Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3d75590af14d2e…

MALICIOUS

PDF

56.4 KB Created: 2020-08-12 10:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c173cb066b0e2a56104d74d334109da8 SHA-1: 02e266ce92189c043156c40c520cd00cdb05ca81 SHA-256: 4e3d75590af14d2e6dd72b07a0f9c6b0e0cef998d02f2c08065df86e608ed6b9
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/wb?keyword=pharmaceutical%20industry%20in%20egypt%202018%20pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to the pharmaceutical industry and the malicious URL, suggesting a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=pharmaceutical%20industry%20in%20egypt%202018%20pdf
    • http://files.oshkoshmainstreetmusicfestival.com/uploads/1/3/1/4/131482887/b22fb.pdf
    • http://files.suemesserstudios.com/uploads/1/3/2/6/132695278/kigatojajidonu.pdf
    • http://files.lovebodywisdom.com/uploads/1/3/1/8/131856919/wevefomowisi.pdf
    • http://files.benevaanimalhospital.com/uploads/1/3/0/7/130775953/8257280.pdf
    • https://cdn.shopify.com/s/files/1/0429/7120/1699/files/satojavorupixirarifiva.pdf
    • https://cdn.shopify.com/s/files/1/0434/5685/6230/files/delete_changes_git.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/sixunomaxijajig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/chemical_oxygen_demand_vs_biological_oxygen_demand.pdf
    • https://cdn.shopify.com/s/files/1/0431/0623/8626/files/more_tnt_mod_1._7._10.pdf
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/67560040524.pdf
    • https://cdn.shopify.com/s/files/1/0448/0460/4066/files/rauland_responder_4000_installation_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/cerebrovascular_event.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/50460292872.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.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_off00009a33.bin
9a73e062986ea7aa47ca3e8ab9867e6e4c31e7171196f05bfbbc24ce373959d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A33 6192 bytes
font_01_sfnt_off0000af2a.bin
f2b3b0ab161477e4f8c78fa621ee7a5bed2d6c446c5cef9c890cbc3b310d4c5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF2A 10992 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.