Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e06595f3928f82…

MALICIOUS

PDF

47.1 KB Created: 2021-06-03 07:38:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 377466e88dc55707d0ce577e45d61621 SHA-1: 0ab28e12667babbda430d670eb224f2b26e3f02d SHA-256: 29e06595f3928f824605dcf1128b17a80f8f71687af94876d43bb245cca031da
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector, disguised as 'free generators' or 'game hacks'. The document body and embedded links suggest a lure for users seeking in-game currency or cheats, which is a common tactic for phishing or malware distribution. The presence of numerous links to SEO-optimized PDF files further indicates an attempt to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.online/app/431946152/robux-hack-no-download-2021-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_004_off00004ff9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FF9 29272 bytes
SHA-256: 15e2d6e8349910c5b91656d3cb4358a09db7c80d1724eb6b55eb0d4a25705811
font_01_sfnt_off000092be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92BE 19228 bytes
SHA-256: e35bfbf4af10f99704261edd1f1c21de78732923151c07e177a02406771163c1

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