Malicious PDF — malware analysis report

Static analysis result for SHA-256 d76d8c892fbf1bf2…

MALICIOUS

PDF

41.5 KB Created: 2020-08-21 06:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98aa3e8d774130c44d9b5ba67f2ff385 SHA-1: 9f96a6cf2905457572fc30709c739c0a50b161ce SHA-256: d76d8c892fbf1bf2799382e3dd01f784dc13c4c1394d69375186c8af1f19ecfe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a malicious redirector link pointing to ttraff.com, which is designed to lure users into clicking on it by presenting a seemingly relevant topic. The document body, though heavily obfuscated, contains the same URL and keywords related to caller ID blocking applications. This suggests a phishing or scam attempt, likely to lead the user to a malicious site or download further malware.

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.com/pify?keyword=caller+id+block+calls+texts+apk In PDF document text
    • http://lefaxo.perfectfixhandyman.com/uploads/1/3/0/7/130776065/vowarepel-gunos.pdfIn PDF document text
    • http://files.lansingweddingdjs.com/uploads/1/3/0/8/130874398/5ed6b.pdfIn PDF document text
    • http://files.recrates.co/uploads/1/3/0/8/130813756/5658906.pdfIn PDF document text
    • http://files.drjester.com/uploads/1/3/1/8/131856039/doromatilesef.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/1/0434/6891/4838/files/kenmore_washer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/wonagobagaxofagip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5435/6897/files/44571418618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4520/7714/files/97157049916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8043/4342/files/tofopaxixasivulorikifufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5783/0298/files/dikuxivubosedevedudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/31271316498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9506/8567/files/sadness_and_sorrow_piano_midi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/85250376109.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 6

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_off00004f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2A 5244 bytes
SHA-256: b1ae3bea5ce76fcd61c14bad05279f0d6acd9b72187836efbdf8263595f6a0d7
font_01_sfnt_off00006107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6107 10152 bytes
SHA-256: 21bc46d0914dc5e732d1bb9f3b3be9609e65169a5cf4ae8fbc7f7578e4f1b243
font_02_sfnt_off000083ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EF 16204 bytes
SHA-256: 189d60c719f4ad010170093188c4aaf375f7d541ff0900e7accfc6e0ca5188d3

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