Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bcf4207996b0e62…

MALICIOUS

PDF

46.0 KB Created: 2020-08-27 15:06:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 611ae41bf79609adf885e4016b874f97 SHA-1: cd61001b5220489e8376b31172637da42182f401 SHA-256: 7bcf4207996b0e629cb8bfe9b8c07ff99f4e91c3e823c1423a3f0bceaaf09f90
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to known malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=hip+stretches+for+runners. The document body, though partially corrupted, also contains this URL and other Shopify URLs, suggesting a lure to external content. The attack pattern is a phishing attempt using a malicious link.

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=hip+stretches+for+runners
    • http://files.typfy.com/uploads/1/3/1/4/131437689/zakovokipupopomanid.pdf
    • http://files.blog.everythingconnects.org/uploads/1/3/0/8/130814297/fidodapunixugut_gutekovabawun_kutinaxo.pdf
    • http://files.newwoodfordhs.com/uploads/1/3/0/8/130813645/bcabcfeecafbe.pdf
    • http://mupoju.1stpresbyterianiselin.org/uploads/1/3/1/6/131637240/zuwiluxepof-gijusiteni-balirixugesan-lesak.pdf
    • http://wifuviwa.aerofamilyhealth.com/uploads/1/3/1/6/131606407/1168144.pdf
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/livre_guide_touristique_new_york.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2981/files/18258985817.pdf
    • https://cdn.shopify.com/s/files/1/0431/1914/9216/files/mimekisufo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/573372864.pdf
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/transformers_g1_characters_autobots.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9651/files/2936221180.pdf
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/82487988687.pdf
    • https://cdn.shopify.com/s/files/1/0439/4981/8024/files/calculus_single_and_multivariable_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/1336/6182/files/logo_quiz_ultimate_answers_level_41.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/72499053999.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_off00006b11.bin
facfa5b8c43cc566840d355d7219f4ee0faa77b6c203d2f5993c2f86f191576e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B11 4704 bytes
font_01_sfnt_off00007b05.bin
8710d06d4fe7dd0a388a280699e7e6c117cf70b79070d8b26cbe33b4c1795d04
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B05 10008 bytes
font_02_sfnt_off00009d0e.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D0E 4324 bytes