Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5914a1b55622b43…

MALICIOUS

PDF

44.8 KB Created: 2020-08-06 17:56:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b804a79cece4f4f6f67cf3e2cded1a7 SHA-1: 8c37bd958e58c11c0411a5db8fbd79011411f79f SHA-256: a5914a1b55622b4304029273e3579e9cc13a5d32deb1a56cd87b19270ad5853e
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Bibel pdf einheitsübersetzung download', suggesting a lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bibel+pdf+einheits%25C3%25BCbersetzung+download, which is likely used to redirect the user to a further malicious destination. The presence of numerous links to Shopify domains, while some are benign, suggests a link farm technique to improve search engine visibility for malicious content.

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=bibel+pdf+einheits%25C3%25BCbersetzung+download In PDF document text
    • http://delupuze.baywestps.vic.edu.au/uploads/1/3/2/6/132695278/wegegatonesil_gonazazuneg_fesapobanig_livug.pdfIn PDF document text
    • http://files.openmindimprov.com/uploads/1/3/0/8/130814056/7fe77a2.pdfIn PDF document text
    • http://files.dalycitytowing.org/uploads/1/3/1/4/131452903/dibosolomo.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/1/0437/3128/8216/files/43861724879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/votelusojewamamoxef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4610/8312/files/26326230491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3100/1250/files/71859437526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/benepulenofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6649/0006/files/1189726395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0953/2316/files/pudusexojamusavibar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5989/4689/files/30148250166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9716/0866/files/posenomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8019/7031/files/hemostasis_mcq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/xijefoxi.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 4

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_off00006bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFF 5752 bytes
SHA-256: a0d5d79458316ef15acff25432b2acbd6edf56c133a0006d4d2eab7fa351abad
font_01_sfnt_off00007f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F71 11352 bytes
SHA-256: 196dadef540f0d6ad1b230b457e9654cc9b4b55a196ed4c0424a62ac183bb2b6

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