Malicious PDF — malware analysis report

Static analysis result for SHA-256 03166d5eef789ce8…

MALICIOUS

PDF

49.4 KB Created: 2020-08-12 01:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36c0450e8c9e531f32d019537da35170 SHA-1: 4c9d8b1f9778e41d0502a68863a9b57b4c7a463f SHA-256: 03166d5eef789ce8d50cc8ed8a7224c554c9b0ea181f1e87458b2fdfb4da1cbc
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.com/pify?keyword=psychological+trauma+theory+research+practice+and+policy+pdf`, which is flagged as malicious. This indicates a phishing or scam attempt, likely using the document as a lure for users to click the link for a supposed free download. 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=psychological+trauma+theory+research+practice+and+policy+pdf In PDF document text
    • http://netinib.winebusinesssolutions.net/uploads/1/3/0/8/130814174/pojebeletopoda.pdfIn PDF document text
    • http://kagon.easytobuyahouse.com/uploads/1/3/1/3/131379803/raxexobina-vodegobi-doranimo-jikakudati.pdfIn PDF document text
    • http://files.aging-success.com/uploads/1/3/1/6/131606965/38c3840a5.pdfIn PDF document text
    • http://files.helsbellshandmade.com/uploads/1/3/2/7/132712324/bozoduvaduku_pumilib_bukoluwokam.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/1/0431/6705/6028/files/xofokidunaratadoduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8722/4214/files/27000444134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/winchester_model_12_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/7850061770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/xovelafariforel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0774/5958/files/30395957501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/double_take_yify_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7542/0835/files/59124320991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0510/7620/files/58021044911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/cinematography_terms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7563/3306/files/72709388468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1092/4437/files/15982909337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/zuwaw.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_off00008162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8162 5672 bytes
SHA-256: e268b6ba703b0f52a07f02edbfe11fc11badd9d46b2f251b51a960621d81804d
font_01_sfnt_off00009488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9488 10392 bytes
SHA-256: 3dc212a258ee7e772c890981518f9c8943e4ad5c4cfb5dc68837b14eff0c0994