Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc040ffb56d1e0cc…

MALICIOUS

PDF

54.9 KB Created: 2020-08-18 19:14:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0532618b443b575ad6f9e9e4b7be7dd SHA-1: f0cc7ec7ebe815be0641671616048fe830959a77 SHA-256: cc040ffb56d1e0cc9490320d58152df7d7c6e7f81adf2676249f7491e7e1ef44
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary malicious URL identified is https://ttraff.ru/pify?keyword=monster+hunter+world+greatsword+progression+guide, which is presented within the document body as a guide. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links are sufficient to infer a phishing or redirection attack.

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=monster+hunter+world+greatsword+progression+guide In PDF document text
    • http://zasivida.annemcmillslighting.com/uploads/1/3/2/3/132303382/8208981.pdfIn PDF document text
    • http://siput.jeffgrothedesign.com/uploads/1/3/2/6/132681862/57911.pdfIn PDF document text
    • http://files.writinginkc.com/uploads/1/3/1/3/131398145/zajufuxenule-rawetonobe-kasakuz.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/1/0440/2587/2549/files/mimegufajuzabojera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/26907881831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6237/7113/files/mikiradozotemamuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/63561620902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4572/4055/files/dapafipexupuzowivavefator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/biology_syllabus_for_neet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/97216324016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/87437909285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/videbimubuniwariwibozu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6566 4628 bytes
SHA-256: 3a8914fda8fae59c6a8ff8912736ccc5e6f981c303fd1c6727879204276cb89c
font_01_sfnt_off00007593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7593 5316 bytes
SHA-256: 959ec5718d0c2c2c15ff529b7d9ae67668598b0d6d2d1e8bf9915dd535840548
font_02_sfnt_off000087b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B9 15168 bytes
SHA-256: 51ba150b1651d9dfe46e046beefc0d35c574bacdd7aa958165c9592f9155f808
font_03_sfnt_off0000b6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D0 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67

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