Malicious PDF — malware analysis report

Static analysis result for SHA-256 280ccc0e6cbdb2fc…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 02:31:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f9d0b340bbd1076f40dfea6e744bdd79 SHA-1: 208385fe9cd259d5fc0a451dd51d695420b10754 SHA-256: 280ccc0e6cbdb2fcb944784212db1241b9e8a15d9ce9afe70645df70aeb3bc7c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and other malicious PDFs, masquerading as game hacks and cheats. The primary lure is 'Become A Hacker On Roblox', directing users to a malicious URL. The document body and heuristics indicate a social engineering tactic to trick users into visiting these links, likely leading to further malware downloads or phishing attempts.

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/become-a-hacker-on-roblox-game-hack In PDF document text
    • http://perpustakaan-stikesmsb.com/repository/http-www-cheatsguru-com-pc-roblox-cheats-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/tiktok-free-crowncom_GM835599320.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-hack-tool-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-coin-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/dragon-ball-z-online-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-stuff-for-free-on-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/claim-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-german-flag-tshirt-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-hack-with-winrar_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/uirbx-club-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-roblox-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/rc7-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-you-doing-l2-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBA 22384 bytes
SHA-256: 0e3305af230e6d2de61c7eb6b19f65d83cbbc7bba66d6cba014330ab7b1050d9
font_01_sfnt_off000061b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B6 18916 bytes
SHA-256: 2b84763d0e844536efa580e90d9b0634f40447ca459a5ae5a7ad0c784c24855c

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