Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc8ed7d6b2cff69…

MALICIOUS

PDF

44.3 KB Created: 2020-08-09 11:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89ae60c8150ad020b1ca4740db15324f SHA-1: bbe308a56e3aa35816f710316123d1ea7173f3da SHA-256: 0dc8ed7d6b2cff699738b95cb6e0526b5a266674a140bbed5d413d57d19803f2
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector service, which is a common tactic for phishing and malware distribution. The document body, though heavily obfuscated, contains text related to 'advantages of internet in education pdf' and a URL pointing to a redirector. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating an attempt to distribute malicious content or phish users. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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=advantages+of+internet+in+education+pdf In PDF document text
    • http://files.drbrendaeabbey.com/uploads/1/3/0/7/130775252/2515404.pdfIn PDF document text
    • http://files.westfieldbouncehouserentals.com/uploads/1/3/1/3/131384789/4605166.pdfIn PDF document text
    • http://gepika.rideon365.com/uploads/1/3/0/7/130740178/3464387ba3.pdfIn PDF document text
    • http://sasibaz.fireworksstoreonline.com/uploads/1/3/0/7/130739654/boxebibod.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/1/0429/1022/0447/files/tefoxobupowotodokerebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7256/files/91843511388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/rukakiwajapiwokagibego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2466/2173/files/xewosimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2519/5427/files/anaximenes_of_miletus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/61984075245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/winoxilerudizixadejugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9371/1261/files/30117023331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/melafasotak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1034/2564/files/ginirajasutoruxozobate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8167/files/22056937530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetelonum.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 8

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_off00006d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8F 5340 bytes
SHA-256: 1f47a0a6bc1817d0296ea9a45fd2eaee030747f2b4eab533492b116a51919fdc
font_01_sfnt_off00007fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDA 11348 bytes
SHA-256: 734eae555556f65a6c8cfa1630dc68834ca5dd035012a80ad6fa7488e4dacd23

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