Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f57696b2c282fd5…

MALICIOUS

PDF

50.7 KB Created: 2020-08-08 14:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6174ae85fd3d325930dc9fbcca52a39a SHA-1: 22b29aaf55a64f9869b6b5f4ce86c0a0bee2fa28 SHA-256: 3f57696b2c282fd5bae4079b6dedf8e564cd03b651a02b31b6e04d7073fbd6c8
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains a reference to the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on CDNs.

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=manual%20transmission%20stop%20leak%20lucas In PDF document text
    • http://files.karazhang.com/uploads/1/3/1/8/131859370/4203008.pdfIn PDF document text
    • http://files.benjamincarkeyreplacement.com/uploads/1/3/0/7/130776420/pumozegidofife.pdfIn PDF document text
    • http://mezivojeg.nicholastoddshumate.com/uploads/1/3/0/7/130775934/debimebopobadamomop.pdfIn PDF document text
    • http://files.jimnewmanart.com/uploads/1/3/2/7/132740541/rijolu.pdfIn PDF document text
    • http://deteta.georginaaliceart.com/uploads/1/3/1/4/131406717/8378728.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/1/0438/9024/5787/files/kazajogejutowijoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5898/1022/files/capital_accumulation_and_economic_growth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/mejosepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6929/9101/files/18772721417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8013/9423/files/ruwazepixunasodumifoxoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5957/5958/files/7710661097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/10164557716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/mmpi_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/56886908139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/70068599047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9621/files/90802342191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3909/5973/files/gilijok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/coffea_liberica.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_off00008878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8878 5148 bytes
SHA-256: 3f087a39d9b4b4bac6b7a83f78b5840facbbbd7aa6015013120d116158aaede3
font_01_sfnt_off000099f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99F5 10420 bytes
SHA-256: 1b88f2e1b086a6a3217f5c89896e3565c657bdb12198935502363ad761e3becc

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