Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa47fc65326ce75e…

MALICIOUS

PDF

46.8 KB Created: 2020-07-31 14:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8dc5c9f7542d9254ba35a5a3a2345f56 SHA-1: 660956704d69c60278531ea15aa08b09b76d1677 SHA-256: aa47fc65326ce75e76f476a5d47b70e4b5876f54d4a649f784e619d6c2e71a46
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'Kali linux full tutorial pdf'. The presence of a link farm further indicates an attempt to drive traffic to potentially malicious sites. The primary malicious IOC is the redirector URL.

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=kali+linux+full+tutorial+pdf In PDF document text
    • http://files.irisrabines.com/uploads/1/3/1/8/131857791/botebazezotuwava.pdfIn PDF document text
    • http://files.southedmontonchurchofchrist.com/uploads/1/3/1/8/131856276/pafuvujena.pdfIn PDF document text
    • http://files.forumarmstrade.org/uploads/1/3/1/4/131410939/db89cfb702e.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/1/0432/0234/7168/files/temagufutobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/38476536737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2782/3765/files/34794760581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/devuwegitowewatebixoneri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/vesaduzaxunotekowekesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0323/8811/files/lelavowurevekaretet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/tufafigimuxijefima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1998/5319/files/bumibefomofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7732/1379/files/71825707124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/50266250801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vijufetibumumupaxewaromuw.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_off00007ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC2 4656 bytes
SHA-256: 11681fdba228d8b05b60bb2bf7b9345dafc4423ad2ae9a2862940ba5e2fd7658
font_01_sfnt_off00008a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9D 10640 bytes
SHA-256: b833cd9d577de2268f735a7907ecc326a905544e1ff0d8aebc4b21b991efb065

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