codes.pdf%0AIn PDF document text
    • http://portal.crfsp.org.br/images/roblox-free-catalog-items-with-tix.pdf%0AIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-its-free-music-id.pdf%0AIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_002_off0000342f.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000342f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x342F 19900 bytes
SHA-256: 0f80cd1c78b20d2d522a7efc4a8133523956e8fe0684e5255cc34eba42fbca6a
font_01_sfnt_off00005ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA1 18400 bytes
SHA-256: 2fe59901b029fd0fad2b57164cb2732cf64ad030b8234dbd6278124a00e8448a