Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3a2084ada32e73…

MALICIOUS

PDF

37.2 KB Created: 2020-08-19 12:27:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce4651c10a0098e9a05ce336c4eca2aa SHA-1: f9d7e1d159948b8099f291fb69b49a366e2bed18 SHA-256: 7e3a2084ada32e733d0adc6ee31b0041e3144b1b880ba2a02888d53b1a0c1b25
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to redirector infrastructure like 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting a phishing or scam lure. The ML classifier strongly indicates maliciousness, and the heuristics confirm the use of redirectors and link farms for SEO-based distribution.

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=effortless+english+full+pdf In PDF document text
    • http://files.northwestskatersunited.org/uploads/1/3/1/4/131406036/demanala-pidifemos-xolerawinij.pdfIn PDF document text
    • http://kamona.bonescanoeandcampground.com/uploads/1/3/1/4/131409090/7509781.pdfIn PDF document text
    • http://files.thepowerofampersand.com/uploads/1/3/1/3/131398204/779c45db630eb.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/1/0428/9767/0303/files/62602679106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4223/4791/files/livaxiniditufifijaladod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/10480752587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/fizajukifajutesij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3204/9824/files/bear_witness_crossword_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/buxetetobukenojulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2236/7390/files/kiweparovitixejunaves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/mebatarawoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/swot_analysis_of_adidas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/propositional_logic_in_discrete_mathematics.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 3

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_off000055d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D0 5052 bytes
SHA-256: dfb02327b76913c6f5ebeec59c24433fe63098e22af2cdfc400341122e3f903e
font_01_sfnt_off000066f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F7 9804 bytes
SHA-256: c2f0da673ac31ce3eb1af6d268ef7bf06ac544c06c505384b271cd6fd00782e6

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