Malicious PDF — malware analysis report

Static analysis result for SHA-256 a92dc0f096689d71…

MALICIOUS

PDF

44.6 KB Created: 2020-07-31 14:33:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1841439ce82d91e7a8be034dc1a94d6a SHA-1: 6086c4afdcc4c7dd59f2bd559b16753d873eca39 SHA-256: a92dc0f096689d7188db08673575ba1cf8105fb23d11a07cf7d6147df372e2b3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to 'drugs acting on autonomic nervous system pdf', likely to entice users to click the malicious links.

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=drugs+acting+on+autonomic+nervous+system+pdf In PDF document text
    • http://files.workshop44.org/uploads/1/3/1/6/131606368/zapegexefomalap-rasolamemiku-werasutivabeke.pdfIn PDF document text
    • http://files.michaelbruley.com/uploads/1/3/1/8/131858540/6851515.pdfIn PDF document text
    • http://files.hopewithstacy.com/uploads/1/3/0/8/130874566/85c386bc898b8d.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/1/0433/5697/9351/files/pazobukewawodik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3809/7051/files/razipevezewaretuzisapez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3529/3856/files/54049988137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/najujitanixujegejaluse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7536/1178/files/xajujoxopeviwuwabarilase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/panimul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0751/6565/files/bomobafokag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/texevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/nafilexegewofumaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/24642071051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3636/8296/files/25585837302.pdfIn PDF document text
    • https://medlineplus.gov/autonomicnervoussystemdisorders.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000714d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714D 5488 bytes
SHA-256: 0833547fb2af11e55dbe9b2e117b0d4a248284c61db136c8dc9de00e250e84d2
font_01_sfnt_off000083ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EC 9740 bytes
SHA-256: 4e0f940428a6db47d2b28076faa66c314d19bc69b4fc73086dbf38b63353ee7a

Open this report in the interactive analyzer, or submit your own file for analysis.