Malicious PDF — malware analysis report

Static analysis result for SHA-256 717e84668b3bee9c…

MALICIOUS

PDF

43.6 KB Created: 2020-08-13 23:37:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fae82a78c428e3e748067c1024a7841e SHA-1: 72806e0d57ceb809e268301bf0607512b94aaae4 SHA-256: 717e84668b3bee9c96182344bc48c1a30a71b7b65511a8cf629bb7ea30c63484
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a link farm designed to generate SEO traffic, with one critical link identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=single+phase+pole+mounted+transformer+wiring+diagram, which is flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=single+phase+pole+mounted+transformer+wiring+diagram
    • http://files.themunrosofglenorrin.com/uploads/1/3/0/9/130969191/39483b7a6d7258f.pdf
    • http://files.kellystevensscience.com/uploads/1/3/1/6/131637150/7842426.pdf
    • http://files.shinenewagemedia.com/uploads/1/3/1/0/131070560/kabuzebiwanuge_kefozupof_jikusuvoba_sekixezexatif.pdf
    • http://meviva.mymaryjanerehab.com/uploads/1/3/1/6/131606490/cc17e66.pdf
    • http://files.roberttrescott.com/uploads/1/3/0/7/130740510/vawetox.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0436/6182/0054/files/vadakafaxox.pdf
    • https://cdn.shopify.com/s/files/1/0440/5516/7126/files/cam_ron_pink_mink.pdf
    • https://cdn.shopify.com/s/files/1/0432/1447/1330/files/81426538638.pdf
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/96249750677.pdf
    • https://cdn.shopify.com/s/files/1/0435/8035/8815/files/zijulalobowuk.pdf
    • https://cdn.shopify.com/s/files/1/0448/4051/7792/files/mathematics_and_statistics_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4109/5834/files/xonemekuvonutepemowizem.pdf
    • https://cdn.shopify.com/s/files/1/0430/4902/5690/files/23861487089.pdf
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/89294842579.pdf
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/25742897050.pdf
    • https://cdn.shopify.com/s/files/1/0433/3754/7929/files/fejowinoxaxinuxoxomapudaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/libikibezet.pdf
    • https://cdn.shopify.com/s/files/1/0428/0965/5462/files/dufugixalorakuk.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bfa.bin
def397a474b819fcdd0bdaf2a59ab622e8f2e23609d4d3e3b34ca3831ec65ada		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFA 5648 bytes
font_01_sfnt_off00007f0f.bin
de61e2d3823b8b270c07aed8778f8478ecf87617f04ba15e14ab29e81671d0db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0F 9844 bytes

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