Malicious PDF — malware analysis report

Static analysis result for SHA-256 917a7b8d4a89d9c8…

MALICIOUS

PDF

47.9 KB Created: 2020-07-27 13:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4e9e2df4ae53cb87644e1c081e0d0c5 SHA-1: e6d6242706f456a28582a10d72d0a28028f3633e SHA-256: 917a7b8d4a89d9c825082a86bab7b3d82ec8dbe4b319bc5aaa4f62528464eb23
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to distribute content or traffic. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains text related to a 'workbook pdf', aligning with the 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=boundaries+in+marriage+workbook+pdf In PDF document text
    • http://files.gladeviewtowns.ca/uploads/1/3/1/4/131438418/9838740.pdfIn PDF document text
    • http://files.vanguardskirmish.com/uploads/1/3/1/6/131637316/nulidafiluxoz.pdfIn PDF document text
    • http://files.fitnessdetermination.com/uploads/1/3/0/7/130740592/vurudelejo.pdfIn PDF document text
    • http://files.tomboy-pretty.com/uploads/1/3/0/7/130775232/6006005.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/1/0433/6300/8664/files/57970093044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/tizavojubivudamojefapewit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9791/3512/files/vibuvuxipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/nimijisato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9054/files/98205027629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/zemokomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/16910965031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2630/9535/files/99103396788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/fuwebosakujewasaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/zokojibinarulogakujejif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/xuzowuxigaloxekefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/29661100180.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7985 5476 bytes
SHA-256: 0cb5458d11ef42ba3f0dc9d46d439ca99d8d77ffe52e768814783064ff9b3107
font_01_sfnt_off00008c1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1D 10608 bytes
SHA-256: 34b07d7228fe3bc9b234a6c72dc1aa9558b03c2e004a8dd3f56db75168a3322d

Open this report in the interactive analyzer, or submit your own file for analysis.