Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab101d4ff299c4c…

MALICIOUS

PDF

37.1 KB Created: 2020-08-26 09:06:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c5f1474775f2a5a734bf1c810b06aed SHA-1: 25b6bb08bf41a5455ef60328f2939fcdee233f1b SHA-256: fab101d4ff299c4c8634cd20eddb17f8699b4cd8e6a2045375b2584883544761
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is designed to host a link farm, likely to distribute malicious content or phish users. The primary malicious URL identified is https://ttraff.ru/pify?keyword=appareil+respiratoire+cm2.

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=appareil+respiratoire+cm2
    • http://files.katiephomes.com/uploads/1/3/1/3/131381237/vitomenujuvifagu.pdf
    • http://mamul.grimestrading.com/uploads/1/3/0/7/130776688/9644225.pdf
    • https://cdn.shopify.com/s/files/1/0455/7848/5925/files/old_apostolic_church_beliefs.pdf
    • https://cdn.shopify.com/s/files/1/0429/4708/4454/files/catalogue_marjane_janvier_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/esclerosis_multiple_signos_y_sintomas.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/fortune_at_the_bottom_of_the_pyramid_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/the_matrix_dezionized.pdf
    • https://cdn.shopify.com/s/files/1/0435/1062/8511/files/72843580338.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3641/files/76033791057.pdf
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/38018283128.pdf
    • https://cdn.shopify.com/s/files/1/0431/1420/1241/files/6156605553.pdf
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/bed_bug_blood_on_sheets_pictures.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_off000051b5.bin
438e66fbb33e12e527137195b6c0c3f4903cc8d17f46cae6f6efc757a9cf54f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x51B5 5200 bytes
font_01_sfnt_off00006347.bin
554b6f44492a67c1f54a709a2dba97d2ada890ddbad1a34deda88763651c3af8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 11080 bytes