Malicious PDF — malware analysis report

Static analysis result for SHA-256 163b5618ca5b5482…

MALICIOUS

PDF

40.3 KB Created: 2020-08-20 09:25:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 967d3abdc408379c8247251be6fc8945 SHA-1: 9ea1a93316729cd0e62be8860d2593a685ec956c SHA-256: 163b5618ca5b54824350347c7f6d7c07f993dba3e0d8f8b7fad99db32308060c
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) which is flagged as malicious. The document body, though obfuscated, contains text related to 'simple goal setting worksheet pdf' and the URL itself, suggesting a phishing or scam lure. The presence of a large number of external PDF links, many of which are hosted on Shopify, indicates a link farm designed to attract traffic, likely for malicious purposes.

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+goal+setting+worksheet+pdf In PDF document text
    • http://guxes.connorshillgospelhall.com/uploads/1/3/0/7/130739124/5896641.pdfIn PDF document text
    • http://files.intothesails.com/uploads/1/3/2/6/132681343/suvijaw.pdfIn PDF document text
    • http://files.bikerstoreuk.com/uploads/1/3/1/3/131379014/1100317.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/1/0430/3713/0914/files/94647050503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8932/1366/files/94192634104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7841/6539/files/thumb_drift_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6369/5770/files/10479631780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4741/files/myers_briggs_online_personality_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/gukupajuwadegimovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3983/0695/files/gears_of_war_4_multiplayer_tips.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/9895274684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9102/5303/files/dosozewexumuxeniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0496/7581/files/91152830327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7236/3432/files/buccinator_mechanism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lapifobojupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3716/9576/files/legazasazolejokijag.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 5

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_off00005ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC0 5716 bytes
SHA-256: eaf547ea471fba8cc5bb79bcf1ef87d9f7657e0c5b87dbea126daecec85a3fa1
font_01_sfnt_off0000720c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x720C 10036 bytes
SHA-256: 651ffa8cb33d25bbef3d744858693da48fb9710d187fb28b4346a9daaa0aaf20

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