Malicious PDF — malware analysis report

Static analysis result for SHA-256 95960c39557504e5…

MALICIOUS

PDF

53.7 KB Created: 2020-07-30 22:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68d4a299df9d83146e4f67dea044a2c6 SHA-1: d6ac072555418f1a6de76790ad6dffc7f95943fc SHA-256: 95960c39557504e515e39e7945d3a7b83bbe06f1280d05d78f0bda622bd43139
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating it's a link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Carrier air conditioning manual pdf', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.cc/pify?keyword=carrier+air+conditioning+manual+pdf In PDF document text
    • http://files.swagefitness.com/uploads/1/3/1/3/131381721/rirapugurebubasunun.pdfIn PDF document text
    • http://files.advanceprolighting.com/uploads/1/3/0/7/130739340/cc0d4ece039d.pdfIn PDF document text
    • http://files.in-aikido.co.il/uploads/1/3/1/8/131871980/pepunijalujeb_referu.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/1/0432/8580/7269/files/tivurudelajujuworokozuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/646721124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/69244325305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/2262885475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/7675794405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/37063191166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/16703055529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9105/8070/files/vureneworur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5251/2918/files/51107230400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1684/5469/files/74908085595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7711/5810/files/72455067561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/jajutevulodiwowuzev.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7842 5204 bytes
SHA-256: 8d51d389a13f6a793ab2d8dbb00e0e7c2a02fab2ff96da0e20701d880d607d70
font_01_sfnt_off000089df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DF 12860 bytes
SHA-256: 94e8fb6201060126814b5031c08d60c1eb3cc693966549a96e8d3189e8fffc15
font_02_sfnt_off0000b2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E9 16496 bytes
SHA-256: 4591f504998740cbb4f67c0605a1e0bbe93457aaa6e8108d9fd923078b70e9f3