Malicious PDF — malware analysis report

Static analysis result for SHA-256 bebc77b468c07237…

MALICIOUS

PDF

44.6 KB Created: 2020-09-01 21:29:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b0788f1e0e7d8de6f1f6cd8b1458924 SHA-1: 02579249d988706d22e63b7fefc7b763bbe9ad4f SHA-256: bebc77b468c072371f0d520a74fa1193084cca13ce1a46c391bcd2863c0c5443
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=barramundi+nutritional+information'. This URL is likely part of a phishing or scam campaign, attempting to lure users with seemingly innocuous content. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, but the primary malicious activity appears to be the redirection to the malicious 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.com/wix?keyword=barramundi+nutritional+information
    • https://cdn.shopify.com/s/files/1/0436/4586/2041/files/95684664068.pdf
    • https://cdn.shopify.com/s/files/1/0435/6574/4287/files/animal_taxonomy_and_systematics.pdf
    • https://cdn.shopify.com/s/files/1/0429/5262/2236/files/26275334378.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3961/files/runescape_barbarian_assault_defender_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/7095/5415/files/wibuwetepiguzurok.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_28ba816a39914996bd883354edd3cf70.pdf
    • https://static.usrfiles.com/ugd/accd1f_ed07f72dca5746ca944f79c8e093c71b.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_974b72c353ab41c587e3812bdd8aa711.pdf
    • https://static.usrfiles.com/ugd/384ea4_f23bd22c859f43f292cd386ef58a32ef.pdf
    • https://static.usrfiles.com/ugd/fc840b_99dee18dd76645b2a5341c8f41a18e62.pdf
    • https://cdn.shopify.com/s/files/1/0437/5796/1365/files/egd_anesthesia_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/32852150853.pdf
    • https://cdn.shopify.com/s/files/1/0437/4586/9985/files/69769319841.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/mizakufemoxopikoxive.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/wrong_turn_1_telugu_full_movie.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_off0000646b.bin
dc1ecdae03217b6b7786ef9e54a07eb58b3e47e8853a3764cc5fb3b241024daa
pdf-font-stream PDF embedded font (sfnt) at offset 0x646B 4688 bytes
font_01_sfnt_off0000742d.bin
9d78669d8534a1e293c2adbe6c21e1e99db505a3bcc3898dcd7312ed33835485
pdf-font-stream PDF embedded font (sfnt) at offset 0x742D 10288 bytes
font_02_sfnt_off00009756.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9756 4324 bytes