Malicious PDF — malware analysis report

Static analysis result for SHA-256 26ecbf0d5d2c771c…

MALICIOUS

PDF

55.2 KB Created: 2020-08-24 18:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 989a424166333b385a04948e36c430f3 SHA-1: 367585e035b987deffde2bb5894dbc1d643366aa SHA-256: 26ecbf0d5d2c771cb083a011577b8e3a3317d77682ef62cc75c379e1e44d4c9f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=internal+audit+group+reports'. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning or to obscure the final malicious destination.

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=internal+audit+group+reports In PDF document text
    • http://files.tylerhomesnj.net/uploads/1/3/1/4/131484133/ae40232.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/1/0428/5795/5494/files/wiveguzenefixav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6119/0554/files/31427504413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4206/1986/files/hdfc_mutual_fund_change_of_nomination_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/fevimewojimepirevamokuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6089/5384/files/consumer_reports_apple_watch_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4261/9035/files/27597320179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6042/files/nipodanafivoberi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0102/7493/files/zeborutapifixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2666/1023/files/xevipunesup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4986/8703/files/38532612786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5621/2642/files/statism_and_anarchy.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 2

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_off00008dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD1 4948 bytes
SHA-256: 3a336797b1275f6067d06c6c2c1f31314311c87273c74618b23124d88592334e
font_01_sfnt_off00009e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E9E 10176 bytes
SHA-256: 1fed6fc78aee5ba6cf2a2ef9583da8be752ccfeb0be66062bd719c03821304bb
font_02_sfnt_off0000c17c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC17C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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