Malicious PDF — malware analysis report

Static analysis result for SHA-256 a71b2b1f165e566d…

MALICIOUS

PDF

57.6 KB Created: 2021-04-07 02:06:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f5f4eb3fb66da250662352fb73efb896 SHA-1: 6f9a908eccf0485456742f88f1919240fd6874f6 SHA-256: a71b2b1f165e566de208d4f84aeb55718d2758dd6b1a2d219b6ba2486d50874e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a primary focus on 'game hacks' for Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a malicious intent to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs suggest a social engineering tactic to trick users into downloading malware or visiting malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6397

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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://enigmagenerator.com/app/431946152/roblox-game-hack PDF link annotation
    • http://uctovnictvosnv.sk/images/free-hair-roblox-edit-avatar.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-cheat-for-infinite-oney-on-mining-simulator.pdfIn PDF document text
    • http://ppsrassetprotection.com.au/images/robux-promo-codes-2021-no-hack.pdfIn PDF document text
    • https://sitam.co.in/images/how-to-get-dinosaurs-for-free-on-roblox.pdfIn PDF document text
    • https://www.plumbermedics.com/images/hack-of-getting-free-robux.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/cheat-roblox-obby.pdfIn PDF document text
    • https://estalagemmonteverde.com.br/images/how-to-get-a-free-boombox-on-roblox.pdfIn PDF document text
    • http://www.adravietnam.org/images/how-get-free-hair-on-roblox.pdfIn PDF document text
    • https://www.tsdb.com.au/images/roblox-hack-stand-user.pdfIn PDF document text
    • https://hbpbenin.com/images/how-to-find-free-helicopter-in-mad-city-roblox.pdfIn PDF document text
    • http://eddieblum.nl/images/no-hack-robux.pdfIn PDF document text
    • https://www.ukrtrans.biz/images/roblox-free-draw-alpha-2-discord.pdfIn PDF document text
    • http://krymtorg-r.ru/images/free-robux-on-robux-store.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-robux-game-uncopylockedf.pdfIn PDF document text
    • https://www.cnte.org.br/images/roblox-codes-cheats.pdfIn PDF document text
    • http://www.metanoiaconsultantsglobal.com/images/hack-for-rubux-on-roblox.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-become-a-hacker-in-roblox-ios.pdfIn PDF document text
    • http://www.brtes.com/images/roblox-free-gucci-pants.pdfIn PDF document text
    • http://echosvoix.ch/images/free-robux-in-5-seconds.pdfIn PDF document text
    • https://socialvalue.gr/images/this-exploit-hack-has-been-developed-by-ak47-roblox.pdfIn PDF document text
    • https://www.devries-group.de/images/how-to-hack-roblox-vampire-hunters-2.pdfIn PDF document text
    • http://keepcasscountybeautiful.com/images/hack-roblox-lumber-tycoon2.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-parkour-free-glowing-glove.pdfIn PDF document text
    • http://swibome.nl/images/free-angel-wings-roblox.pdfIn PDF document text
    • http://onlinemusicsolutions.com.au/images/cheating-prank-in-roblox.pdfIn PDF document text
    • https://mixdoors.ru:443/images/dungeon-quest-roblox-hack.pdfIn PDF document text
    • https://billiekawende.com/images/help-my-roblox-account-got-hacked-and-dosent-have-security.pdfIn PDF document text
    • http://grazianolangone.it/images/how-to-hack-life-in-paradise-roblox.pdfIn PDF document text
    • http://salantiskis.lt/images/descargar-roblox-hackeado-para-android.pdfIn PDF document text
    • http://codicicolori.com/images/install-roblox-free-latest-version.pdfIn PDF document text
    • http://thomas-hartl.at/images/roblox-hack-teleport-and-wool-and-speed.pdfIn PDF document text
    • http://wsit.at/images/roblox-how-to-sell-a-t-shirt-for-free.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/roblox-robux-hack-november-2021.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/tbc-roblox-free.pdfIn PDF document text
    • http://racunari.in.rs/images/hacks-for-roblox-pet-simulator.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/free-roblox-hakercom.pdfIn PDF document text
    • http://greenoase.be/images/hack-fly-roblox-jailbreak-2021.pdfIn PDF document text
    • https://www.plumbermedics.com/images/how-to-get-free-robux-on-xbox.pdfIn PDF document text
    • http://petarda.hu/images/como-hackear-roblox-rapido-y-facil.pdfIn PDF document text
    • http://www.studiodamato.it/images/roblox-vehicle-simulator-hack.pdfIn PDF document text
    • http://jugendfeuerwehr-scheinfeld.de/images/roblox-jailbreak-hack-money-2021.pdfIn PDF document text
    • http://ghknights.org/images/how-to-get-any-item-on-roblox-for-free.pdfIn PDF document text
    • http://leigraphics.com/images/roblox-cheat-engine-bypass-2021-super-power-training.pdfIn PDF document text
    • https://www.knxuk.org/images/would-you-get-banned-from-roblox-if-you-hacked.pdfIn PDF document text
    • http://xn--59-6kcusgqlmfgen3m.xn--p1ai/images/free-robux-giveaway-live-youtube.pdfIn PDF document text
    • http://kontaktadig.se/images/how-to-hack-roblox-jailbreak-with-cheat-engine.pdfIn PDF document text
    • https://vtvvaals.nl/images/roblox-murdere-mystery-2-candy-hack.pdfIn PDF document text
    • http://ordineavvocatitempio.it/images/how-to-get-free-robux-legally.pdfIn PDF document text
    • http://axiapublishers.com/images/how-to-hack-roblox-prison-life-2021.pdfIn PDF document text
    +15 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00007228.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7228 26808 bytes
SHA-256: d5f89fca7391cce591636ff8390bcbfef5bf765a782ec9efd49f4028a2127ec8
font_01_sfnt_off0000aeea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEEA 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off0000bb92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB92 18900 bytes
SHA-256: 92f1f3297d3d253a4ad8657218ebdc5b99ae9dc304141f128b27c1fff38e7571