Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9322a79844bf941…

MALICIOUS

PDF

43.8 KB Created: 2020-08-14 11:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f9cffb6d90fca760b0e1152c4a6882c SHA-1: 407c8ec9faede7f41c3402215fbe31efc53cbe8e SHA-256: a9322a79844bf941f7e951bad462abe5e092f1dc4827646a7a52a4e5efd6725b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'recipe guide'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation. The primary malicious IOC is the redirector URL.

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=chalice+of+opulence+recipe+guide
    • http://files.besedin.org/uploads/1/3/2/8/132814680/mamovuwowibufulituze.pdf
    • http://files.southhavencommunitychurch.org/uploads/1/3/0/8/130814298/nuzub.pdf
    • http://files.inszczecin.com/uploads/1/3/1/4/131409498/9092155.pdf
    • http://pulebovib.prohibition-spirits.com/uploads/1/3/1/4/131438079/2593911.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/rebemonopa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/pazotirorinisiwik.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/92033084166.pdf
    • https://cdn.shopify.com/s/files/1/0433/7762/3201/files/mac_kill_process.pdf
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/69038739874.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/jadakivitunuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/5795/5487/files/97306909641.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/excel_data_analysis_tool.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/barron_s_sat_chemistry_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/xolowovejonofixada.pdf
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/97882611414.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/nejegab.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fa9.bin
7580ce97cbc3e37eafb103862391f8971d48576d361f1487b434a5904d0675d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA9 3112 bytes
font_01_sfnt_off00006acc.bin
440190214766a4e1946d0265ebbfb370b54230303445e75af63fb3219894d7b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACC 5144 bytes
font_02_sfnt_off00007c3e.bin
0a1f660cc1daf5fce61cfcb0acc3f3f7901ac3afc27c2accac8e279c850950f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3E 10792 bytes

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