Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b9fdecef08ca8d9…

MALICIOUS

PDF

42.8 KB Created: 2020-08-24 13:12:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 044f411f53bb5dedc30d659a45360371 SHA-1: 649043558d0552755d860a2f9c00c61c38951e14 SHA-256: 1b9fdecef08ca8d9597b0b09c0ec4628e47f596cce81c480f06c33bb0a40d521
150 Risk Score

Malware Insights

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

The PDF document contains a significant number of embedded links, with a critical heuristic firing indicating it's a malicious redirector. One of the primary links, 'https://ttraff.cc/pify?keyword=agroecology+fao+pdf', is identified as a malicious redirector. Another embedded URL, 'http://guwifubow.gsuitegurus.com/uploads/1/3/2/3/132302782/a287509.pdf', is also present. The document body contains garbled text but includes the malicious redirector URL, suggesting a lure to external malicious content.

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/pify?keyword=agroecology+fao+pdf
    • http://guwifubow.gsuitegurus.com/uploads/1/3/2/3/132302782/a287509.pdf
    • https://cdn.shopify.com/s/files/1/0433/3142/0319/files/79357907344.pdf
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/expense_report_applications.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/59485921090.pdf
    • https://cdn.shopify.com/s/files/1/0431/9451/5614/files/diagnosis_of_bacterial_diseases.pdf
    • https://cdn.shopify.com/s/files/1/0463/7773/0209/files/audio_songs_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7543/6705/files/79790527484.pdf
    • https://cdn.shopify.com/s/files/1/0441/3269/6216/files/pudobasu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2471/8746/files/vitopetedijojidaraziximoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/aaos_back_conditioning_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/lonuwojutudaminib.pdf
    • https://cdn.shopify.com/s/files/1/0465/0608/2454/files/busch_gardens_tampa_park_map.pdf
    • https://cdn.shopify.com/s/files/1/0433/9390/8892/files/22214217636.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_off00006b8d.bin
1cb450d60f93508b980a84305a544156abfc1e3b552019e7afa3b4fd32bdfd74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8D 5236 bytes
font_01_sfnt_off00007d6c.bin
c2c75c1febda13862ee5f577eb2690d72165769e5cd6a7157e0a60b06427c0d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6C 9776 bytes

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