Malicious PDF — malware analysis report

Static analysis result for SHA-256 103fde68ecf71fcd…

MALICIOUS

PDF

32.9 KB Created: 2020-08-26 07:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2afcf5268a37f3212c961e2f294a56cc SHA-1: 45ca60eb7ed9821bcf1a3ab1d31038f84c8fe580 SHA-256: 103fde68ecf71fcd451fa6abcef4c3705693b964c455941ef0bada03cf9c1784
154 Risk Score

Malware Insights

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

The PDF document contains a link farm and a direct link to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=5.11+tactical+watch+1607, which is identified as a malicious redirector. The presence of numerous Shopify links, many pointing to PDF files, indicates a potential SEO poisoning or link farm tactic to distribute malicious content.

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=5.11+tactical+watch+1607
    • http://files.jamesdouglasmultimedia.com/uploads/1/3/1/0/131070160/04ada9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/0088/9507/files/raromekezugagovobig.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/97291966754.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7414/files/3283300003.pdf
    • https://cdn.shopify.com/s/files/1/0429/9902/1731/files/sojowepapefujop.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2821/files/13318240575.pdf
    • https://cdn.shopify.com/s/files/1/0429/3571/3958/files/laweg.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/tools_and_equipment_used_for_embroidery.pdf
    • https://cdn.shopify.com/s/files/1/0434/6770/2432/files/middle_texas_coast_fishing_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0377/files/lojifuvi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6980/0597/files/52921042395.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/35095380697.pdf
    • https://cdn.shopify.com/s/files/1/0435/4595/2408/files/92802229702.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_off0000429e.bin
08dbc362e0fe71a9cae75f5b9afa66c967b87c3afac0be386cd3407101b1cc20
pdf-font-stream PDF embedded font (sfnt) at offset 0x429E 5196 bytes
font_01_sfnt_off00005459.bin
958725fe3cca86f08cfb5f3902275697f12ec6d538133892907dcb8d7b0723ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x5459 9748 bytes