Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a1c4d42c8d41828…

MALICIOUS

PDF

72.2 KB Created: 2020-08-24 12:22:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cafba589719d2ac2ad354c032dc7dd00 SHA-1: 7a5a2828ddb66af90115d03f2066c492f7815a55 SHA-256: 3a1c4d42c8d41828b04e00ed5f6ccc12b524f79c3776d30dd70ac47a9590d3c7
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found by heuristics. This suggests the document is designed to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

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=project+governance+template+ppt In PDF document text
    • http://tefaxida.selflovedetox.com/uploads/1/3/0/8/130874601/5290412.pdfIn PDF document text
    • http://files.weferlawoffices.com/uploads/1/3/0/8/130873717/bomel_nisuviw.pdfIn PDF document text
    • http://files.setsunlimited.com/uploads/1/3/1/4/131408344/vawamobijozaxo-beraruzobikawer.pdfIn PDF document text
    • http://files.elmscarehome.co.uk/uploads/1/3/2/7/132710779/8547421.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/1/0438/7789/2264/files/bsc_physics_syllabus_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/66431037269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2046/files/ataturk_reforms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/apcrbc140_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/clownfish_care_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1872/1192/files/deduwawelokenefodujamem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/lelomovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8330/files/58265213828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0514/1411/files/nodugebotumipumudaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1158/7752/files/pavirufawiwebawawuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/turn_list_into_string_python.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_off0000cebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBB 5212 bytes
SHA-256: 3e97f88bc1626cdbee24408855a8363d5e337fb291b1468a64bf90db27eae73d
font_01_sfnt_off0000e06f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06F 16588 bytes
SHA-256: ed2edf4f2e4496f5661a64b7519195ab2c509139adfc5882aa653d40ff6a7552

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