Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec47db31dbac2a4…

MALICIOUS

PDF

41.5 KB Created: 2020-08-11 05:51:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 047adc0af45d0ca66fbb7530841749a6 SHA-1: cb7fd2538645955094c462fcaa71b1094868d881 SHA-256: 1ec47db31dbac2a43ac4cf8ddc56c4522a47b01fe051e153a063178866f38d71
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=encephalite+a+vih+pdf', is identified as a malicious redirector. The document body contains garbled text but includes the malicious URL, suggesting the document's primary purpose is to direct users to this malicious site. No scripts were extracted, but the heuristic firings strongly indicate a malicious redirection attempt.

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=encephalite+a+vih+pdf In PDF document text
    • http://fuzawifa.smallpawsbiglove.com/uploads/1/3/1/4/131438397/cfbac66e75.pdfIn PDF document text
    • http://jetajide.rogeradamsmastertrainer.com/uploads/1/3/1/6/131607062/6238330.pdfIn PDF document text
    • http://pajabe.medinacares.org/uploads/1/3/2/7/132740494/labegeritixo-xademirili-tumokipevuroz.pdfIn PDF document text
    • http://files.teacher-on-the-road.com/uploads/1/3/0/9/130969404/1165df7ba7685ba.pdfIn PDF document text
    • http://files.rattlesnakesafe.com/uploads/1/3/2/6/132682040/f3dcb.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/1/0429/4357/8278/files/channels_of_communication_in_an_organization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1040/7069/files/lebodijavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/jivorokaxigusulugina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6385/9617/files/bharti_axa_car_insurance_policy_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/5343926801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/26587366249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/91059396409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/86127876609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/agrochemicals_agrimoon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5543/9263/files/schema_amplificateur_de_puissance_1000w.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/gujoruworod.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
🗂 Part of campaign: rattlesnakesafe.com 6 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F5 4988 bytes
SHA-256: 3f3d30310d2e6213edf379ce519754a033c9ed0f8e014e56305bfdf19f089189
font_01_sfnt_off000075ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EA 10368 bytes
SHA-256: 00f2a791e8eff7098c72cd884517b383772771d1ebb5cbbd77e6ecfa5524b697