Malicious PDF — malware analysis report

Static analysis result for SHA-256 73ecfaabb2c72f0a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-01 11:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85a1751ceb767ec331e14a0ce930e429 SHA-1: 4736f0271b1bd67df5397340ebf180505e0f8ee6 SHA-256: 73ecfaabb2c72f0abb1ae01e9362fa71739bcf8982b60b021b3882daae411f74
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure via 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests a phishing or scam attempt to redirect users to a malicious site, likely for further exploitation or credential harvesting.

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=apollo+100+joy In PDF document text
    • http://files.yonemoto.com/uploads/1/3/1/4/131453897/545605.pdfIn PDF document text
    • http://files.artreasuresforever.com/uploads/1/3/0/9/130969656/gixuvotego-jidonujeb-jajubowirov-livuwonib.pdfIn PDF document text
    • http://files.streetambitionunited.com/uploads/1/3/1/8/131856212/zimazutav.pdfIn PDF document text
    • http://files.plazaproduce.com/uploads/1/3/1/3/131383426/vizafazemudojopa.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/1/0431/1898/5377/files/mtg_arena_update.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/zikizulapejadolabog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2266/4348/files/jogatubaladedubanemip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/xorevex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/guvogajemap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8688/6552/files/lepokilogako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1924/7514/files/84411300648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5193/4108/files/15334059238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5381/8790/files/kerisew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/nizizudenupanefevizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37872338034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/2885814426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/rolonigagafevatagim.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F57 4128 bytes
SHA-256: ad24c9da73acdbd07efc79c441b691c78558c1ae7bdbcac7c95e42f2d3524dc6
font_01_sfnt_off00006d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D61 9980 bytes
SHA-256: 53696079811393e971f2dba85431a0efb2320ca1ed0f25c2ebe09dec5f8b6f4b
font_02_sfnt_off00008f9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9D 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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