Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d73b47081e438d…

MALICIOUS

PDF

33.2 KB Created: 2020-09-18 11:39:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ec417a5016516b66646600d6aef898c SHA-1: 332b71f10948ca4994e2741ee22ea1f86dcb820e SHA-256: c2d73b47081e438d97535df9fa2799e9e39a36fb67c15a5aa15f330dbd112042
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=bosch+guide+rail+system'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0432/1440/5793/files/personal_finance_tracker_template.pdf'. The document body, though heavily obfuscated, contains references to these URLs, suggesting an attempt to trick users into clicking through to malicious infrastructure.

Heuristics 3

  • 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.
  • 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.me/wix?keyword=bosch+guide+rail+system
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/personal_finance_tracker_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/5625/0525/files/32275506292.pdf
    • https://cdn.shopify.com/s/files/1/0432/2118/8763/files/capital_letters_and_small_letters.pdf
    • https://cdn.shopify.com/s/files/1/0429/8188/4067/files/rivotetebavawexix.pdf
    • https://cdn.shopify.com/s/files/1/0431/0410/8711/files/beneliduvuwejuvale.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/56734693028.pdf
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/carbon_footprint_of_electric_vehicle_vs_gas.pdf
    • https://adcd8694-2803-40af-b108-9d34f2c2dea3.filesusr.com/ugd/a771bd_6b25884310c0450794d04e6345cd3a64.pdf?index=true
    • https://6150d36c-6ec5-48f9-b335-a7be464bcf9d.filesusr.com/ugd/696117_b1609a2db5314a87bd2552a78d58d7ed.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/6707/9830/files/minecraft_fallout_texture_pack.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/outlook_for_mac_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0431/4546/1909/files/guardian_rank_borderlands_3.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004448.bin
6440d9f1d6209bd128fd480fb070d3ef71116a9e523f8e66efaa4b25b015b759		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4448 5504 bytes
font_01_sfnt_off000056e2.bin
f611f83822f0898b57ff10b7fbe771f571595328676716ee261654d189eed0a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E2 9796 bytes

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