Malicious PDF — malware analysis report

Static analysis result for SHA-256 03b32ff453890ad5…

MALICIOUS

PDF

38.9 KB Created: 2020-08-02 23:03:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef9595894365168066e8258fb9062c48 SHA-1: a970dc7396c2cf76dd9cd58496a8a56bcf76f729 SHA-256: 03b32ff453890ad5b2846ffa1e2210fcc69d5503660a42e545eec633b9480d61
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate the document's primary purpose is to redirect users to potentially malicious sites. The embedded URLs and the document body, which includes a lure for a 'Tigershark jet ski manual', support this attack pattern.

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=tigershark+jet+ski+manual In PDF document text
    • http://files.webcamgreece.com/uploads/1/3/1/6/131606087/xidonumajegiluse.pdfIn PDF document text
    • http://files.strausorganizingsolutions.com/uploads/1/3/2/7/132740464/kapin-zamasobexijozaw-mamoruf.pdfIn PDF document text
    • http://files.a-r-a.org/uploads/1/3/2/6/132680922/wonojoralesa-fosome-pawofi-buxojixomeniko.pdfIn PDF document text
    • http://files.shotoryujutsukarate.com/uploads/1/3/0/7/130776246/3c335eb72a.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/1/0431/3199/4280/files/gexurilowenajafobiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/sawufipog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/valivutuxokomag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/xirutosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/68659020021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/volanavago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/72095837147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/gezesonisavowiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6255/7856/files/rofonemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/ssd_of_two_arrays_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6385/2712/files/35900838225.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54CD 5188 bytes
SHA-256: 08530dcb841b001010bf85d28e1a27129c71fd6197b3fca48ee3f9962cb440e0
font_01_sfnt_off00006653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 12724 bytes
SHA-256: 4b3737ec6b97ec0916064eb3703446f881fe84bdc5d60a44a60a009562d5b7ab