Malicious PDF — malware analysis report

Static analysis result for SHA-256 aae8d18737af7576…

MALICIOUS

PDF

57.9 KB Created: 2021-04-05 20:49:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e8b09c4677a756c08786557685109829 SHA-1: e27e6754c5d025635fe211da51c42fac775b694c SHA-256: aae8d18737af75768bc3bb72c9dcfa58068155378567347342d59c56f2622be3
82 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'free Robux' and impersonates Facebook, directing users to a suspicious URL. The ML classifier also flagged the PDF as malicious. The presence of embedded URLs and the nature of the lure suggest an attempt to trick users into clicking malicious links, likely for credential harvesting or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7795

Heuristics 4

  • 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://gaminggenerator.org/app/431946152/get-1b--robux-free-no-hacks-roblox.
  • 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/get-1b--robux-free-no-hacks-roblox PDF link annotation
    • http://solidkom.ch/images/free-roblox-accounts-2021-with-robux-generator.pdfIn PDF document text
    • http://britishcomics.com/images/free-robux-no-password-or-human-verification.pdfIn PDF document text
    • https://wandersuechtig.de/images/roblox-polyguns-hack.pdfIn PDF document text
    • https://www.dierenartsberghman.be/images/free-roblox-weapons.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/free-robux-no-waiting-on-phone.pdfIn PDF document text
    • http://kids-academy.pl/images/what-games-to-play-on-roblox-to-get-free-robux.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/roblox-walk-through-walls-hack-download.pdfIn PDF document text
    • https://corbo.ru/images/free-obc-codes-roblox.pdfIn PDF document text
    • https://www.lavigny.ch/images/take-me-to-get-free-robux.pdfIn PDF document text
    • http://onlinemusicsolutions.com.au/images/dungeon-quest-hack-roblox.pdfIn PDF document text
    • http://hemmet-strand.dk/images/roblox-egg-farm-simulator-cheats.pdfIn PDF document text
    • https://www.mvp.co.nz/images/serveur-roblox-avec-admin-free.pdfIn PDF document text
    • http://mydevice.com.au/images/free-roblox-death-sound-effect.pdfIn PDF document text
    • http://lanoblaie.fr/images/go-thru-walls-roblox-jailbreak-hack-2021.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-only-working-today.pdfIn PDF document text
    • http://nevesomost.by/images/roblox-free-avaters.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-robux-ad-website.pdfIn PDF document text
    • http://asiasieja.pl/images/roblox-free-noob-skin.pdfIn PDF document text
    • http://dos.most.gov.la/images/free-accounts-free-robux-and-obc.pdfIn PDF document text
    • http://zarinnameh.ir/images/hack-dowloads-robux.pdfIn PDF document text
    • http://arch-centr.ru/images/take-anyones-robux-hack-created-by-robuxian.pdfIn PDF document text
    • http://dos.most.gov.la/images/cheat-engine-for-roblox-2021.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-roblox-hack-for-apocoleps-rizing.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/how-to-make-a-fake-free-robux-pop-up-roblox.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-hack-adopt-me-roblox.pdfIn PDF document text
    • http://k2visual.com.br/images/youtube-videos-how-to-get-free-robux.pdfIn PDF document text
    • http://eltisstudio.sk/images/infinite-jump-hack-roblox-2021.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/ar-hacks-roblox.pdfIn PDF document text
    • http://www.fanciullovito.it/images/free-account-roblox-biz.pdfIn PDF document text
    • https://sitam.co.in/images/free-roblox-game-card-codes-2021.pdfIn PDF document text
    • http://5346000.com/images/how-to-get-free-robux-100-works-2021.pdfIn PDF document text
    • http://pdapanache.com/images/free-codes-generator-downlaown-roblox.pdfIn PDF document text
    • https://zabota-kashira.ru/images/how-to-hack-roblox-accounts-youtube.pdfIn PDF document text
    • http://aeroclub-kaernten.at/images/free-robux-generator-no-human-verification-2021-ios.pdfIn PDF document text
    • https://www.stkdb.cz/images/how-to-hack-a-person-on-roblox-2021.pdfIn PDF document text
    • http://www.nielsen2u.dk/images/hacks-for-robux-no-human-verifycation.pdfIn PDF document text
    • https://tokunfome.com.br/images/treasure-hunrt-simulator-roblox-hack.pdfIn PDF document text
    • http://reggieslockandkey.com/images/funny-roblox-characters-free.pdfIn PDF document text
    • http://tegeler-segler.de/images/dinosaur-simulator-in-roblox-hack-glitch-for-dna.pdfIn PDF document text
    • http://evp-sanorlenok.ru/images/is-there-any-virusfree-script-executor-for-roblox.pdfIn PDF document text
    • https://rietenwinkel.nl/images/roblox-making-other-people-chat-hack.pdfIn PDF document text
    • http://prodent.com.ua/images/roblox-cheats-no-human-verification.pdfIn PDF document text
    • http://atelierweb.it/images/how-to-get-free-clothes-on-roblox-2021-ipad.pdfIn PDF document text
    • https://www.udivadlahotel.cz/images/free-knife-codes-for-assassin-roblox.pdfIn PDF document text
    • http://www.beantownlimo.com/images/all-roblox-bloxburg-hack-2021.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/roblox-pet-sim-free-vip-server.pdfIn PDF document text
    • http://safari-crimea.com/images/new-code-hack-speed-roblox-jailbreak.pdfIn PDF document text
    • http://biccairo.com/images/can-i-have-free-robux.pdfIn PDF document text
    • http://kermas.eu/images/robux-hack-free-codes-no-verification.pdfIn PDF document text
    +18 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000082cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x82CD 25676 bytes
SHA-256: e7f6e297baf5c67ff36f49440859a6026c002f74cab6f2e59c05a48c746f717e
font_01_sfnt_off0000bf06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF06 18260 bytes
SHA-256: 8edd454aa1febd32b5c2864cc99900a0eb44ea83a9d27e3bb6feee08b974db13

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