Malicious PDF — malware analysis report

Static analysis result for SHA-256 0259e4f688325bc8…

MALICIOUS

PDF

34.2 KB Created: 2021-06-23 09:35:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: a2157edfeb89a2b0d6e2a85315fd195a SHA-1: d3a75721dffa42996f9c08fa8f1d17241c55a5b6 SHA-256: 0259e4f688325bc88cf565abfff2f0b1cd723df4f8148162f95423e72f0194a1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that are flagged as malicious redirectors, specifically targeting users interested in game hacks and generators for titles like Roblox and Coin Master. The document body and heuristics indicate a lure to download or access potentially harmful content from these URLs. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links within the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-promo-codes-list-free-game-hack In PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-royal-high-free-diamonds_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-speed-hack-id_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-gamepass-2021-roblox_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-rich-accounts-in-roblox_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/what-games-on-roblox-give-you-free-robux_GM431946152.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_off00002fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCC 21728 bytes
SHA-256: db0a08c2c94e8ef9d3ba47bd372983567315d98ddc65ec582b663b577204573a
font_01_sfnt_off00005f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F66 19460 bytes
SHA-256: a5e242ebd16a1455eedcfc85e0eb10577876ff3c87d5315e8aca313712fbfe9a

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