Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d1ef52112b9ff64…

MALICIOUS

PDF

38.4 KB Created: 2020-08-07 21:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a606395ab670ae1d5fcd73def651cec SHA-1: 58cd93530b84d89e023344e48d10eca1d127ccdb SHA-256: 8d1ef52112b9ff64f8cd842fecfec6902d351f671d76b66772bcdf2f0804d302
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious link, https://ttraff.cc/pify?keyword=accounting+information+system+pdf+book, is a redirector designed to lead users to malicious content. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a lure to a malicious website.

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=accounting+information+system+pdf+book In PDF document text
    • http://kosofane.melindakerst.com/uploads/1/3/1/3/131398140/potibezijapunonufot.pdfIn PDF document text
    • http://files.hlfmgoats.com/uploads/1/3/1/3/131383553/jopaxubesoz.pdfIn PDF document text
    • http://files.panconsultium.com/uploads/1/3/2/6/132695636/vipixekavo-nodugaluram-rupamojikato.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/1/0438/4414/1218/files/51900880683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8771/5742/files/witomoziwogopawewenesarob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/99619139434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/75459266170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3368/0282/files/karij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3262/4797/files/27145670275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/ford_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9050/0001/files/makalah_atraumatic_care.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/37648048302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5149/1233/files/limotowekajexevofex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/wowuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/20809439624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0766/2504/files/ct_angiography_lower_limb.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 8

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_off000056b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B7 5740 bytes
SHA-256: fcf8665f8910f262685c41b0843e37545ead6309d947d5431df4eb41f16873c5
font_01_sfnt_off00006a35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A35 10148 bytes
SHA-256: 3652661b1d66dd145f1b571466ef1db8634e9a12950f451916da599179ef6fa9

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