Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f92a7f27ae872f8…

MALICIOUS

PDF

39.5 KB Created: 2020-08-10 06:28:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b7d3dddd2f36df4f50bc458264cd1ce SHA-1: c9d53e8e6e2948ade62838eb8d96b1c67aeb7c2b SHA-256: 2f92a7f27ae872f8c4b5383dd3260442c850dc0d60c9e7a684492cd9a15ac014
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=science+dictionary+free+download+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF contains a large number of external links, many hosted on shopify.com, suggesting a link farm or SEO manipulation tactic to distribute the malicious redirector. No scripts were extracted from this sample.

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.cc/pify?keyword=science+dictionary+free+download+pdf In PDF document text
    • http://files.angelfacebeat.com/uploads/1/3/1/6/131606281/gerupofosepak.pdfIn PDF document text
    • http://files.warleyseniors.co.uk/uploads/1/3/1/0/131070062/de368.pdfIn PDF document text
    • http://files.jenaforryaneyoga.com/uploads/1/3/1/6/131606111/5210671.pdfIn PDF document text
    • http://files.noiinsw.com/uploads/1/3/2/7/132740606/1965487.pdfIn PDF document text
    • http://files.brandonbarrowscomics.com/uploads/1/3/1/3/131383398/laxowitupizovexuw.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/1/0430/3699/9831/files/35542802130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/gedebivawidalarujuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/jozuwunozanegotuveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/31738645897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4690/3709/files/91107480599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7091/files/31219413398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/barron_s_sat_subject_test_math_level_2_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3625/files/72380922925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4157/9420/files/vawanifuvetutapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2293/4435/files/87530475823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2295/8248/files/corpo_vivo_adonias_filho.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3991/5175/files/gitignore_for_node.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5692/2777/files/43901866098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lovukapovilelogitolosir.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FF 5268 bytes
SHA-256: 8b7180019434d8090bfca6afa06614038ad0de03b449eedfda17afc843d343d9
font_01_sfnt_off00006c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C19 10248 bytes
SHA-256: 43c7754a8537959580aca908fdb6c2253cb86b39641a8bdb78317cc20235ac6e