Malicious PDF — malware analysis report

Static analysis result for SHA-256 d23e100de5cd4582…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 12:43:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98d67ac200ca257863a6d082b2f41e0a SHA-1: c3e794d14f80044999635f93bbb0af152d9e3f1b SHA-256: d23e100de5cd4582f6c78a6c12f7b961e3871452b69102adf942797be2221449
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=random+real+us+address', which is likely used to funnel users to malicious sites. The document body contains obfuscated text and references to the redirector URL, reinforcing its role as a lure.

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/pify?keyword=random+real+us+address In PDF document text
    • http://files.rottencollective.com/uploads/1/3/1/4/131482976/waxibun.pdfIn PDF document text
    • http://files.mercedesclubindia.com/uploads/1/3/1/1/131163959/dunamezat.pdfIn PDF document text
    • http://files.76bulbs.com/uploads/1/3/2/6/132695455/lulowuturedagasepep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/labokobezar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1097/4108/files/75598151250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/nimigumudaremobaxosizuxox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6917/3923/files/paul_bunyan_communications_webmail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5585/6281/files/how_to_throw_exception_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0499/2408/files/sidaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8725/5970/files/wugemazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1710/7616/files/wemudosuvoverigopure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31492874922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/kojevoxutaravuxizevesobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/14315458677.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 4732 bytes
SHA-256: aab90bd1aecec3d598d4637b6f0803901ca8c4335833ec172e134a17694cac66
font_01_sfnt_off00006fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE4 12128 bytes
SHA-256: ff51db897b9ecfef9aea4224395603767e3223e69f7812ff916ea48979c5c692
font_02_sfnt_off000096cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96CD 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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