Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f482467e37dd54e…

MALICIOUS

PDF

63.5 KB Created: 2020-08-03 02:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a73f84114de49cd9d1badd197420fd9a SHA-1: 778841095f1eac1e9469ea0b8ef3d2b61f131cee SHA-256: 3f482467e37dd54ebb5476ded23ce3a281328e55f6b323ad896e25a6fd56e540
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1071.001 Web Protocols

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.ru'. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed as an advance-fee fraud, likely involving a prize or parcel delivery. The presence of a malicious redirector suggests the intent is to lead the user to a phishing or malware distribution 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=combine+rows+in+r In PDF document text
    • http://files.evesartistry.com/uploads/1/3/0/7/130739802/xariregi-fibebupolutebof-lisun-gexifivapuraf.pdfIn PDF document text
    • http://files.sipanddrift.com/uploads/1/3/1/3/131379217/bopozi.pdfIn PDF document text
    • http://files.mrsignworks.com/uploads/1/3/0/7/130738620/vigonoselarap-nuwagimoxe-pamitini-nifad.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/1/0438/1776/2973/files/c_windows_system32_drivers_etc_hosts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3609/files/vinojufeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/62942134956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6147/6504/files/diwasirozogegifisuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/wuwukosedupatelen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/4687508823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4587/8950/files/10083073647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/skyburners_annex_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2031/2991/files/98647286740.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_off0000ad30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD30 4728 bytes
SHA-256: 8c684a87a73701e0e5f4a5d7276dc6a91415f88c6466f5821c3ccab36ab2ab77
font_01_sfnt_off0000bd37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD37 16828 bytes
SHA-256: a2127f0fb5a9dce9bffbf5c9c648c2201c2c3ae0f77edb49e8cd6a52ed8c9998

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