Malicious PDF — malware analysis report

Static analysis result for SHA-256 0169f11949a1bfd5…

MALICIOUS

PDF

47.1 KB Created: 2021-05-14 15:02:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4a101a7790c30349983191cd1c5b5476 SHA-1: 15cc00dc2cae82a3cae97064c0eb78b30b36491e SHA-256: 0169f11949a1bfd5a100a0b52502196ea308c42bd5ec22c6a60bc87bdc56fa06
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links disguised as game hacks and generators, aiming to trick users into visiting malicious websites. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further malware downloads or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • 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.
  • 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://netcdn.xyz/app/406889139/free-coin-master-game-game-hack PDF link annotation
    • http://stomatoloska-ordinacija-rijeka.com/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bc6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BC6 28224 bytes
SHA-256: 4499141bef3d56c603c60620a7615cdf50a8de39f9950550b186be3cdfff07c9
font_01_sfnt_off00008cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBD 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off000096a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96A3 17968 bytes
SHA-256: 26c9c4b875abe90d5a203e632a25aafef6162dffda8186c61deacbdf7b71a521

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