Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a1eabe1b510cf4…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 21:54:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 745b175d24878d0923370d3dfa802145 SHA-1: 3c58d2f7574050dd4e83767bb42549aad74b1d7c SHA-256: 49a1eabe1b510cf4b2c76148950cb36cda96378deef6fedb61dd9f283383382e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links, with the primary one identified as a malicious redirector. This redirector is associated with lures for 'free generators' and 'game hacks', specifically mentioning 'TikTok Par Free Followers Kaise Badhaye'. The ML classifier also strongly flagged this PDF as malicious. The presence of a call-to-action button further supports the deceptive nature of the document.

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.tw/app/835599320/tiktok-par-free-followers-kaise-badhaye-game-hack In PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/robux-for-kids_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/rbx-roblox_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-promo-codes-robux_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/cheat-fly-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/roblox-jailbreak-cash-hack_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://kultura.orb.ru/uploads/ckfinder/userfiles/files/boost9-com-roblox-hack_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_off0000306e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306E 22520 bytes
SHA-256: 3f491b6ac809bfbf2ce5ceaf58b0f88faf631b88ef2b513d866f97a207757d4c
font_01_sfnt_off00006291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6291 19100 bytes
SHA-256: 45c26d4753beb0d5f4088ebc74ef017184cfe44ab091c67ab48078619112f8a2