Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce6639b124a46b4…

MALICIOUS

PDF

55.3 KB Created: 2020-08-19 14:26:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f08c2f64e13e97525cc41338ccd6deb SHA-1: a6b4441b133d36ab070f10d53abdde793b01661c SHA-256: bce6639b124a46b4485f99b5b9cfb7e2e4cafd8f2bda113e39ca3e7e4e7f326e
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=amer+fort+jaipur+images'. Additionally, it features a PDF link farm heuristic, with the first URL being 'https://cdn.shopify.com/s/files/1/0434/1537/1932/files/death_grips_quotes.pdf'. The document body, though heavily obfuscated, contains the malicious URL, suggesting a social engineering lure to drive traffic 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.cc/pify?keyword=amer+fort+jaipur+images
    • http://files.richardjespers.com/uploads/1/3/1/6/131606111/xafaxibu-boripadumulasut.pdf
    • http://files.thesanctuaryatmn.com/uploads/1/3/1/8/131856184/d83262d07.pdf
    • http://files.inearthenvessels.com/uploads/1/3/1/4/131482975/57d09cd72e56.pdf
    • http://wopebedab.theflorecerproject.com/uploads/1/3/1/3/131379478/masedejasurekawuwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1537/1932/files/death_grips_quotes.pdf
    • https://cdn.shopify.com/s/files/1/0439/2304/6568/files/25381583173.pdf
    • https://cdn.shopify.com/s/files/1/0440/1024/2198/files/binary_number_system_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5071/files/kegovexof.pdf
    • https://cdn.shopify.com/s/files/1/0431/9028/8541/files/cracker_barrel_nutrition_breakfast.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/49433053847.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7335/files/obusforme_customair_backrest_with_adjustable_lumbar.pdf
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/26893172451.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/performance_appraisal_process_steps.pdf
    • https://cdn.shopify.com/s/files/1/0433/4092/3048/files/34000575140.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/11787743886.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43377474007.pdf
    • https://cdn.shopify.com/s/files/1/0447/5728/7061/files/66279370194.pdf
    • https://cdn.shopify.com/s/files/1/0429/4852/6246/files/49995208243.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_off00009add.bin
f54b1614d8c25edc36bf5104b635915d7c022ec2a224e2e2942d3cf7c28530b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADD 5256 bytes
font_01_sfnt_off0000acac.bin
6808cd6822d1b97ea8ac5e23dd7bff257deee2859156908e17712a50f6e8bd2f
pdf-font-stream PDF embedded font (sfnt) at offset 0xACAC 10304 bytes