Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de9bd61ead33ced…

MALICIOUS

PDF

43.9 KB Created: 2020-08-25 00:29:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 830be91c262ccd4d2c79c6171da87755 SHA-1: e00288be9cc2eaa5434734eb7b3085b3be4676ec SHA-256: 0de9bd61ead33ced4b7f757bb0635f9a8600588475d3c1f6bc5b112b736cc3a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that point to a redirector URL, which is flagged as malicious. The document body text, though garbled, includes the same redirector URL and mentions 'Call forwarded message android', suggesting a lure. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely for phishing or scam purposes.

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=call+forwarded+message+android In PDF document text
    • http://files.andrologyamerica.org/uploads/1/3/1/0/131069789/6ab1775.pdfIn PDF document text
    • http://gomiw.resources.norledgemaths.com/uploads/1/3/1/6/131606617/vojivusunowiv.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/1/0431/7783/6702/files/60855780173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/cds_2020_1_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0100/1630/files/suwebezojavegizefubuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/bifidobacterium_bifidum_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7057/1942/files/fast_swish_sound_effect_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8034/3961/files/67451380574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1080/9256/files/xiguxutuliriwadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2047/3752/files/harrison_cardiologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/bofupuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2176/2723/files/vigiza.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 2

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_off0000609b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609B 5052 bytes
SHA-256: 385efec7fa38b74c27f7fb7717a0288776ce8bedc409c9fc3f5de04a93472f52
font_01_sfnt_off000071bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BD 10220 bytes
SHA-256: 4c0f89622284ad3ffce5379e644c849d47e286b9ee231a0728cebf867e32b1c4
font_02_sfnt_off000094a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94A8 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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