Malicious PDF — malware analysis report

Static analysis result for SHA-256 2859a90f626f06d4…

MALICIOUS

PDF

45.2 KB Created: 2021-05-30 09:23:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 818ad8883192c7023407d734ed263cfe SHA-1: 5405400f0671dee9bd62fe526734c1263c304970 SHA-256: 2859a90f626f06d4c30dd5b48132ecc06cae672513db7ae6f890c469b1e1ba5f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector for game hacks. The document body and embedded links suggest a lure for users seeking free in-game currency or game cheats. The presence of these links indicates an attempt to direct users to potentially malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9580

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 https://netcdn.xyz/app/406889139/how-to-get-free-spins-for-coin-master-game-hack In PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/minecraft-free_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-minecraft-texture-packs_GM479516143.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
stream_003_off0000556c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x556C 24912 bytes
SHA-256: 47c8810b1d9c87d79e4e20fb56353decc007de2e4a94fe9c63bdc9a4755c6e2e
font_01_sfnt_off00008e61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E61 18052 bytes
SHA-256: 3cfae0e628493b06a11893ba870a091d0c1d4835c1ebffdd70b8f2a1c7d637a9