Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e7b522b77977f8…

MALICIOUS

PDF

85.8 KB Created: 2020-08-10 03:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c367817f4eb98f2569f5040bc2b9015 SHA-1: ede335b6275bd6adedda0c0389c20d13f5769484 SHA-256: e7e7b522b77977f87c926f971f48b876933533005a76c0479d0627018b98f7f1
160 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Bible quiz questions and answers' which is a common tactic for advance-fee scams. It embeds multiple links, including one to a known malicious redirector at ttraff.ru. The file also functions as a link farm, directing users to numerous other PDFs hosted on platforms like Shopify, likely to spread malicious content or engage in SEO manipulation.

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.ru/pify?keyword=bible+quiz+questions+and+answers+from+luke+pdf
    • http://files.cofcmesa.com/uploads/1/3/2/3/132303382/a6e01b8430d1.pdf
    • http://files.hirethespires.com/uploads/1/3/2/7/132710732/f69ff1cc484a.pdf
    • http://files.hannahcookmarketing.com/uploads/1/3/2/7/132740384/3f7c8.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0087/files/84576195713.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/swerve_driving_school.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1101/files/bonob.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/wapomab.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/fusatovowavavojiladufif.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/jepofexoxusesukagepazi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/93738306349.pdf
    • https://cdn.shopify.com/s/files/1/0432/0886/8001/files/career_aptitude_test_for_middle_school_students.pdf
    • https://cdn.shopify.com/s/files/1/0430/3853/9927/files/titulomibowesem.pdf
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/nepuridekisorowem.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_off000113e3.bin
a1500e542bfd97931811bc431877e8565b0b2f2afbf7a1ba5930a7b129e599e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113E3 5708 bytes
font_01_sfnt_off0001274d.bin
a15e893e463bb37617f4d14b219264397566b50b88dadaa4b32ec6a73e4297b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1274D 10040 bytes

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