Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e1d179a2af42a71…

MALICIOUS

PDF

49.4 KB Created: 2020-08-25 00:10:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27315f939429184513d9a5080aa42e79 SHA-1: 212d28349b406892e57a310be7a864e6b99e7998 SHA-256: 4e1d179a2af42a71ab825f4c1198addbfad96cdb72c258cefe8aab769c74963b
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=coliform+bacteria+in+water+ppt'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/8096/5534/files/supemupaxelunaluroxuka.pdf'. The document body, though heavily obfuscated, contains fragments of the malicious URL and urgency-related text, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=coliform+bacteria+in+water+ppt In PDF document text
    • http://files.evangelistictempleofiam.net/uploads/1/3/1/4/131438113/lirula-sozefif.pdfIn PDF document text
    • http://deteninip.drylandag.org/uploads/1/3/2/6/132696067/fdba5b643ff.pdfIn PDF document text
    • http://files.sandpipermag.com/uploads/1/3/1/4/131453623/72fac911c325a9c.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/1/0433/8096/5534/files/supemupaxelunaluroxuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1197/9939/files/7th_grade_math_curriculum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/xoselarozewuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3452/5352/files/naxiravaxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/feresokogonopidakupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4253/6604/files/19827407390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/comprendre_le_marxisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/lipujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/69125150249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/6405/9033/files/wenogapatuvuzen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/20547861699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/pusixu.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_off000083d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D1 5120 bytes
SHA-256: 2c597f3963a0969188035c5a68bdf323f1e3a2a2e39da7f4ccd8fdbca60f87d8
font_01_sfnt_off00009535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9535 10340 bytes
SHA-256: ea99df8479aa99d850cc0e4f26d9a1fee769d73873e701f33c09e8de1d709ac4

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