Malicious PDF — malware analysis report

Static analysis result for SHA-256 951a04f91d34720a…

MALICIOUS

PDF

35.9 KB Created: 2020-08-17 10:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc93fee81e47594080671a9a8d657cf4 SHA-1: dc02ba678c54266c0d2b4061136c934236f8ac5a SHA-256: 951a04f91d34720abd9a0ee3853a27d44f7d18cb1a8d264f9f5c8a02bc7d61dc
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=barsaat+1995+movie++in+mp4, which is linked to known malicious infrastructure. The document body contains garbled text but also includes the same malicious URL, suggesting it is intentionally placed to lure victims. The presence of numerous links, many pointing to Shopify domains but also including other unknown domains, indicates a strategy to obscure the ultimate destination or to leverage SEO tactics for distribution.

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.ru/pify?keyword=barsaat+1995+movie++in+mp4
    • http://matagena.kaitlinkaufman.com/uploads/1/3/0/7/130739309/raxisikodadomu-jawifogisi-duwukobar.pdf
    • http://pogumevek.missionpilgrims.com/uploads/1/3/1/6/131637881/74f8f313585135.pdf
    • http://zaladarup.ondragonwingsstudio.com/uploads/1/3/1/0/131070450/809f1ac3d04.pdf
    • http://topaduja.barnfeet.com/uploads/1/3/0/7/130739777/d9c1cc7b998.pdf
    • https://cdn.shopify.com/s/files/1/0439/8402/7806/files/xesadarapax.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/dufetosun.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/abac_spinn_air_compressor_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nemubowakupupoda.pdf
    • https://cdn.shopify.com/s/files/1/0440/9108/0869/files/82546602493.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/doxofa.pdf
    • https://cdn.shopify.com/s/files/1/0440/7666/2949/files/4057325189.pdf
    • https://cdn.shopify.com/s/files/1/0429/9328/7321/files/71690084153.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/72499177727.pdf
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/basic_english_grammar_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0438/7006/0704/files/57579347476.pdf
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/fitudixegefukegojupogi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7292/9435/files/folaxebejolun.pdf
    • https://cdn.shopify.com/s/files/1/0435/6951/2607/files/benasebosaxude.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_off00004e41.bin
2d68d9383b0c50cf7ae469b81b9b620918e1e8ed040b86a2e5d40a036b7b9463
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E41 5464 bytes
font_01_sfnt_off000060cc.bin
aecf118b935ea0ac955cd47f00cc019fab6dbe4d688c5c107db1da970339a7cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x60CC 9924 bytes