Malicious PDF — malware analysis report

Static analysis result for SHA-256 9338140a0a56d963…

MALICIOUS

PDF

49.1 KB Created: 2020-09-01 16:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ca0b323ede0103eb64cb017efde57b6 SHA-1: 522262a92d83422e8ac2fb645dd8432da5243385 SHA-256: 9338140a0a56d96324ad925124f61a9c7e8eed5c6988d7464654d590e9f20c79
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=closed+cell+foam+sheets+uk'. This indicates the document's primary purpose is to redirect the user to a potentially harmful site. The presence of numerous other links, identified by the PDF_SEO_LINK_FARM heuristic, further supports a malicious intent to drive traffic to external resources. No scripts were extracted from this sample.

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=closed+cell+foam+sheets+uk
    • https://static.usrfiles.com/ugd/0e9fc2_df74d888baec4c16af4e5bfdc7bed5de.pdf
    • https://static.usrfiles.com/ugd/04e6f9_131e44e43d9348a6abdb7e1b8d4fd1dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_7295b7dca1ec4c1ea5e646ec88bd6e5a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b88a168183e74e4495651ea79352d3bc.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_bdaf223bab0244598542db695f3d65e0.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdf
    • https://cdn.shopify.com/s/files/1/0438/3201/7058/files/nobedofewe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6690/8054/files/bangalore_days_tamil_movie_songs.pdf
    • https://cdn.shopify.com/s/files/1/0438/4056/9509/files/apache_ant_salesforce.pdf
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/93777921508.pdf
    • https://cdn.shopify.com/s/files/1/0435/4388/8023/files/larovedisifazafaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/43522031061.pdf
    • https://cdn.shopify.com/s/files/1/0431/8163/7794/files/45294842841.pdf
    • https://cdn.shopify.com/s/files/1/0432/2151/6445/files/allen_bradley_micrologix_1500_software.pdf
    • https://cdn.shopify.com/s/files/1/0435/6790/6977/files/62682561921.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/mindtap_microeconomics_answers_chapter_6.pdf
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/aerial_lift_osha.pdf
    • https://cdn.shopify.com/s/files/1/0446/6917/3923/files/rise_against_savior_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/5737/1546/files/86012282513.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/hungry_shark_evolution_mod_hack.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/
    • https://cdn.shopify.com/s/files/1/0432/2151/6445/files/allen_bradley_micrologix_1500

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081c9.bin
3d9be1d078bb372c7f0184328551e072d69e13801cae378cf7770f5723539e96
pdf-font-stream PDF embedded font (sfnt) at offset 0x81C9 5136 bytes
font_01_sfnt_off0000931f.bin
e98aa761cf6372e3a72982c82b3bee707142ad7e9b905b26354134687be12d63
pdf-font-stream PDF embedded font (sfnt) at offset 0x931F 10584 bytes