Malicious PDF — malware analysis report

Static analysis result for SHA-256 387c7fe01dfa7321…

MALICIOUS

PDF

53.8 KB Created: 2020-08-08 03:51:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e37001306c16e89481a91e29c55cd1fd SHA-1: 5d7fb24b73b8f8ce055f805e314d0adbfb44327a SHA-256: 387c7fe01dfa73211f102467dd7de8a2aad332df394111f53dfcde9d15f82d93
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one primary malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=bowflex+ultimate+2+manual+pdf, which is flagged as a malicious redirector. This suggests the document is designed to trick users into clicking the link under the guise of a manual, leading them 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.ru/pify?keyword=bowflex+ultimate+2+manual+pdf In PDF document text
    • http://files.agocharleston.org/uploads/1/3/0/7/130776266/xutux.pdfIn PDF document text
    • http://files.mcmnapa.com/uploads/1/3/0/8/130813799/a2972e2a8e.pdfIn PDF document text
    • http://melafutil.thewineswirler.com/uploads/1/3/1/6/131606069/poxotulosizaviziju.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/1/0435/2580/0087/files/tomamuzuxezovasituzekax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/posag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/47408770238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/8106872633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/ragesufiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/gojegenidijefur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1755/0499/files/popetonujulod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7762/3201/files/underline_in_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5813/3152/files/11422209887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/nujevewuvip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6912/6309/files/3425356510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/tutorial_excel_formulas.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 4

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_off0000862f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862F 5136 bytes
SHA-256: 662f6a472ed7f88de519799abf680f63915b90460e9bb0cf7e3664c2dbbc665f
font_01_sfnt_off000097ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97AE 10772 bytes
SHA-256: 2e13703dc68adc62668e688fcaf22e57280b22e50fa646c57b8f88390dbf111b
font_02_sfnt_off0000bc4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC4D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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