Malicious PDF — malware analysis report

Static analysis result for SHA-256 8658f753f49bd864…

MALICIOUS

PDF

42.6 KB Created: 2020-08-25 06:52:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bae9c58d4dba11572393ebb5299b7245 SHA-1: 6521224a5966d38906dbcba4c057d86c644f4045 SHA-256: 8658f753f49bd864bb2f0df0b325e29d7b3e169b87161abe2becdd7e8c560882
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=cell+organelle+worksheet, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com and other domains, suggesting a broad distribution effort.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=cell+organelle+worksheet
    • http://files.maritzavives.com/uploads/1/3/1/3/131380258/6185628.pdf
    • http://files.oxygenjewelry.com/uploads/1/3/1/4/131454316/7658139.pdf
    • http://nejodev.shadecreekwatershed.org/uploads/1/3/2/7/132740480/zagumusebawupudake.pdf
    • http://nuwoje.concoursllc.us/uploads/1/3/0/9/130969754/6937173.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/sccm_endpoint_protection_not_reporting.pdf
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/fepozoreravizazuxadobag.pdf
    • https://cdn.shopify.com/s/files/1/0451/4293/3657/files/absalom_absalom_romana.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/carbohydrate_metabolism_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/28565937403.pdf
    • https://cdn.shopify.com/s/files/1/0432/1063/7475/files/kipabegofuze.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokesinoximirupabujikupoj.pdf
    • https://cdn.shopify.com/s/files/1/0447/8317/3798/files/behringer_europower_ep4000.pdf
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/46280718566.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_off000069e3.bin
aea8aab027a4556212cc422185dc65099cc9de3c506df82e6a998c5fd1a91c5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69E3 5008 bytes
font_01_sfnt_off00007af4.bin
8db20119819363113a1fb678730caa7838a7ad9e20748755da5a4d721939954d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF4 10264 bytes

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