Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecde9361483a4a47…

MALICIOUS

PDF

44.4 KB Created: 2020-08-16 19:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a617b8b224876a548b6780df85940aa SHA-1: 42637551486b2a598cebbcc33a04d77be9118b35 SHA-256: ecde9361483a4a47bf0d278d4d16fa07e41a621bebaa2b240a8201d7e769bf7c
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=streaming+video+recorder+for+android'. This URL is likely part of a phishing or scam campaign designed to trick users into downloading malicious content. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The presence of a large number of external PDF links suggests an attempt to manipulate search engine results or distribute further 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=streaming+video+recorder+for+android In PDF document text
    • http://files.glaquaponics.com/uploads/1/3/1/1/131164075/mosevelobiwub_xuwobadalo.pdfIn PDF document text
    • http://naroz.healthydancercanada.org/uploads/1/3/0/8/130873951/59f2f6.pdfIn PDF document text
    • http://files.aaichstudio.com/uploads/1/3/2/6/132696117/tujero_mumozumaxejapid_wakiwosek_xubifipotud.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/1/0434/6652/2790/files/pexenuderobozibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/89637935028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/christmas_organ_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9220/5978/files/66365739685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/necron_6th_edition_codex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9170/5500/files/the_ak_47_kalashnikov_series_assault_rifles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3381/1351/files/books_every_high_school_student_should_read_before_college.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7447/6440/files/radakezarawiretova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/4650446589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/17790545559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4630/4933/files/47070083457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4204/files/tuvos.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 6

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_off00007025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7025 5296 bytes
SHA-256: 3aa72bd072a2685ea3db821f6e4187e770b2b51ba90254416f0c0d91e872e374
font_01_sfnt_off0000820b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820B 10032 bytes
SHA-256: 1979bb2379348d0d1beef32097856788c3283262f13f6aeda8a15066a03a44ff

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