Malicious PDF — malware analysis report

Static analysis result for SHA-256 43a91b98e2fd0250…

MALICIOUS

PDF

38.7 KB Created: 2020-08-22 20:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 495d4e790f3b8d502a1ed2a411e7c08f SHA-1: be8aa667401a734f5e0338b4b577f9a1a5f510bb SHA-256: 43a91b98e2fd02502023d0e1c3bc4ea9c50e4230c7ab123483f9342633747d4a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, also contains this URL and other URLs that appear to be part of a link farm designed for SEO manipulation. The primary malicious URL is used to redirect the user, likely to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=babuji+dheere+chalna+remix+song In PDF document text
    • http://gulubup.opengatetheatre.com/uploads/1/3/1/3/131383943/ac8a502e23ad78.pdfIn PDF document text
    • http://wusabe.multimediocrityshow.com/uploads/1/3/0/7/130740178/1660626.pdfIn PDF document text
    • http://files.southatlantacherokees.com/uploads/1/3/0/7/130739522/f112af7f2363c.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/1/0462/7690/3061/files/utorrent_app_for_pc_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/fijukag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/xapuraxomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/tijugerosaxejizole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4887/6697/files/kubernetes_documentation_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5168/7837/files/best_ayurvedic_medicine_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4277/files/91025000271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1954/files/xuruxipake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9013/3663/files/wepijerese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/95233420356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/police_radio_scanner_apps_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8591/3500/files/11664028326.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 3

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_off00004e41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E41 5688 bytes
SHA-256: de16e467b65f641b63e8f1d1c0ee531b7568113fdf07810e28262e9563db03df
font_01_sfnt_off00006164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6164 14036 bytes
SHA-256: ec4c01c26b118cb7ec432d8211a07e788e5d92510d3950e55c051ea278c86a93

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