Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f20689ce2f654fe…

MALICIOUS

PDF

117.6 KB Created: 2020-08-08 19:39:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce2ed09978da969b2cb0b495b090f260 SHA-1: 51082f14deddfb5e704ac5b1807d020333b50be0 SHA-256: 1f20689ce2f654fef0dabcfd4b7f89858ace70fb022c55613913be08daf39604
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, aiming to lure users to external sites. The embedded URL points to a redirector, which is a common tactic for phishing and malware distribution. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=manual+de+auditoria+fiscal+pdf In PDF document text
    • http://files.morningstarcommunity.church/uploads/1/3/1/0/131070161/lojodugonitite-rekadelejego-goxapujunekop.pdfIn PDF document text
    • http://files.fatbellybassmasters.com/uploads/1/3/2/7/132740552/591523.pdfIn PDF document text
    • http://files.nicoleandersonconsulting.com/uploads/1/3/1/4/131437725/6480490.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/1/0434/5066/3062/files/39464643116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0673/files/28810611396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/94467452485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/64435642989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/pierre_bourdieu_sociologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3453/2245/files/21031845464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7006/files/super_crazy_looms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0118/2369/files/rofusiligapobumubirumug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/76356671282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5699/5233/files/handbrake_compress_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/32322671716.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18412 5036 bytes
SHA-256: f842318cd3ed7feb64ac0ef6f9b8eca91349773c0692cc18f4da39c767df6ceb
font_01_sfnt_off0001953e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1953E 11068 bytes
SHA-256: a212f6e0f4afcb91ce752998f42fdb28e0f317e749bd08ce21e67732bed61fc7
font_02_sfnt_off0001baea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BAEA 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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