Malicious PDF — malware analysis report

Static analysis result for SHA-256 132efdbb4971776c…

MALICIOUS

PDF

42.5 KB Created: 2020-08-14 21:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2021cdb8a5cf3ff3750fa06d12d57f8 SHA-1: 09fd25e9d0daeb84e327ab1864b0c79da35d8e67 SHA-256: 132efdbb4971776c4ba87913f2aee0c133fae4ae41a842204377a8a975526c74
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and redirects to malicious infrastructure, identified as a phishing lure for job descriptions. The ML classifier strongly indicates maliciousness. The embedded URLs, particularly the redirector 'https://ttraff.ru/pify?keyword=administrator+job+description+template', are the primary indicators of malicious intent, likely leading to 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=administrator+job+description+template In PDF document text
    • http://files.damselflyyogaspa.com/uploads/1/3/1/8/131871980/417455c1b959a9d.pdfIn PDF document text
    • http://xejodiful.burienlittleassembly.org/uploads/1/3/0/9/130969813/4581235.pdfIn PDF document text
    • http://files.love4picnic.com/uploads/1/3/1/3/131398129/xiwosiw.pdfIn PDF document text
    • http://files.schrockhampshires.com/uploads/1/3/1/4/131409442/pufepazes.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/1/0437/3980/7893/files/luxeworobenimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3531/files/pajedipubifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4724/7263/files/2020_buick_regal_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5235/8049/files/xitazosudivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/51765816039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/bebokefuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0305/2191/files/valilipepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4997/5961/files/tejakofuborasarareku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1244/7652/files/metodos_anticonceptivos_definitivos.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 6

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_off000061e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E4 5424 bytes
SHA-256: 0a7dfe716bf3e410a761e764ed2e2a528281a0776f19d69b6ad79f85628b2ecf
font_01_sfnt_off00007431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7431 13028 bytes
SHA-256: d780fc735ac7a21fd51fbd717be06ced705a071a800be8c50638f946ac638a9d

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