Malicious PDF — malware analysis report

Static analysis result for SHA-256 4746685d25991415…

MALICIOUS

PDF

37.1 KB Created: 2020-09-09 17:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0146ca99caf2fde3a32e7b6fe57e2ea3 SHA-1: 2f231e76b7d44d724f77a9754ad9d86148403068 SHA-256: 4746685d259914152dc6e50b6d336e89bfe5fa7ce5356afac2bc53694e663ed7
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=acronis+snap+deploy+5+user+guide'. This indicates the document's primary purpose is to redirect users to a malicious site. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to improve the ranking of the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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.club/wix?keyword=acronis+snap+deploy+5+user+guide In PDF document text
    • http://jikude.biesebroek.eu/uploads/1/3/1/8/131856072/fozibegidubewojenov.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/1/0428/9318/1081/files/33137445697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6808/1574/files/come_alive_vidya_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2938/0767/files/recurrent_spontaneous_abortion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/8104/7720/files/hackerone_latest_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/2727055342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8170/2301/files/wulimag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1131/5611/files/free_customizable_monthly_calendar_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9485/8133/files/sat_2_biology_photosynthesis_questio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/2356936437.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3e7897_b84efffd0e694fd6b6ab197216402629.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8e1900_b5e6d5e6d565471591e05cbbab701bf1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/faa7ef_0eb52a822b0a4098a3b678ecbcaa2573.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 4

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_off0000470b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470B 5260 bytes
SHA-256: acb309cd685150f4303386f3a2338690b5d7184dd3e3708c2e1a1c4e90e90f65
font_01_sfnt_off000058e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E9 9584 bytes
SHA-256: da410e83144f50204bbd8531865235d279982a120ae90d591101d9e345ce9cd5
font_02_sfnt_off000079ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AC 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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