Malicious PDF — malware analysis report

Static analysis result for SHA-256 700f0c24f127adec…

MALICIOUS

PDF

62.9 KB Created: 2020-08-17 12:00:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59ff04026bbc7722b830c5deb7da3af7 SHA-1: e012a72f9c1587f8562751a332a0d7f676eb646f SHA-256: 700f0c24f127adec0363497898e553d2b07652798217f60a895a8f89ee78b571
154 Risk Score

Malware Insights

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

The PDF contains a link disguised as an 'Activision Blizzard annual report 2016' which redirects to a malicious URL. The PDF also hosts a large number of external links, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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=activision+blizzard+annual+report+2016
    • http://rigiso.suttoncoaching.com/uploads/1/3/1/4/131453358/bedupififogak.pdf
    • http://files.sequiturbr.com/uploads/1/3/0/9/130969573/7541053.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/operacny_system_linux.pdf
    • https://cdn.shopify.com/s/files/1/0432/1463/5171/files/nojag.pdf
    • https://cdn.shopify.com/s/files/1/0434/8873/9494/files/ribbon_in_the_sky_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0435/2586/5636/files/kijodibaxe.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/star_template_for_christmas_tree.pdf
    • https://cdn.shopify.com/s/files/1/0435/3749/8271/files/kowalexoxaxewofowuli.pdf
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/2242784773.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/58466417278.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tekutuni.pdf
    • https://cdn.shopify.com/s/files/1/0446/9909/1098/files/93497210729.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdf
    • https://cdn.shopify.com/s/files/1/0427/3173/3159/files/konufusutaxofamojixemibat.pdf
    • https://cdn.shopify.com/s/files/1/0433/1556/0616/files/23354279885.pdf
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/al_quran_with_bangla_translation.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_off0000b11f.bin
5faa570a50881576b4ee272fa327f12d82dbd2fb06febe150734a8f93f90effb
pdf-font-stream PDF embedded font (sfnt) at offset 0xB11F 5788 bytes
font_01_sfnt_off0000c4e1.bin
26b23b0c5c68a030f1b9f17d10f9eb4628387a73e169f816cd80d4b572054c14
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4E1 12788 bytes