Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdfe005b4c57ea13…

MALICIOUS

PDF

61.3 KB Created: 2020-08-07 01:00:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7dfd912bb509aee20f1bc048724c3677 SHA-1: f972949a2d600cc9cbc35ae3aca8142136e05b18 SHA-256: bdfe005b4c57ea131995004c1ff6ee943f5335f0d08b467584ac6e6f100885d2
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The embedded URL, 'https://ttraff.com/pify?keyword=algebra+questions+for+grade+7+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Algebra questions for grade 7 pdf', suggesting a lure to trick users into clicking the malicious link. The presence of numerous external PDF links further supports the link farm heuristic.

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=algebra+questions+for+grade+7+pdf In PDF document text
    • http://files.emilytvanek.com/uploads/1/3/1/3/131382032/pamafa_wamajinimisa_vefapatukuze.pdfIn PDF document text
    • http://files.forsalepalawan.com/uploads/1/3/1/3/131381612/5405284.pdfIn PDF document text
    • http://files.nyeusiworld.com/uploads/1/3/1/6/131607163/debogeworukoxaz-xufurarudazi-matav-wagofuxusevi.pdfIn PDF document text
    • http://files.stephenlaurie.com/uploads/1/3/0/8/130873842/josusibebizevorin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5387/5357/files/rirak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/benivat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2119/5688/files/rokapekatixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/wogetomemoturosetanikujel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/83565370687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dubisetebezurazoxodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/aristophanes_lysistrata_and_other_plays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36149341097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1003/files/58562081662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7961/files/ssc_stenographer_2020_vacancy.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000998a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x998A 5428 bytes
SHA-256: 607e704f0e0349f81747919116e5506e6dc89fd714665d7470e05ea5f2609a99
font_01_sfnt_off0000abff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABFF 14268 bytes
SHA-256: 8e33bb0645c4b25f889e46b80483ed7ef7c60090d15d144b773d9fa78cdd1bf0
font_02_sfnt_off0000d981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD981 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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