Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44a155229c3d8f8…

MALICIOUS

PDF

91.3 KB Created: 2020-08-09 17:26:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4eee6b15d4eb9323815485de789f696f SHA-1: 66d9bb202ce83b63e2f0061870c11f7cc3afd8fe SHA-256: d44a155229c3d8f8599895bd71a856e3a93b6649019e70c701b60936f4022ca7
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. This indicates an attempt to redirect users to a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of a PDF link farm heuristic further suggests this document is part of a larger scheme to drive traffic to external sites.

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=language+acquisition+versus+language+learning+pdf In PDF document text
    • http://files.spiritrestretreat.com/uploads/1/3/2/6/132681826/8435354.pdfIn PDF document text
    • http://files.westcountyschoolgardens.org/uploads/1/3/0/7/130740221/razinexux-liwule-mojumanakilu-vepum.pdfIn PDF document text
    • http://jusitoku.kioloamarinerescue.com/uploads/1/3/1/1/131164250/jufuvozevumeviwun.pdfIn PDF document text
    • http://sireta.straccwa.org/uploads/1/3/2/6/132682883/judogenomajixoribudu.pdfIn PDF document text
    • http://files.shakespeare-garden.com/uploads/1/3/1/8/131871919/ligorinanameke.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/1/0431/5293/3021/files/92027823485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1432/3356/files/66070059368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1995/9454/files/32526745564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6826/files/galvanic_corrosion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/6471439964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/56523117687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/berujixawajibexuxutuzogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9109/9805/files/romasuvibamoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9292/4821/files/indeks_bias_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/62941584871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/12040339077.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 3

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_off00012539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12539 5448 bytes
SHA-256: a301b15588f3d7e0cec8567d58f4efdf303459e51fc9983e6d68a4c7e1d9c7f7
font_01_sfnt_off000137db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137DB 11928 bytes
SHA-256: 569cce37b46a711e66d9317652be45fb63822c5aa2572ccd8813bc92d8fe9964

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