Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3d874e3e65fb6d1…

MALICIOUS

PDF

64.6 KB Created: 2020-08-17 07:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bf7bf772473582b24b3614acbf66ba4 SHA-1: 5075f92e2c6acbf5b287ba319cf6054f7c1b3459 SHA-256: a3d874e3e65fb6d10cd380aff3ecb0eec0d057758b8d9af6a75677588ef32154
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The primary attack pattern involves luring the user to click the malicious link.

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.com/pify?keyword=bedard+zamana+kya+jane+1959+songs In PDF document text
    • http://files.marketprotech.com/uploads/1/3/2/7/132712324/wewijes-rodedolojes-bolejigetare.pdfIn PDF document text
    • http://files.wvcarts.org/uploads/1/3/1/3/131379236/3309144.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/1/0428/2748/1255/files/weribetoxodiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/sasexobirad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3705/5393/files/movimiento_circular_uniformemente_variado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/descriptive_analysis_spss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8510/3258/files/lexofegij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/19761233990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/93325956290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/12960219336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/bexejiremilugezufiwanafib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/dojoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/44370114314.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

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_off00009a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A06 5784 bytes
SHA-256: 695f17074abe92642dc075085523d923d64fed292b8d396889b0b52e88a748b1
font_01_sfnt_off0000adc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADC5 15596 bytes
SHA-256: 4b09421d70684d1fd1fc1fa4ad4822bb97670d6f276f3aef9f73f8b56d8321a6
font_02_sfnt_off0000de65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE65 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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