Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba2877ba85580aa…

MALICIOUS

PDF

44.7 KB Created: 2020-08-02 07:04:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 22144a3c07fffd651d32f55223b2556c SHA-1: cff1b561de5fc5d23c1e405be34e69d8b1d76da4 SHA-256: 8ba2877ba85580aa1722d64c1defa2423d29655dc1d8e0ee1221a6955f6a547e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=manual+of+structural+kinesiology+20th+edition+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains embedded URLs that are part of this redirection scheme.

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=manual+of+structural+kinesiology+20th+edition+pdf In PDF document text
    • http://files.2kingdoms.net/uploads/1/3/0/7/130740257/5711164.pdfIn PDF document text
    • http://files.theskinstudioltd.com/uploads/1/3/1/4/131483279/kefimu.pdfIn PDF document text
    • http://files.theissuenewsletter.com/uploads/1/3/1/3/131382808/vafogiragiwub.pdfIn PDF document text
    • http://files.ianshermanlcsw.com/uploads/1/3/2/6/132695755/toliruwu.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/1/0431/6663/0050/files/neevia_merge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7173/2889/files/66562824506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mobisibat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/nuzub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/dowelinogifipazevugowan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2851/8824/files/23543950987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/32267377082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/53841812953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/7151864772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8932/1366/files/jutisogosoratoluzabub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6531/0373/files/55115517024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/fozoxatezobajadowi.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 5

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_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 5744 bytes
SHA-256: dee47816643b9154f27c2537067cd0cbff2fe57b4852c50abb16b134624090c6
font_01_sfnt_off00007564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7564 9920 bytes
SHA-256: 5abbafd985fde054e821fe56389350ba7517d7b7f6c00e55f77c2b03d8b40797
font_02_sfnt_off00009767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9767 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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