Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f2e682fa88b99b…

MALICIOUS

PDF

40.3 KB Created: 2020-08-07 19:51:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1959f04af72bc37fb8fc30e46fccbffa SHA-1: 6cb8c125b67f9316f9e85a021d280be95fe4964d SHA-256: f0f2e682fa88b99ba287867ebc37f64c674f28e41943784ce7f2dc8d1372aafb
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains a URL that matches the malicious redirector. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate destination and potentially engage in SEO poisoning. No scripts were extracted, but the primary attack vector appears to be the redirection to malicious URLs.

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=pannes+diagnostics+auto+pdf In PDF document text
    • http://files.sarahgray.info/uploads/1/3/0/7/130775309/wibozenan-vubur-rovojoxevis.pdfIn PDF document text
    • http://files.justinpomerance.com/uploads/1/3/0/7/130739122/luxoforiko.pdfIn PDF document text
    • http://files.sofiebal.com/uploads/1/3/1/0/131070294/cb805be8a062c29.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/1/0430/4361/8969/files/lalapamavazipizipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/vovekowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/reriwidabiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/voxodijotewaxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4216/8218/files/ballade_in_g_minor_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2266/3331/files/99462701330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9172/6240/files/echo_cs_310_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6250/files/effective_communication_in_the_workplace.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9712/9109/files/pelipazot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/befid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/35362843850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/80721601380.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB6 5080 bytes
SHA-256: afc152fd40d01673cc372ee2a2a900a00f0dae4fc3c716d796628580ace56afd
font_01_sfnt_off00006011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 11500 bytes
SHA-256: 8de9809df50dc9f46146646f6e55e4750774df0b03f50fef08380bc072e699ab
font_02_sfnt_off0000849e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34