Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e2e68d68680cfb…

MALICIOUS

PDF

60.8 KB Created: 2020-08-09 22:41:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 475ff8a4044f5b8cb7f357fa407e4694 SHA-1: d4964f041a4aa0d39dae047d57dfcba30d751a91 SHA-256: 80e2e68d68680cfb08adbda47c56fe54bb0df063bdb5e0e7cb410e187e15995a
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', disguised as a document about 'antennas and wave propagation'. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The PDF also hosts a large number of external links, many of which point to Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

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.com/pify?keyword=antennas+and+wave+propagation+by+bakshi+pdf
    • http://files.theremnantknoxville.org/uploads/1/3/1/1/131164431/1382205.pdf
    • http://gokabixam.hollyspoodles.com/uploads/1/3/1/3/131398091/5543829.pdf
    • http://files.qualityfolk.com/uploads/1/3/2/7/132740424/813732.pdf
    • http://files.skyviewwa.com/uploads/1/3/0/8/130873717/tefuvemodixol-nebidimeno-kafujur.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0096/files/soxapiwevuzorazuxanif.pdf
    • https://cdn.shopify.com/s/files/1/0435/7704/9247/files/47302540261.pdf
    • https://cdn.shopify.com/s/files/1/0429/1277/6351/files/76847570037.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/89566458207.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/attunity_replicate_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3934/2248/files/total_gym_ultra.pdf
    • https://cdn.shopify.com/s/files/1/0430/7366/7225/files/34019774657.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/50784398787.pdf
    • https://cdn.shopify.com/s/files/1/0437/5537/2695/files/tozenuba.pdf
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/99584825116.pdf
    • https://cdn.shopify.com/s/files/1/0437/4046/3255/files/pdf_file_format_structure.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_off0000ae7c.bin
d8302bbe3a01a95734799e9bff703426b4e94f75779e8822931009c0ffc66d51		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7C 5716 bytes
font_01_sfnt_off0000c20d.bin
025ca66f4ad1df500059ebd522e7dc7bfd3748d6864b5bcf4b3780ccfaab6497		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC20D 10400 bytes

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