Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb70d3e06936994d…

MALICIOUS

PDF

55.5 KB Created: 2020-08-07 08:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fd76845a817ba83da0ce74deecd78e2 SHA-1: c46775bf9bd238f59e4eb3f03a0dd9d051dc8d1f SHA-256: fb70d3e06936994df113900aa13fbad7da4c0b683a739f6233779ccef554189b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=capability+maturity+model+integration+pdf', points to known malicious redirector infrastructure. The document body itself is heavily obfuscated and appears to be generated content rather than user-readable text, further supporting the malicious intent of distributing links.

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=capability+maturity+model+integration+pdf
    • http://files.greendogfarmcsa.com/uploads/1/3/1/1/131164568/4094412.pdf
    • http://files.synergglass.com/uploads/1/3/1/0/131069869/fivajodasikadu_neposidox.pdf
    • http://files.brighthope247.org/uploads/1/3/1/3/131383377/xuvotimudanaserep.pdf
    • http://files.animalmedicalclinicsawgrass.com/uploads/1/3/1/4/131407547/f11fae6ffa114.pdf
    • http://files.8870adventures.com/uploads/1/3/0/9/130969748/xajubarabop_vafumatoxuroga_kuserezaf_tujokifepopugiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1755/8426/files/compress_to_smaller_size_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/4729/5898/files/247_bridge_game.pdf
    • https://cdn.shopify.com/s/files/1/0428/6421/4182/files/bipeludedo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/lavulimavedogeveviton.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/segorokavegibaxopokituxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0151/1064/files/acura_tl_type_s_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/3772/6622/files/74503596226.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/49124832239.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/87428473472.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_off00009b0d.bin
5bf1506f9ec911b2717628f6346a7248159d18c5dcd797e85bc921ec4d66e10d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0D 5328 bytes
font_01_sfnt_off0000ad1b.bin
79c2616627d1d75a8c1dc393f52b5d5e633d23e06f77ccb860bb5a07c625bc08		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD1B 10588 bytes

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