Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a529d53b719e2b8…

MALICIOUS

PDF

52.4 KB Created: 2020-08-15 06:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27b2b2f8ceb1ceb4c12c0f3582ead60a SHA-1: 88e976456673ca604edcb17876c9d35a3dbfb335 SHA-256: 6a529d53b719e2b86e7239faec9d24e31f8f76c7aa15a6abdf547ed0fc7ea74c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure to download a 'simple decision making matrix template', which is likely a phishing or malware distribution attempt. The presence of a malicious redirector and a link farm suggests an attempt to drive traffic to malicious content.

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=simple+decision+making+matrix+template In PDF document text
    • http://files.houseoflifeonline.com/uploads/1/3/1/3/131379919/vurevikadunozur.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/1/0433/6104/2591/files/gta_5_stunt_jump_locations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7404/3552/files/minecraft_trigger_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/isro_space_quiz_questions_and_answers_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2088/files/19606256006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/11290959289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/zifabugasut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/silence_rom_kodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3228/9178/files/all_yoga_asanas_postures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4364/2792/files/perl_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5355/files/80484653290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/lawewetaledadono.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_off00008f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F55 5628 bytes
SHA-256: c7893248810d485b839163f104eb9f698e6278c4b3918f34010f454a9a175ad5
font_01_sfnt_off0000a25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA25E 10120 bytes
SHA-256: 7234a7fb52cfceccaccad3a1dae1941d0f66940606cb7a062891d2668f035e1f

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