Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3c80d919933c657…

MALICIOUS

PDF

162.5 KB Created: 2020-08-07 04:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 461fcd04cd7603e03c05fd83cf109092 SHA-1: c1597e693a4536a333006cc5f625078e1ae918da SHA-256: d3c80d919933c657c932c717b4a021b77998f43af0e4bb27a033430168895f7b
60 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as a "Campbell Biology 10th test bank pdf". This indicates a phishing or social engineering attempt to direct the user to malicious infrastructure. No scripts were extracted, but the heuristic firing and the embedded URL strongly suggest a malicious intent.

Heuristics 2

  • 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.
  • 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=campbell+biology+10th+test+bank+pdf
    • http://files.anthonyscafebistro.com/uploads/1/3/1/3/131382134/134fe3.pdf
    • http://files.dogbitesbakery.com/uploads/1/3/0/7/130738779/pisowew-vesutiregatuf.pdf
    • http://files.bcraftmath.com/uploads/1/3/0/9/130969172/52f41.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/21507701674.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/16935368814.pdf
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/mimuzogebadajuvabidenevo.pdf
    • https://cdn.shopify.com/s/files/1/0436/5778/9605/files/92047703202.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/zuxasuwomujuvenemufuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/15640173429.pdf
    • https://cdn.shopify.com/s/files/1/0439/8841/8718/files/kivawawi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/lowojapamix.pdf
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/cops_theme_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/6119/9526/files/17461441907.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/90664754525.pdf
    • https://cdn.shopify.com/s/files/1/0433/7978/5886/files/82969439465.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_off0002265c.bin
e27a13513fa05c31656f85887368481249aabf63f68bc6f51798d83e131bfdd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x2265C 5764 bytes
font_01_sfnt_off000239e0.bin
07e814d5518a512e496f71207ee6ea6ef4c97834c9a7c7ea6b4074515e57b9b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x239E0 14256 bytes
font_02_sfnt_off00026710.bin
d7dbcefd5a9d087f9dbd48d87e5b82950a900fa0f666d4a1f78598b818f3f613
pdf-font-stream PDF embedded font (sfnt) at offset 0x26710 16060 bytes