Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e736a748fb06c82…

MALICIOUS

PDF

36.6 KB Created: 2020-08-16 18:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0dc2f9b550aafe88322d3d7f0434d291 SHA-1: cfd9b144ca585dc351d77e87d6a55b39431dcdc7 SHA-256: 6e736a748fb06c82014c7d6d6524d9ae4c9cf068b656bedd60765c3e362399a1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious infrastructure. The embedded URL and the document body text, though heavily obfuscated, contain a URL that points to a redirector service. This indicates a phishing or scam attempt disguised as a free download.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=calibre+font+free++mac In PDF document text
    • http://files.mycorporatecounselor.com/uploads/1/3/1/4/131437983/1606706.pdfIn PDF document text
    • http://files.liviajatoba.com/uploads/1/3/0/7/130739369/mitetavuluru.pdfIn PDF document text
    • http://files.dianajart.com/uploads/1/3/0/7/130738755/aa5843a.pdfIn PDF document text
    • http://kenola.lahereclecticbeautysupply.com/uploads/1/3/0/9/130969723/2133688.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/jurnal_akuntansi_biaya_konvensional.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0586/2307/files/75556372182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9126/3649/files/jilibadevukamir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8064/6807/files/mojizanabexedosunukukoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4962/3462/files/rinumip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3917/6357/files/92757874981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2335/files/42749990915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasidobedibugamis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7083/2283/files/53040078095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/nordvpn_is_horrible.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn 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
font_00_sfnt_off00005156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5156 4896 bytes
SHA-256: 2866cf6fca98ca705c2b76bcc76c58669766c4eb0f71bcca58284381c3f8b3a2
font_01_sfnt_off000061e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E3 10528 bytes
SHA-256: 2020ea6e15a6cfaddc8d16e5f4dfe71254b8fc1d904e63938a327dae421bb4d7

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