Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75bbe1ea04bd7d2…

MALICIOUS

PDF

50.2 KB Created: 2020-08-07 15:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89b3361c87c2de4576ded7c48e514976 SHA-1: 9f4032fa5a840a96ca96c1a06af0e22af267807d SHA-256: d75bbe1ea04bd7d21f94b7a02037160a398f3d174e99e013420c81835b3a8ed3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'iso aperture shutter speed calculator pdf' and the URL itself, suggesting a lure. The presence of numerous embedded links, many pointing to Shopify, indicates a link farm strategy, likely to obscure the ultimate malicious destination.

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.com/pify?keyword=iso+aperture+shutter+speed+calculator+pdf In PDF document text
    • http://files.peerpatient.com.au/uploads/1/3/0/7/130775868/fa6a4938e7498.pdfIn PDF document text
    • http://files.edelweisshaus.com/uploads/1/3/0/9/130969967/dinipasegeseki.pdfIn PDF document text
    • http://files.catarellaphoto.com/uploads/1/3/2/6/132681823/gokamuzisega-fegegix-tolelokazovojiz.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/1/0438/8651/0232/files/82825779226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4034/8059/files/tutopiwivapesuzodedurekup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/kipus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/wumezozirewozojiwoxivotob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/73013607346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/a_stone_sat_still.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/the_river_gary_paulsen_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5903/files/muworivajoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/15434610367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7728/files/wimixoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27055139941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/53553333486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/4143888925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/98288020662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/nys_corrections_officer_exam_2017.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_off00008660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8660 5180 bytes
SHA-256: 031ae74ee13d92a5042cbece972b1dd6ca08bad7e58d321c2dadebcbc7e4394e
font_01_sfnt_off000097fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97FD 10300 bytes
SHA-256: b3cb949a3b903ff744790cb7fd2a7e43f9f31d6322ffb038a4d8854ba1389332