Malicious PDF — malware analysis report

Static analysis result for SHA-256 088b013e426c3b0f…

MALICIOUS

PDF

44.3 KB Created: 2020-08-23 07:14:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 283a7ba93fada87c9bc13d3233befb05 SHA-1: 5bee3d57aaf12c606b9c0f7909a763cada7d560f SHA-256: 088b013e426c3b0f9d46d21448fb9572c436e79eb0086709b72cd1d358f7b525
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) and a large number of PDFs hosted on Shopify. This suggests a link farm or phishing campaign designed to drive traffic to potentially malicious sites. The ML classifier also strongly indicated maliciousness.

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=servicenow+knowledge+base+article+template In PDF document text
    • http://sotemo.villaserenacabo.net/uploads/1/3/1/4/131454265/fawokufiririp-nuzusezulatimel-toxeloxuramufib.pdfIn PDF document text
    • http://wilibu.baleupfeeders.com/uploads/1/3/1/3/131398097/pakika.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/1/0431/1541/3661/files/jinizudifafevonafin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89120683065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5469/3537/files/tubuh_batuan_beku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1746/2182/files/pdf_split_mac_os_x.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6671/0433/files/rivak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/ruzujisala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4213/6476/files/morphology_and_anatomy_of_cockroach_class_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/top_faction_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/advantages_of_lifi_technology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1404/5341/files/13980900155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3281/3469/files/94334639878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/florida_construction_law_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2426/1026/files/kasewewuzepelexe.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 1

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_off00006b96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B96 5852 bytes
SHA-256: a936770428ed8558a0fdf683a3700f4db31a46ddfc9982eec63515cccb7e2f01
font_01_sfnt_off00007f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7D 10628 bytes
SHA-256: b8854e927992b9b964f1b89d9cba63a66a53374fb027bba0c06b4e3f907c749b

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