Malicious PDF — malware analysis report

Static analysis result for SHA-256 e65901bd658a88cb…

MALICIOUS

PDF

43.0 KB Created: 2020-08-06 12:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da1aea4fde70b0d46ce0ea2a9286b92c SHA-1: 3210e486b2f7f715b3d0921fe43979b255035241 SHA-256: e65901bd658a88cb2ccf6990cc28b8c9c526b349b5b6bb1de7edb060adb5444b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, https://ttraff.cc/pify?keyword=access+control+policy+pdf, suggesting the document is designed to lead users to malicious infrastructure. The ML classifier also strongly indicated 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.cc/pify?keyword=access+control+policy+pdf In PDF document text
    • http://files.retrogunx.com/uploads/1/3/2/6/132680931/todewenexa-gutefokamofiba-kujidadejalor.pdfIn PDF document text
    • http://files.devizestaxis.co.uk/uploads/1/3/0/9/130969469/9009082.pdfIn PDF document text
    • http://files.marsparentgroup.com/uploads/1/3/1/4/131437561/zododawuf.pdfIn PDF document text
    • http://files.crystallinn.com/uploads/1/3/1/8/131871569/bfc47e06e216.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/1/0431/3061/8011/files/31482371846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6165/files/livre_apprendre_l_allemand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/clean_needle_technique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9607/1578/files/robedivoxif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/simple_present_vs_simple_past_tense_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9481/9484/files/wijopuwexerira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4079/5806/files/machine_screw_head_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/68163755378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9461/4940/files/kuvovilivifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4224/9631/files/35177405872.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_off00005ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA3 4820 bytes
SHA-256: 9852f182df6d195ba766e710b9747a31065f6178a60e35a12f366718bdbdc4de
font_01_sfnt_off00006f11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F11 9948 bytes
SHA-256: 4a0ccb327a94e0fa806f986da97c9abf424f5d0e7823e2e06da705b03e185c55
font_02_sfnt_off00009111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9111 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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