Malicious PDF — malware analysis report

Static analysis result for SHA-256 349b986045b229b4…

MALICIOUS

PDF

48.2 KB Created: 2020-08-23 03:26:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b148bec78ced18ea48de8d974b1fcd6b SHA-1: 2ef9238ed5b8fb7a4839e269b69c11812a7e50f1 SHA-256: 349b986045b229b41be462783a18352f13790dc8a42857a8c505fcabce5265fb
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a useful resource, but the primary link redirects to malicious infrastructure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this, and the ML_NYX_PDF_MALICIOUS score indicates a high probability of malicious intent. The document body text, though garbled, contains the lure text "Gantt chart template simple excel" and the malicious URL, suggesting a social engineering tactic to drive traffic to a malicious site.

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=gantt+chart+template+simple+excel In PDF document text
    • http://files.bhameconsoc.com/uploads/1/3/1/3/131379035/5d35b1ebe.pdfIn PDF document text
    • http://pudodo.yabbadobrangus.com.au/uploads/1/3/1/3/131380550/3416402.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/1/0431/1285/7754/files/virtual_earth_worm_dissection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokavurovapipemekimisam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/divisiones_de_la_ecologia_autoecologia_y_sinecologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1098/2041/files/24678004675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4314/files/14699972514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6717/1223/files/bed_box_springs_vs_platform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/story_central_3_activity_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/nuzelirazamivitobadixin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6716/files/riwuwofopozosaguxejiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/zulomuxafosozipunawo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75CD 5272 bytes
SHA-256: b403966aa03ccb74c6e45407f23c48ce063b8bee89aa045620cc21c9781b2a10
font_01_sfnt_off00008785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8785 2188 bytes
SHA-256: ee448ea0b942f8e3cc7ddfe0d5dc4c7c6f0a1a62bc92910c35c663b4662f014c
font_02_sfnt_off00009189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9189 9996 bytes
SHA-256: a0d927791094be90fdb2542e6ce719ec295369402f93b73c30a3e4805b02eff0

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