Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae659329fd76d2d…

MALICIOUS

PDF

120.6 KB Created: 2020-08-25 15:06:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9f3156ce1b2e234c05902bf5e4b16ea SHA-1: ad2d3b845197497f44613f0af91348892d9a1a07 SHA-256: dae659329fd76d2d1a7a695304a4eef49787a406b5ceacf48b8bee4f88046f92
194 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, specifically mentioning lottery/prize language and parcel delivery requirements. It also contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same malicious URL. This indicates the primary goal is to trick the user into visiting the malicious URL, likely to download further malware or engage in phishing.

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.ru/pify?keyword=chronic+myeloid+leukemia+guidelines+uk In PDF document text
    • http://files.hardinsburgbc.org/uploads/1/3/1/1/131164462/08a737d8e9f9219.pdfIn PDF document text
    • http://pejefa.achievewe.org/uploads/1/3/2/7/132740930/rogebapinatibo_bodebumirodi.pdfIn PDF document text
    • http://files.alicehorn.com/uploads/1/3/1/4/131452942/gebidupewenuno.pdfIn PDF document text
    • http://zapukel.swiminfoct.com/uploads/1/3/0/9/130969596/wofazinipasofig-vinixod-xewoxuv-nimodiruzoki.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/1/0435/2724/1887/files/adsorption_kinetics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0660/5981/files/faliji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3959/6454/files/32271141368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4120/8992/files/42246124484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/nitifurowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/vekuzavul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/22441882585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/swing_trading_candlestick_patterns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/tekowokesemijuxotokibaman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/xipakutizenokowatuwumoriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/81315291691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0997/files/68297768577.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00019122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19122 5424 bytes
SHA-256: 453795a22864c13e56b752e637bc282511768cc775dd9149e374f1030712d9d4
font_01_sfnt_off0001a367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A367 16260 bytes
SHA-256: f76d54d67f11520748767c83277dd36a5738fb3b554eee711c05d6f8fca6d710

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