Malicious PDF — malware analysis report

Static analysis result for SHA-256 48df06670d2fbd6d…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 20:12:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 091c40db67ecb37275a6fa6b80667cee SHA-1: 064937cc0e900992fb4b1cada315a826a37ace9d SHA-256: 48df06670d2fbd6d99712155f823021ae82901eb565f0c2bfc777e4294d7f570
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.ru'. The document body, though partially corrupted, includes the text 'Crowdstrike earnings report date' and a URL that appears to be part of a link farm strategy, aiming to attract users through SEO. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the redirection to malicious infrastructure, and 'PDF_SEO_LINK_FARM' indicates a tactic to distribute malicious links widely. No scripts were extracted, but the primary attack vector is the malicious redirection.

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=crowdstrike+earnings+report+date In PDF document text
    • http://zivow.cookingwithdfg.com/uploads/1/3/0/7/130740178/buluxodeve.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/1/0429/7857/4490/files/64248013659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/tovuzovilipenifebifisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8381/5325/files/nekemuduwuxisuvedodunop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/gejuvidutoxesurutove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4042/files/xelisumubuvekuwakuwizatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0055/1830/files/eq2_necro_spells.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/python_read_json.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1283/2931/files/61475109307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3164/5608/files/eset_antivirus_para_android_apk_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3113/3340/files/kukepijagekedazikixaxami.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 1

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_off00007516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7516 5156 bytes
SHA-256: 89d09d24ccfd8cf260fe35774e86e91ae41d7117df58d2a2a8617e49fcdd4a03
font_01_sfnt_off000086c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C5 13952 bytes
SHA-256: a636703d1f5c6bdfc56984687fe1832c5b2a0a262200c27d001bd9cc92685a7f

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