Malicious PDF — malware analysis report

Static analysis result for SHA-256 433c80350ad1f8e9…

MALICIOUS

PDF

277.8 KB Created: 2020-08-06 21:38:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b9baabb56694da028ebced22d6eff724 SHA-1: 44b2ecca9c51737afa8634ed38f792652de44eb2 SHA-256: 433c80350ad1f8e94ed2137573423639467bd37e485d8667f94b05df018a696f
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=tenancy+agreement+form+in+nigeria+pdf'. The document body, though heavily obfuscated, also contains this URL. This indicates the primary goal is to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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=tenancy+agreement+form+in+nigeria+pdf In PDF document text
    • http://files.lighthousejackson.com/uploads/1/3/1/3/131398242/xilibikaje-forirokilemo-nerujipab.pdfIn PDF document text
    • http://nakelugaf.alexiajazz.com/uploads/1/3/0/7/130739385/9889197.pdfIn PDF document text
    • http://files.debudgetheer.nl/uploads/1/3/1/4/131453081/fowap_tevezuxaloke.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/1/0429/3197/8403/files/fulepasum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/56104749121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8217/6917/files/bitwise_operators_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/20699197820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5197/4818/files/field_attachment_report_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4895/1194/files/64539665063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/66295736028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9656/4131/files/135328534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/80714801824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/44054823595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3059/4204/files/26189242067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/best_to_word_converter_ocr.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 1

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_off0003fd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FD20 5316 bytes
SHA-256: 304d28c7b2e87ad669695cbd97d73297741b60dba769362b4d759a1608861b01
font_01_sfnt_off00040f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40F30 18500 bytes
SHA-256: 51554ce018eb385e1655620851964ad0e6cd1cca86ed2efc35693c5647e1373b

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