Malicious PDF — malware analysis report

Static analysis result for SHA-256 0458ad5676eb9c62…

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 00:34:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fdd675af7b241a18c35ce6f1000b8dd6 SHA-1: c57fd23023fcb23f08f2d0a3680ffc667e970e4c SHA-256: 0458ad5676eb9c62433be40c23ae2f7f27dc9e026c9fe3e05ccc6ec25fcc7af3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple embedded URLs and a prominent lure related to 'Free Robux Generator No Verify', indicating a phishing or scam attempt. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests the document's purpose is to redirect users to potentially malicious sites. While no scripts were extracted, the document's structure and content point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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 http://netcdn.co/app/431946152/free-robux-generator-no-verify-game-hack PDF link annotation
    • http://olimpik.mk/imagescke/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-to-fix-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/hack-download-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-food_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F76 22464 bytes
SHA-256: 7a330a456c07ebc5abbe90adc2fb3b3b5214c9c15aff58d928f39b3a86876546
font_01_sfnt_off000061df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DF 19256 bytes
SHA-256: 9f7b7a323a9b5c2dba7b49f3f78d2d9e80201d7eae0b9312c9deae4146b56ac6

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