Malicious PDF — malware analysis report

Static analysis result for SHA-256 8223caa8b8e1f99e…

MALICIOUS

PDF

40.1 KB Created: 2020-08-01 14:10:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e0d025c0c4e0f55ce13a704904290f0 SHA-1: 7e1f15063714b5e450afc7ad41e0ebde21ae6098 SHA-256: 8223caa8b8e1f99efc7c2f85e5216fc6d479f35e44155caeb8f8d7405e623b10
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=blue+snowball+settings', which is also flagged by heuristics as a malicious redirector. This suggests the PDF is designed to lead users to malicious content, likely for phishing or malware delivery.

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=blue+snowball+settings In PDF document text
    • http://files.heavensgardenrestored.com/uploads/1/3/0/9/130969190/vijumitemuluvur-pogewa-pavovujefal.pdfIn PDF document text
    • http://files.ecardsvs.com/uploads/1/3/1/3/131384777/32412e1.pdfIn PDF document text
    • http://files.awakeningstaryoga.com/uploads/1/3/1/4/131454549/2874401.pdfIn PDF document text
    • http://files.linemantrainer.com/uploads/1/3/1/3/131381612/wojitu_kazubapi_ledokakikimol.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/1/0432/3147/7922/files/43943965177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/litigupemaguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/46992771878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/maxuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/56084731650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/lebiratanoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/rojisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/fadebilewunitelinodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0006/2371/files/suwuzazidobun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4490/4855/files/26601331491.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_off00005258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5258 4920 bytes
SHA-256: 71bfe4394c134618cfda93aef497746ec11fb1c7a92a9d8b00d4534fb328b72f
font_01_sfnt_off0000633f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633F 10052 bytes
SHA-256: 0df894d938aa733747c77aae79ffa013ad8d2e2ce0450fbda57f7025df3f68be
font_02_sfnt_off0000859c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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