Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a8055045d09ba1c…

MALICIOUS

PDF

100.0 KB Created: 2020-08-06 18:22:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 928ec6bc3d631a66f54b7e704a194609 SHA-1: de509a30217c19c12d9c52bde2650879ac894c0f SHA-256: 7a8055045d09ba1cf3df78ca4af234420bfe8b3c369aa994e76208ce31d18344
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, identified as a link farm and SEO redirector, pointing to external PDF files. The primary redirector URL, 'https://ttraff.cc/pify?keyword=operations+management+a+supply+chain+process+approach+pdf', is flagged as malicious. This suggests a phishing or social engineering attack aiming to trick users into downloading further content, likely malicious.

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=operations+management+a+supply+chain+process+approach+pdf In PDF document text
    • http://files.reddsocialstudies.com/uploads/1/3/0/7/130740563/f2a7936e492.pdfIn PDF document text
    • http://mokute.realty33.com/uploads/1/3/0/7/130775519/luzuwo-xukuzos-lumudufalolimul-fowixidej.pdfIn PDF document text
    • http://files.cbpencil.com/uploads/1/3/1/6/131637374/2558997.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/1/0436/9619/3686/files/wawipowawidaliwomezex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/tirorekezawikem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/52650046441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9753/9231/files/kirk_franklin_stomp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/4003416871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tevedizulav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/pusaviwom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/93555004120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9799/4904/files/zibalaguzir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/65591596740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/kisikil.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_off00013f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F73 5700 bytes
SHA-256: 2014311bfd297657342cf94c3ccf1827df99d3e246d299989e6d69235a1ebed7
font_01_sfnt_off000152ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152AE 15420 bytes
SHA-256: 95e49ebf325dcdc447991ea6afd47dcbe77c8285cd0545e24e4b155de5ad249f

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