Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d68d00bc644ae0…

MALICIOUS

PDF

69.3 KB Created: 2020-08-21 20:47:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f99638574d1d207a611607e16a28cadb SHA-1: aa5078f4c2e2aee29ecc542f1dabc439db050cf5 SHA-256: b3d68d00bc644ae08b1312e295a689dd484a9b92b661c003804721d83a4197b6
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as an 'example and answer' for compound interest. This lure is further supported by the 'SE_INVOICE_LURE' heuristic, suggesting a deceptive intent. The PDF also hosts a large number of external links, many pointing to Shopify, likely as part of a link farm to improve SEO for malicious content. No scripts were extracted from this sample.

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=compound+interest+example+and+answer In PDF document text
    • http://maguw.mysticmancreations.com/uploads/1/3/2/6/132680981/pipupidinamolaw.pdfIn PDF document text
    • http://files.harvestmoonsanctuary.net/uploads/1/3/1/4/131453574/bisikuputovonu.pdfIn PDF document text
    • http://files.hardinsburgbc.org/uploads/1/3/0/7/130740212/jidanulipilazamemate.pdfIn PDF document text
    • http://files.faithfilledmillennialmomma.com/uploads/1/3/0/7/130738568/9636523.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/1/0446/1517/2259/files/gta_vice_city_cheats_codes_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/mupileteputusowuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/wuboguwipujosimavekelakir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1261/0457/files/academic_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2636/6116/files/91614951250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7654/0834/files/jumuvanuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0667/9447/files/gazofoxokibevedevap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0349/3026/files/11636504238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/feladane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0326/3650/files/sadorovipovaduxarafovenu.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_off0000c79e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC79E 2828 bytes
SHA-256: 3b89a1333aa93e194de12c5c5da229a8f3a969ace6b07a90c5323b9ece6747ec
font_01_sfnt_off0000d199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD199 5172 bytes
SHA-256: 7f8e5f5980ec236dc17b1f93415bbd74147cf06d2221a3b77487b54fe50390b6
font_02_sfnt_off0000e325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE325 10580 bytes
SHA-256: d41b3dd5cb7e6872d49d0488a277479f2e1a7a221ec344ac87a137785c537712

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