Malicious PDF — malware analysis report

Static analysis result for SHA-256 8288dcc8d9c274b4…

MALICIOUS

PDF

44.4 KB Created: 2020-08-19 14:47:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8e6d58aea06d6bb9410538885e79be2 SHA-1: e96e2dfa65350e17dbfb08924c0da3642bab6f73 SHA-256: 8288dcc8d9c274b43cb21ae8a2714d74957950d9cc45800e96d87d7ac612cdf9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'head chef job description template'. This suggests a phishing attempt to trick users into visiting malicious sites. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms malicious intent.

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.cc/pify?keyword=head+chef+job+description+template In PDF document text
    • http://files.alanandanooshbullock.com/uploads/1/3/0/7/130738933/wobojemofe.pdfIn PDF document text
    • http://gixupob.kristenwu.com/uploads/1/3/1/3/131383652/togevupubebod.pdfIn PDF document text
    • http://files.personalhibachichef.com/uploads/1/3/0/7/130775518/ef47c65ebfc36f1.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/1/0429/0940/1254/files/retobewobexamebojivutot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/19205461063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/fudepedanekev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/lakivibumoparawul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5095/0041/files/faxelitivivoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/99640523525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/jidimasugilad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1306/3327/files/elementary_statistics_12th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/677001865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/1493563034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/84932779678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2781/4810/files/gartner_ai_report_2019.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 6

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_off00006f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1E 5572 bytes
SHA-256: 81acb1c5d449668cbf6fd2409bfa067835bcba37f2d8a770e194e87e4a8eb05d
font_01_sfnt_off000081dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81DC 10220 bytes
SHA-256: 545c9010f4d1de64f4910d22e514e53ad93cf8af8191c2b3a15ccd33f1dd36ad

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