Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b4e06ef6b4f172…

MALICIOUS

PDF

45.0 KB Created: 2020-08-05 09:07:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42c39e2efc60aa1066ce4d0df24ddf4d SHA-1: d6c2bd0b7d39a470448398fe36816b70acdb4f91 SHA-256: f2b4e06ef6b4f1721d87695192821dfc91a71fdd64ea1ff32a954885e5af97c0
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL pointing to a redirector. This suggests the primary purpose is to redirect users to malicious content, likely for phishing or malware distribution.

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=south+africa+constitution+pdf In PDF document text
    • http://files.ctslouisstlaurent.com/uploads/1/3/1/4/131438604/9660862.pdfIn PDF document text
    • http://files.taniamansfield.com/uploads/1/3/1/8/131871488/9260629.pdfIn PDF document text
    • http://files.growyourteaching.com/uploads/1/3/0/9/130969404/4003942.pdfIn PDF document text
    • http://files.buynorthernlightswines.com/uploads/1/3/1/3/131378942/16f5fc462.pdfIn PDF document text
    • http://files.irunursing.org/uploads/1/3/1/3/131380005/fff72a449f58059.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/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6851/2669/files/96325342561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7442/8827/files/ronuzefivutof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/zatixevape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/5571991337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/85393990196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2869/8520/files/ceruleum_field_ffxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6668/6629/files/38349959911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/53480842752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/xiruzatovuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0491/7917/files/xbox_one_ipv6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7713/1683/files/dibujos_de_calaveras_para_colorear.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AD 5316 bytes
SHA-256: 452d665d1f791c035b1e2f340acc46e57967ce47f58d43f1df4b4cea39a4894f
font_01_sfnt_off000084bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BC 10048 bytes
SHA-256: b4381cfd63aeb45b1b46ac757ee42fee20c2ca36e96f520ec692465596dc144f

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