Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e23b7be717fee40…

MALICIOUS

PDF

43.8 KB Created: 2020-08-28 09:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48eee09407fdb1b0d1318f09e23acd0e SHA-1: 6db17768aa8c9834e211db4f5e75ab6ff1123c4c SHA-256: 6e23b7be717fee4012e3d5d9dbca7d9823ea58e93735a9c19c9f8404e4aa5e8d
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector service, identified as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'walking war robots weapons guide'. This suggests a phishing or scam attempt, likely using the embedded links to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict.

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=walking+war+robots+weapons+guide In PDF document text
    • http://logax.ryanhayford.com/uploads/1/3/0/7/130739197/300efb.pdfIn PDF document text
    • http://files.ashleyjunemarie.com/uploads/1/3/1/4/131406391/da42206cef3ac.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/1/0437/7234/6526/files/nelson_mandela_book_long_walk_to_freedom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/nowasobeneriwuvag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/bosch_super_silence_42_dba_user_manu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34456372212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4558/4033/files/brunelleschi_s_dome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9580/9431/files/ikea_build_your_own_desk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasidobedibugamis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2764/4072/files/4960347203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0727/8247/files/gsheets_python_api.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8004/6997/files/83374554508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1954/3199/files/fitbit_charge_3_special_edition_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5300/files/zujunejiziz.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_off00006d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4D 5436 bytes
SHA-256: 7b94997131fbe334636ce6904c5c820b097ca84366965c4d8b2a2362394926e0
font_01_sfnt_off00007fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE3 10120 bytes
SHA-256: f9dea06cd9be22f2f773558b7e56b8d558b793f0ecbebab642a4827dda33cae6

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