Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e3652046d9450f…

MALICIOUS

PDF

73.6 KB Created: 2020-08-06 04:20:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90b7b80bfeb609c24fac56dc0e32ffba SHA-1: 8f598aaeae04f123b6b4a70b74665f2f88a14ae1 SHA-256: 58e3652046d9450f1b3319816fc14577b4481e7fef530d8a77be0572dd334764
160 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a malicious redirector and part of a link farm, specifically designed as an advance-fee scam lure. The document body, though heavily obfuscated, contains a URL that is likely the primary vector for the attack. This URL, 'https://ttraff.com/pify?keyword=buckminster+fuller+critical+path+pdf', is flagged as a malicious redirector.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.com/pify?keyword=buckminster+fuller+critical+path+pdf
    • http://files.icha.org/uploads/1/3/2/7/132740693/fomezatuxolikuwus.pdf
    • http://files.brandonmoorecomposition.com/uploads/1/3/1/4/131437822/d624659de81a.pdf
    • http://files.sachagrosselart.com/uploads/1/3/0/9/130969209/belizifimekedaxuwuzu.pdf
    • http://files.keikosensei.com/uploads/1/3/2/6/132681343/2458643.pdf
    • http://files.rowdyrelieffund.org/uploads/1/3/1/6/131636612/462228.pdf
    • https://cdn.shopify.com/s/files/1/0433/6464/7077/files/42155940682.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/13439435110.pdf
    • https://cdn.shopify.com/s/files/1/0430/8356/3162/files/33984798756.pdf
    • https://cdn.shopify.com/s/files/1/0438/3480/2333/files/alberta_road_map.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/57216600331.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/85197393814.pdf
    • https://cdn.shopify.com/s/files/1/0450/9502/6840/files/abacus_for_kids.pdf
    • https://cdn.shopify.com/s/files/1/0434/3051/0742/files/rapidex_english_speaking_course_in_urdu_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/kadifunodalokuxixoluvunix.pdf
    • https://cdn.shopify.com/s/files/1/0430/7232/3737/files/lodewowarivusoratodur.pdf
    • https://cdn.shopify.com/s/files/1/0429/1067/9206/files/34339195753.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/mozezatumazazurekut.pdf
    • https://cdn.shopify.com/s/files/1/0434/2002/4989/files/abraham_maslow_teoria_motivacional.pdf
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/something_corporate_konstantine.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_off0000e25a.bin
542265bf6c639421801446a87f80c52c1f869d67fe9ef2e73816ea2e2213f9b1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE25A 5508 bytes
font_01_sfnt_off0000f4f0.bin
c6b862fdc786a39c74d16907e5e09c2ca68eee70cb9086005a739fdd4b8c8fe1
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F0 10452 bytes