Malicious PDF — malware analysis report

Static analysis result for SHA-256 525ac64c63eab451…

MALICIOUS

PDF

60.7 KB Created: 2020-08-03 20:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 416640a8649ae5f0f8345b1af320fcad SHA-1: 79e061683e1605530a631277f65e56b497623e15 SHA-256: 525ac64c63eab451112f31c62b33594bfc49e3b9dbf11636b090ae287275849a
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to a 'fingerprint based attendance system project report pdf' and the malicious URL. The primary malicious URL is https://ttraff.ru/pify?keyword=fingerprint+based+attendance+system+project+report+pdf, which likely serves as a lure to a malicious site.

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.ru/pify?keyword=fingerprint+based+attendance+system+project+report+pdf In PDF document text
    • http://files.a-integrity-inspections.com/uploads/1/3/2/3/132303382/majoxuxaravapixitaju.pdfIn PDF document text
    • http://files.elizabethcromano.com/uploads/1/3/1/4/131437530/winonanorixofos.pdfIn PDF document text
    • http://files.jocabako.com/uploads/1/3/0/8/130874668/nosaz_moxagedefag.pdfIn PDF document text
    • http://files.surviveessentially.com/uploads/1/3/2/6/132681315/69d67f.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/1/0432/1234/1416/files/98603334808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1691/2023/files/50685648709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5188/files/razipovegafitejod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/65595445094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/22442901251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2175/3758/files/60762791304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4755/9067/files/extend_photoshop_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/jiwezevik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5825/6286/files/xaluxafomupinalukirumifip.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9262 5504 bytes
SHA-256: 4892cf6178e4c6802969f090ba649bc95eb1f82b8da3631e57382d744eae3d0b
font_01_sfnt_off0000a4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4FC 15496 bytes
SHA-256: 0adfab9c887be99dc497d6999fbed436805dfcfe7984d26041c2c72865714e80
font_02_sfnt_off0000d50f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD50F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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