Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d9e29cbf02a72e…

MALICIOUS

PDF

40.4 KB Created: 2020-08-19 23:30:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5042eb3f0a78d00e3cb76aed835f96ab SHA-1: 986ce5875a3dfd4241ca02e0df43c4a0ebaa1d53 SHA-256: 60d9e29cbf02a72e5e72276643ad124aa74a68e46c5ace1b933a3bfc0d49ee0e
154 Risk Score

Malware Insights

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

This PDF document contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=injury+report+nba+finals', is identified as a malicious redirector. The document also hosts a large number of external PDF links, many pointing to Shopify domains, 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=injury+report+nba+finals
    • http://gazitoxek.richfeenstra.com/uploads/1/3/1/4/131454215/soxewedulu_xunoromurato.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/64682252410.pdf
    • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/96143505649.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/mcdonalds_star_wars_toys.pdf
    • https://cdn.shopify.com/s/files/1/0432/2023/8503/files/30377699866.pdf
    • https://cdn.shopify.com/s/files/1/0436/9360/5014/files/53487831867.pdf
    • https://cdn.shopify.com/s/files/1/0432/4343/8244/files/wunavitalawusuvu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9866/1279/files/sawibusegetosomizeja.pdf
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/fibavilobigabu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0358/4409/files/63916970220.pdf
    • https://cdn.shopify.com/s/files/1/0437/5855/1189/files/cub_cadet_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0447/9424/9377/files/cisco_ccdp_arch_simplified.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_off0000608e.bin
7c2370b9c8faf14dfd991dc1000c3d3b0930cf4c169b410a2e48fb001806fc69
pdf-font-stream PDF embedded font (sfnt) at offset 0x608E 5148 bytes
font_01_sfnt_off00007225.bin
0d9f1e8c881eb4216c5165322676a33879f7828ad0abf849b3009b179911a925
pdf-font-stream PDF embedded font (sfnt) at offset 0x7225 10296 bytes