Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe2b0301f010679…

MALICIOUS

PDF

70.8 KB Created: 2020-08-20 19:41:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f53988f87401a0504c6901c996d8fa6 SHA-1: ed2762179ca705ad28d97a5f3885e1977ce55f2a SHA-256: 1fe2b0301f010679872d266cd5fe3aaab9015c23ef57548b0784a1876037467e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=yahoo+answers+account+search'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same redirector URL, suggesting its primary purpose is to lure users to malicious infrastructure.

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.cc/pify?keyword=yahoo+answers+account+search In PDF document text
    • http://wopube.dslvnjny.com/uploads/1/3/2/6/132696056/18b0ff5.pdfIn PDF document text
    • http://soxizoxox.bmemf.org.uk/uploads/1/3/0/7/130776493/volovu.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/1/0431/6997/2384/files/wosexizaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6994/7555/files/roliris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35035436777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/journal_of_landscape_architecture_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/3818461863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/14339733673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6655/5556/files/5085242383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0294/5959/files/24289373747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/wetadibejidimis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0766/files/bugoda.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA4C 3796 bytes
SHA-256: 5d1d679533aa0d751608ee8a39d5792907bc1052f357be1d685ff45722049892
font_01_sfnt_off0000b7c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7C3 4908 bytes
SHA-256: f353759e7e73a0f4c5a90fe57351e8a6409ff1b30c5d823a7af782eef8938197
font_02_sfnt_off0000c87f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC87F 14312 bytes
SHA-256: ca11542da12cbdbccf8b25c9df8e052e00ba22fc288aa895974a512764281353
font_03_sfnt_off0000f6ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AD 16700 bytes
SHA-256: 6d6ab6282e13c5b86cafafa3344dcd313c131a703c8307c4e11af48c02e320e2

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