Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0ab8ea19dc3e8d…

MALICIOUS

PDF

43.5 KB Created: 2020-08-21 09:14:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96ae5c9fd405cd1d7d9d3ad75803d841 SHA-1: f4377fe79cb754f463296237951bfc9abc6a46fd SHA-256: 0a0ab8ea19dc3e8dabbb462c1d65623cd341fd9ec547208f610568fc65cc879f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body and heuristics suggest a lure related to 'fcpx title templates free', likely intended to trick users into visiting the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination.

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=fcpx+title+templates+free
    • http://files.rocksteel.co.za/uploads/1/3/2/7/132740488/4065338.pdf
    • http://tupozipa.mjthomasphs.com/uploads/1/3/2/7/132712050/fa1fe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/9933636999.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/19159743959.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
    • https://cdn.shopify.com/s/files/1/0439/1901/6104/files/badrinath_cinema_padal.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/campbell_biology_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/vasirosekaduvisudirub.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7654/files/felurutojepevurinejurojo.pdf
    • https://cdn.shopify.com/s/files/1/0436/4809/0272/files/master_plan_of_evangelism.pdf
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/tunexupotab.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005846.bin
f4c8f687f762cc57a5076b394ad545ca3fffda212db860eb2ad94d54f1883cf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5846 5184 bytes
font_01_sfnt_off000069d2.bin
8eed84bd02a952ec982ad162926fd1fb4b7052aae8f5cc131d01f2f57cda4807
pdf-font-stream PDF embedded font (sfnt) at offset 0x69D2 9892 bytes
font_02_sfnt_off00008be7.bin
f267a97a42ed964490c0c36cf8d24d30f5cfc386ee24850e75bb3a4991f11828
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE7 16376 bytes