Malicious PDF — malware analysis report

Static analysis result for SHA-256 967f6cff8bee948d…

MALICIOUS

PDF

48.5 KB Created: 2020-08-26 02:08:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d1e21ea3b4b687fa2bc4157853b6c74 SHA-1: fdd08642a2893b93ac4cca149c4cc3d3ae164d82 SHA-256: 967f6cff8bee948d0234cce7096a1464adfb6ac40bd789adbf288038e87ab31f
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though partially corrupted, contains the primary malicious URL. The presence of numerous links, including a link farm, suggests an attempt to distribute or redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.com/pify?keyword=rocaba+armor+bdo In PDF document text
    • http://files.mycorporatecounselor.com/uploads/1/3/1/4/131437983/1606706.pdfIn PDF document text
    • http://files.annascornwallview.com/uploads/1/3/2/7/132740836/549d5f2.pdfIn PDF document text
    • http://dipeb.julianneabejar.com/uploads/1/3/0/7/130776819/5bdc922453.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/1/0433/0687/7080/files/niwaragevutaxesidep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3725/9938/files/mumusuvubazixamivam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/2249/2319/files/the_day_after_tomorrow_full_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1648/7065/files/zawokoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3698/0886/files/soprano_saxophone_scales_and_arpeggios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7732/7265/files/82307000383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5274/files/potali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/xizozumejedubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/88514071903.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 8

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_off00007705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7705 5024 bytes
SHA-256: 32026748668a5f4be84a64d36776f9fc52025356ddc7b71be1cc141957140d8f
font_01_sfnt_off000087f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F7 14896 bytes
SHA-256: 7e02e0347b1b6b1c1dc9f7e3b9e16548d110215eee0a251934ba5521fa718039

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