Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e5e6e6a3ced040…

MALICIOUS

PDF

52.3 KB Created: 2020-07-29 18:40:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a426eb0e466c91b6459462e44afc99e SHA-1: 82bb3ee42fd6013dc6c9cb7b95c522173b725e43 SHA-256: 35e5e6e6a3ced040786e4ee75c40652660198b52685ce4d49e20aff531d26d33
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with heuristics indicating it is a link farm designed to redirect users. One of the primary links points to 'ttraff.com', which is identified as a known malicious redirector. The document body is heavily obfuscated and appears to be junk data, suggesting the primary purpose is to host these malicious links.

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/pify?keyword=naming+alkenes+practice+pdf
    • http://files.necaconservation.org/uploads/1/3/0/7/130775537/6ddaa8a66d56c34.pdf
    • http://files.akarchitecturestudio.com/uploads/1/3/2/6/132682627/xutuxutoj_vimupe_patipazotevo_makepixuj.pdf
    • http://files.bandenservice4u.nl/uploads/1/3/1/8/131871602/a2951691e6c5f.pdf
    • https://cdn.shopify.com/s/files/1/0439/3598/9915/files/gepaforotoloxevolujubo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/digadaxojodivuxof.pdf
    • https://cdn.shopify.com/s/files/1/0433/6903/7982/files/55815826081.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/nezifijalavuxowalixumene.pdf
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/subepekuxakusuwugotevot.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/nuwupidofawisorimemiwab.pdf
    • https://cdn.shopify.com/s/files/1/0431/1325/0972/files/fukibajelepojozisoti.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
    • https://cdn.shopify.com/s/files/1/0437/4410/0506/files/birilu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32296476761.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/22372748736.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_off000089f4.bin
6b13f53b8641ec8110446be9b5d579d7dc57be5bdec3cbea52e00bba50d1adc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89F4 5188 bytes
font_01_sfnt_off00009b81.bin
b7cbdcfdf119e0c2ab88df8bb15e0261284de0fde7aa7bdc928386aa444930e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B81 12600 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.