Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bcc939b6e48ebe3…

MALICIOUS

PDF

40.9 KB Created: 2020-08-03 18:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99b45021f7b4629dde9eb01e7cb1a922 SHA-1: 72dcee98cef278a7d5d2f1df649f5764347703cf SHA-256: 9bcc939b6e48ebe3d3c97d7ba100c17a69bf0716298276aadbf421d7346e97b1
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically pointing to a redirector URL associated with malicious activity. The document body, though heavily obfuscated, contains a reference to 'apc smart-ups 1500va pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a link farm heuristic further indicates a high likelihood of malicious redirection.

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/wb?keyword=apc%20smart-ups%201500va%20pdf In PDF document text
    • http://files.kimmisenerdunn.com/uploads/1/3/2/3/132302780/lekidisigaz_rilinubideroka.pdfIn PDF document text
    • http://files.transitionlinlithgow.org.uk/uploads/1/3/0/8/130814055/somakoxegis.pdfIn PDF document text
    • http://gokux.cleanwaterforlavallee.org/uploads/1/3/1/6/131606490/3759292.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/1/0429/3217/5014/files/jotiziroleputajasorotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/sujiwewawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/77226621862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6493/3014/files/talufukurukutugopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/sipidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0386/1416/files/79094088121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/98760259090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/valakegig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/10466236737.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 1

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_off0000568c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568C 5668 bytes
SHA-256: 787726344a89eb7dc3ffc4b25fc9523d7f0183d3f1af6bd1d77b2e8ee438a371
font_01_sfnt_off000069d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D7 14600 bytes
SHA-256: 29a03f7ef9c941e93a158ed947e276f910c0d04803a7223f366c0ee9cd2e4a1f

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