PDF malware analysis — malicious · 5c413bbc544a1d7b

MALICIOUS

PDF

59.3 KB Created: 2021-04-05 19:49:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: f7b87e70ec265378df0ee859b6191662 SHA-1: e7842d26020fa7ae36e8835187420cce48a93f06 SHA-256: 5c413bbc544a1d7b9f97252500bd572595e485ba95d7e107ff2e197929ba0d1e

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The document uses a social engineering lure related to 'Free Robux' and impersonates Amazon to trick users into downloading a malicious PDF. The embedded URL and numerous other similar URLs suggest a campaign distributing malware disguised as game-related cheats or generators. While no scripts were explicitly extracted, the PDF structure and ML classifier indicate malicious intent, likely involving exploitation or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.7795

Heuristics 5

Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE

Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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/free-robux-no-verification-or-offer.
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/free-robux-no-verification-or-offer PDF link annotation
- http://schlossschaenke-andernach.de/images/cerberus-hack-roblox.pdfIn PDF document text
- http://ecoleduchat-grenoble.fr/images/free-robux-generator-no-servey.pdfIn PDF document text
- http://www.hawler.in/images/free-rs999-999-999-on-roblox.pdfIn PDF document text
- http://imp.lg.ua/images/roblox-mod-apk-unlimited-robux-2021-download-free.pdfIn PDF document text
- http://www.mediaxin.net/images/how-to-get-free-robux-july-2021.pdfIn PDF document text
- http://tc-kulmbach.de/images/cheats-infinte-jump-roblox-fe2.pdfIn PDF document text
- http://legs11.co.za/images/free-robux-hack-us.pdfIn PDF document text
- http://bwharrisalumniusa.org/images/league-of-roblox-hack.pdfIn PDF document text
- http://linde-erbach.de/images/roblox-exploit-download-2021-free.pdfIn PDF document text
- http://www.inservis.cl/images/robux-hack-download-ios.pdfIn PDF document text
- http://www.drent.se/images/free-robux-generator-tool-paste.pdfIn PDF document text
- http://safwafurniture.com/images/roblox-murder-mystery-2-candies-hack.pdfIn PDF document text
- http://learningarabic.co.uk/images/shoulderless-shirt-in-roblox-free.pdfIn PDF document text
- http://www.lionel-seppoloni.fr/images/bleu-roblox-exploit-download-free.pdfIn PDF document text
- http://bibliodetki.ru/images/roblox-games-that-have-free-boomboxes.pdfIn PDF document text
- http://ernstgloves.co.il/images/free4mobile24-com-free-robux.pdfIn PDF document text
- http://www.mikramarine.gr/images/roblox-group-admin-hack.pdfIn PDF document text
- http://genialica.de/images/roblox-player-download-2021-free.pdfIn PDF document text
- http://stomatolog-choszczno.pl/images/how-to-hack-fly-on-skyward-roblox.pdfIn PDF document text
- http://ecoleduchat-grenoble.fr/images/roblox-cheat-engine-mac-download.pdfIn PDF document text
- http://www.lionel-seppoloni.fr/images/roblox-how-to-hack-into-gallant-gaming-account.pdfIn PDF document text
- https://www.fhccu.com/images/free-roblox-account-cookies.pdfIn PDF document text
- http://demenagementlandry.com/images/protosmasher-free-download-roblox.pdfIn PDF document text
- http://serviio.org/images/free-robux-in-robolx.pdfIn PDF document text
- https://gestionpatrimonial.net/images/free-roblox-accounts-robuxian.pdfIn PDF document text
- http://the-specials.ch/images/free-gameplay-to-use-shooting-star-roblox.pdfIn PDF document text
- https://ballaratcaravans.com.au/images/roblox-get-free-robux-card-codes.pdfIn PDF document text
- http://rumler.pl/images/free-owner-admin-roblox.pdfIn PDF document text
- http://www.fanciullovito.it/images/hacks-for-roblox-ro-boxing.pdfIn PDF document text
- https://www.najeebqasmi.com/images/free-roblox-executor-good-api.pdfIn PDF document text
- https://www.lavigny.ch/images/breezex-adventures-hacks-roblox.pdfIn PDF document text
- http://wokbaarlo.nl/images/how-do-you-get-free-robux-easy-2021.pdfIn PDF document text
- http://huananhai.net/images/free-robux-hack-2021-lenovo.pdfIn PDF document text
- https://gigbagwinkel.nl/images/counter-blox-roblox-offensive-free-skins.pdfIn PDF document text
- http://legs11.co.za/images/roblox-kill-script-hack.pdfIn PDF document text
- http://dos.most.gov.la/images/auto-clicker-mac-free-roblox.pdfIn PDF document text
- http://famoirs.co.uk/images/how-to-speed-hack-on-roblox-without-cheat-engine-2021.pdfIn PDF document text
- https://jsgwertherborgholzhausen.de/images/how-to-hack-robux-with-cheat-engine-64-2021.pdfIn PDF document text
- http://fratellimazzoleni.it/images/roblox-one-piece-golden-age-cheat-engine.pdfIn PDF document text
- https://www.sauvonsleclimat.org/images/free-robux-generator-no-verification-or-survey.pdfIn PDF document text
- http://asiashop-france.fr/images/cheat-roblox-kick-players.pdfIn PDF document text
- http://dermaceutic.co.uk/images/is-it-possible-to-hack-robux.pdfIn PDF document text
- https://kunstmalen.ch/images/hack-robux-2021-android.pdfIn PDF document text
- http://safwafurniture.com/images/how-to-get-400-robux-on-roblox-for-free-2021.pdfIn PDF document text
- http://iluvlocalplaces.com/images/roblox-strucid-battle-royale-aimbot-hack-full-lua.pdfIn PDF document text
- http://www.inservis.cl/images/roblox-robux-generator-v1-0-free-download.pdfIn PDF document text
- http://smart-pro.co.uk/images/roblox-apocalypse-rising-spawn-hack.pdfIn PDF document text
- http://lakeshistory.com/images/hack-knife-roblox.pdfIn PDF document text
- http://www.campiresine.it/images/free-robux-urban.pdfIn PDF document text
+17 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000085d6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x85D6	27684 bytes
SHA-256: `3c591cd086eb70909c10892731d6abecff6a13df3ff15d5d3a6e442c8be856ba`
`font_01_sfnt_off0000c47c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC47C	18292 bytes
SHA-256: `4be2acf3b89502f7babf90116784591cd3c7d985d408e7d822b3c7de0a2b1ee9`

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