Malicious PDF — malware analysis report

Static analysis result for SHA-256 a75f9b0fa6dc2315…

MALICIOUS

PDF

46.2 KB Created: 2020-08-05 11:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e29d6296dc20bd7b5ff449aadae552d7 SHA-1: 6429354a60652f7e663d35f6772f0b5873a454b7 SHA-256: a75f9b0fa6dc231571e8fdfc332c7a80de38a1ae78f0a52cc79ff88cf47c8f69
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, disguised as a link to a book. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on 'cdn.shopify.com'. The ML classifier strongly indicates maliciousness. The primary attack pattern involves redirecting the user to a malicious site, likely for phishing or malware delivery.

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=counseling+and+therapy+skills+4th+edition+pdf In PDF document text
    • http://files.kasubaworks.com/uploads/1/3/1/3/131379899/747306.pdfIn PDF document text
    • http://files.chiarracjoseph.net/uploads/1/3/2/6/132695582/bofomepozed_mipev_reseton_tibuwupefazuzib.pdfIn PDF document text
    • http://files.makeuphvney.com/uploads/1/3/0/9/130969371/9424135.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/1/0444/1836/7654/files/c_form_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/twitter_archive_deleted_tweets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/kexubininotovelof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8267/8439/files/statistical_data_analysis_for_the_physical_sciences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/pavuxonavase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6127/0935/files/biceps_workout_at_gym.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0874/3835/files/2638975986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/94840098629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/slayer_raining_blood_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/daborugilowif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9541/5189/files/12831785512.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 7

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_off00007636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7636 5460 bytes
SHA-256: 6d836b9969901a1b3edc4022264463f9fde781691bd47d9b84f498da98e1ec63
font_01_sfnt_off000088d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D1 10140 bytes
SHA-256: b33d48ecca6dbdef6826f66b67064123e00c55718ed1ee0ca112e76fa758fa24

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