Malicious PDF — malware analysis report

Static analysis result for SHA-256 3057697e81163364…

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 22:30:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 154e7c42bd2e5dff7817d61780d2e97c SHA-1: 084b1e0edab969734777676cda999f3422c09159 SHA-256: 3057697e81163364239771b5ecef9eb11cb8745d243d2c34432008edfe678300
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=2020+calendar+printable+pdf+weekly, which is likely used to deliver a secondary payload. The document body itself contains obfuscated text and the malicious URL, further indicating its intent to lure the user to a harmful site.

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.ru/pify?keyword=2020+calendar+printable+pdf+weekly In PDF document text
    • http://files.ibew23.org/uploads/1/3/0/7/130775952/491866.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/1/0429/8558/6849/files/xepodisajosoripofelorab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/la_revolucion_nacionalista_de_1944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/la_amistad_castigada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5218/7298/files/physical_science_grade_11_study_guides_caps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65233410578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/82485357039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2870/0571/files/trumpet_voluntary_noten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/mathematical_models_of_communication_channel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0278/1083/files/dinotevebegugitiwukatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/binomische_formeln_rckwrts_bungen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/shingeki_no_kyojin_torrent.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_off00006b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B50 5548 bytes
SHA-256: 6b6b25448a4339c2ae6d2e52c55a6c785fb32b360f557aeff51a80c2bbe8a350
font_01_sfnt_off00007e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3F 10380 bytes
SHA-256: e57c13e26f659abc8e707777b866427ad91f40671ea345881eb91c54f438c3f6

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