Malicious PDF — malware analysis report

Static analysis result for SHA-256 74483c0d84b02c79…

MALICIOUS

PDF

35.4 KB Created: 2020-08-19 11:12:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a630767137411870488b53d8d9c50a9 SHA-1: 32928fd604ad49705d21603aa3b364dca8c96b23 SHA-256: 74483c0d84b02c79d7076e1075576831ca2a209490cb308cf91047f457f9e2c4
154 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector infrastructure, specifically 'ttraff.com', which is flagged as malicious. It also features a large number of links to other PDFs hosted on Shopify, suggesting a link farm. While no scripts were directly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content or engage in SEO manipulation.

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.com/pify?keyword=batman+logo+template
    • http://files.paws4acauseinvitational.com/uploads/1/3/0/7/130775978/wagatotej_narofonix_zidoritune.pdf
    • http://xeruzu.eleanorguerrerocampbell.com/uploads/1/3/1/4/131437601/4990089.pdf
    • http://kugisamot.rooftopmissions.com/uploads/1/3/2/8/132814930/4607180.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/mijotavovuwuxifazusebo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/rulujuvune.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/xebinabuladipujej.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/94714079886.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5400/files/menanam.pdf
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/xajotegus.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5285/files/rodazebip.pdf
    • https://cdn.shopify.com/s/files/1/0451/8959/5287/files/ajax_get_all_form_data.pdf
    • https://cdn.shopify.com/s/files/1/0438/0560/6049/files/witaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8973/files/bimosoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/brand_new_swag_song_pagalworld.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_off00004e3d.bin
582999262ccc01908e3861f5a578313720cde08fc7db345665a376ab0dd34215
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3D 4912 bytes
font_01_sfnt_off00005ee2.bin
222dd0227d7836fe8a133af3ea64772920d61714c71ce9825b122569135b0ebd
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE2 9984 bytes