Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c7ad1a9de12a40…

MALICIOUS

PDF

38.7 KB Created: 2020-08-08 05:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d656ac95987830e6198e556fe83cc73a SHA-1: 17015434c1a8a5950844875345704f4e18ce0f56 SHA-256: f1c7ad1a9de12a4018874bb92c7649a70a7e52b3f52cdf1a0975b8e0b08daa74
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including one identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to educational worksheets. The primary malicious link, https://ttraff.com/pify?keyword=cause+and+effect+worksheets+for+6th+grade+pdf, is designed to lead users to potentially harmful content. The ML classifier strongly supports the malicious nature of this PDF.

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=cause+and+effect+worksheets+for+6th+grade+pdf In PDF document text
    • http://files.fialafumeorganics.com/uploads/1/3/1/3/131383467/detar-nupimuwe-kowigazoton-duwuzizuwewawi.pdfIn PDF document text
    • http://files.futurespresent.com/uploads/1/3/2/7/132710780/7871764.pdfIn PDF document text
    • http://musewafuj.coastalcruisetravel.com/uploads/1/3/0/7/130776031/3561138.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/1/0431/2337/6277/files/analysis_and_design_of_algorithms_by_udit_agarwal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7795/8816/files/juxamifiloti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/cartagena_protocol_biosafety.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/xemidubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1929/files/fozilojunagakasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/66299644718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3133/6859/files/list_of_commands_for_command_prompt_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3113/3340/files/fizapupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujipipokumamidepuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/mesojexalabilagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/79356107527.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_off00005848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5848 5600 bytes
SHA-256: d7e71d7be36e2dc1e5d427f5fcc95474205b165fa3d8f5288dd7059e5e029ad2
font_01_sfnt_off00006b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B67 10060 bytes
SHA-256: 58845d939d645aa787e5b75185fe2465d7914185bd703f8f06e142e33e116a98

Open this report in the interactive analyzer, or submit your own file for analysis.