Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a4eddf2e324a7a…

MALICIOUS

PDF

67.7 KB Created: 2020-08-11 22:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe1429c3aa11ee18ecc06e02f0b4e4a4 SHA-1: 4ffd32e44fce4d987676fdff51fd93f8a80e236f SHA-256: e5a4eddf2e324a7ab5dad7b0b0039db1c60a848055d5bab2abc503b91b48ab30
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=somatic+embryogenesis+pdf+2020', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to lure the user to malicious infrastructure. No scripts were extracted, limiting the analysis of further malicious behavior.

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=somatic+embryogenesis+pdf+2020
    • http://files.kofc206.org/uploads/1/3/1/4/131406391/6156525.pdf
    • http://files.thelightingsummit.com/uploads/1/3/1/6/131637136/56f2241d.pdf
    • http://semidef.yourmoneytravel.com/uploads/1/3/0/8/130874064/fovem_darejawozu_tefelikafimol_vokelobizisuj.pdf
    • http://files.greatlakesantiquesandartisans.com/uploads/1/3/0/9/130969499/raradu.pdf
    • http://files.nationincorporated.com/uploads/1/3/1/4/131482884/6275895.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13164506765.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/capitalism_and_freedom_summary.pdf
    • https://cdn.shopify.com/s/files/1/0449/9036/5864/files/spider_man_comic_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/9103/3250/files/thermal_physics_schroeder_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0435/7967/0689/files/88261449875.pdf
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/altivar_312_solar.pdf
    • https://cdn.shopify.com/s/files/1/0435/0004/4440/files/calikusu_english.pdf
    • https://cdn.shopify.com/s/files/1/0440/7027/3174/files/12313728356.pdf
    • https://cdn.shopify.com/s/files/1/0432/4543/7083/files/87762689063.pdf
    • https://cdn.shopify.com/s/files/1/0440/7050/2550/files/fipavitirudi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3918/6344/files/amazing_grace_notes_for_piano.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_off0000b8c2.bin
dcd8747d36185a5364f98847c97bbbfcc8e04a29acc9d3a62897d21747fd0b41
pdf-font-stream PDF embedded font (sfnt) at offset 0xB8C2 5848 bytes
font_01_sfnt_off0000cc80.bin
270f19559674d6043a973d2e48e08fb993180d6d8a55e87c43b7240325e30a77
pdf-font-stream PDF embedded font (sfnt) at offset 0xCC80 12396 bytes
font_02_sfnt_off0000f33d.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xF33D 4324 bytes