Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e4aed2e962b778…

MALICIOUS

PDF

52.7 KB Created: 2020-08-23 15:03:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a23cb754d0787599d1d231b8a493235 SHA-1: 67cf9dc4c477ba9ac8c1a3da1e1ae0850a289b84 SHA-256: b0e4aed2e962b778cbaba5f02a3c8f8c200b5df3dd047ac235d944915e284b3c
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that are part of a link farm, with one critical link identified as a malicious redirector. The document body, though obfuscated, contains text referencing 'Fitbit versa apps for android' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly indicates maliciousness.

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=fitbit+versa+apps+for+android In PDF document text
    • http://kebin.samchaseyoga.com/uploads/1/3/1/3/131398428/2679141.pdfIn PDF document text
    • http://gagak.alabamacentralrailway.com/uploads/1/3/1/6/131637814/589c64f.pdfIn PDF document text
    • http://files.serenaremy.com/uploads/1/3/0/8/130814676/7892436.pdfIn PDF document text
    • http://files.gooddogkennelstt.com/uploads/1/3/0/7/130776110/1251171.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/1/0450/7149/9416/files/golijikabijopejepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98690712505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1813/3405/files/best_self_help_books_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0377/2056/files/52422542104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9027/1638/files/katapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4730/2806/files/89401641601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3859/6510/files/dibevopadakavanesezopoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5064/7202/files/ar._js_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/18204650326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9323/7665/files/36509347226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0873/6936/files/nozoguzoduwituxado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7052/0470/files/2496886091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/nuxujoleritesalufix.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 3

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_off00008f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F10 5160 bytes
SHA-256: c801ab9937eea0d8b580f6522db799e011b54a4cf8f7b0756f2546bb56e263c1
font_01_sfnt_off0000a0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B1 10772 bytes
SHA-256: 7e045a8c40aab47e1b73dd8e654b4f14b705d5e5df09bea0c5f17318809f3950

Open this report in the interactive analyzer, or submit your own file for analysis.