Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1e4268aa60b3ab…

MALICIOUS

PDF

44.4 KB Created: 2020-08-08 19:13:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d39ad5681b478852c44f61536e1fe89 SHA-1: 3bb65441e361e494179e40dff7009a9fa87756da SHA-256: ea1e4268aa60b3ab6ec4ba1f107582c75590d1303d6804ce5698ccb4cfcd5ee6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=fusionner+2+pdf+sans+logiciel', is designed to lure users into clicking it by pretending to offer a PDF merging tool. The file also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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.cc/pify?keyword=fusionner+2+pdf+sans+logiciel
    • http://files.newportgmc.com/uploads/1/3/1/3/131398110/b0acd6a6e642.pdf
    • http://files.richlandtownfireco.com/uploads/1/3/1/4/131453365/26c9d08.pdf
    • http://files.beautyandthebuddha.com/uploads/1/3/1/3/131398308/81ca475903.pdf
    • http://files.fbclakebenton.org/uploads/1/3/1/3/131384663/zazalasolosajim.pdf
    • https://cdn.shopify.com/s/files/1/0436/4664/8473/files/sujet_brevet_2020_histoire_geo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5552762143.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3912/files/box_plot_in_python.pdf
    • https://cdn.shopify.com/s/files/1/0431/0830/3002/files/kenmore_600_series_washer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/76177529378.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/25340184420.pdf
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/nilenalurafik.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/zakupujujemufuwo.pdf
    • https://cdn.shopify.com/s/files/1/0455/7661/8149/files/pdf_file_convert_to_powerpoint.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/pavukomugesokowufitopawi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/sisulomumudobixones.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5377/files/94380135300.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/48343364059.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/lozodamuvosivupojiw.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_off00006b3f.bin
1cae0a2571963879ccf12713da08507759590af6f414b7100b9c1ee694764775
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3F 5412 bytes
font_01_sfnt_off00007db9.bin
0c8f23b65748e3529891544821e36ed8ee8e3b648bc604ea9b035759d2ec0911
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB9 11824 bytes