Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d5c4b59024b2f1…

MALICIOUS

PDF

38.0 KB Created: 2020-08-19 16:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab67e2de1c98b30dbe12cf2ffb4fd761 SHA-1: 606250e65b0feb01611fd39a5818766ecdb38253 SHA-256: 74d5c4b59024b2f14d9e978cd99800d4ac690e1e53c542244cde433c95a493fa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to lure victims with a fake download for 'arkham horror lcg playmat pdf'. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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=arkham+horror+lcg+playmat+pdf In PDF document text
    • http://files.4arrowsoutdoors.com/uploads/1/3/0/8/130814672/1910526.pdfIn PDF document text
    • http://files.nespractitioners.com/uploads/1/3/0/7/130739907/8209662.pdfIn PDF document text
    • http://files.fogdogfarm.com/uploads/1/3/2/7/132740633/dufononofux.pdfIn PDF document text
    • http://files.veganslovegluten.com/uploads/1/3/1/4/131454126/9444061.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5804/files/visav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/benami_property_transactions_act_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7246/files/que_es_la_administracion_publica_paraestatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/jopuxex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6251/8182/files/60936444061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0004/4440/files/dijowizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7757/3539/files/skip_counting_worksheets_free_2nd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9258/8184/files/beautiful_background_hd_wallpaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/south_africa_culture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7329/6801/files/89912035780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9164/6880/files/64824553113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/cfa_level_1_2020_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6777/6919/files/29113340641.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA0 5060 bytes
SHA-256: 6a7ec6bf210c53c9b401d4abc88fea2a8037734db58b2d74e8b49b60cc495d27
font_01_sfnt_off00005bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDA 9712 bytes
SHA-256: 68ab7f4b44d88a06a248773e4ee15802f5d5b20ddafd2541d700d5d28aff77a9
font_02_sfnt_off00007cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e