Malicious PDF — malware analysis report

Static analysis result for SHA-256 142a0e228caafcfd…

MALICIOUS

PDF

55.5 KB Created: 2020-08-12 15:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7ad3eb280533588ece185fb1642f94f SHA-1: 38787f40471fa31cc9253da65937f6d98601eae5 SHA-256: 142a0e228caafcfd45e4f9c7afde55b9072f03485f29e4b73cf8b70e5e464149
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though obfuscated, contains text suggesting a lure related to 'ansi code pdf download' and includes the malicious redirector URL. This indicates an attempt to trick users into visiting a malicious site, 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.com/pify?keyword=ansi+code+pdf+download In PDF document text
    • http://files.stjohnspreschoolseaford.com/uploads/1/3/1/4/131483305/448576.pdfIn PDF document text
    • http://files.linhaygallery.com.au/uploads/1/3/0/7/130739871/tixizafubepemon.pdfIn PDF document text
    • http://files.follidaygallery.com/uploads/1/3/1/4/131482962/bifotoxozavoza.pdfIn PDF document text
    • http://files.bhspantherplayhouse.org/uploads/1/3/1/4/131453288/rekubitoso-risazafemuxofag-raruke-lufara.pdfIn PDF document text
    • http://files.pfcmooremess.com/uploads/1/3/0/7/130776072/65264bc54.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/1/0434/5485/7369/files/biloxi_blues_play.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2259/3698/files/88583773409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/35221264404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/94849076626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/zugabopesajuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/social_media_management_proposal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/advanced_mathematics_an_incremental_development_solutions_manual_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9469/4304/files/95492004020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2946/2165/files/manual_weed_wackers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/nupitodapotutadug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3577/6408/files/6564627068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/dosatidizutiwok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vukabisozudetilo.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_off00007242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7242 5136 bytes
SHA-256: 7c6928fb24607a95b4fc6a00720a54bb7e8e67d91ab2809b536513c0d62ceb89
font_01_sfnt_off000083dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DD 26284 bytes
SHA-256: 37245fce14ae0433243766642a48fc3e2e583f35c70aaa92b8632fc663105050

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