Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25f9808051dcb97…

MALICIOUS

PDF

36.2 KB Created: 2020-08-14 02:07:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b32da650024ba824504df50e401f2f6d SHA-1: 68dc905f8c9ba4f4cd261cb9505976643cc8826e SHA-256: e25f9808051dcb976048f16a3ae7b5c35517f547a164f1405ce2d6650970c7ee
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic identifying it as a link farm designed to redirect users. One of the primary links, 'https://ttraff.com/wb?keyword=the%20culture%20map%20pdf%20download', is flagged as a known malicious redirector. While many other links point to benign Shopify domains, the presence of the malicious redirector and the overall structure suggest a phishing or malware distribution attempt.

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/wb?keyword=the%20culture%20map%20pdf%20download
    • http://files.aztala.com/uploads/1/3/0/8/130873758/6931326.pdf
    • http://files.catherinebutlerart.com/uploads/1/3/1/3/131380001/salede_pozopovovodapat_vozijuw.pdf
    • http://fepem.fcdetail.com/uploads/1/3/1/4/131483025/5435119.pdf
    • http://files.ourchildrensfund.com/uploads/1/3/0/7/130738998/a4a95affe5cc29c.pdf
    • http://files.northmiresouces.org/uploads/1/3/2/8/132815342/gekovam.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/sipewapururaga.pdf
    • https://cdn.shopify.com/s/files/1/0435/6158/2741/files/pipeline_infrastructure_renewal_and_asset_management.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71419102660.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/95127337336.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/mewusebetijurupidow.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/petasatazoxakigakefunuxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/47765357901.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/66993888212.pdf
    • https://cdn.shopify.com/s/files/1/0439/4385/4235/files/d_d_5e_monsters_by_cr.pdf
    • https://cdn.shopify.com/s/files/1/0437/6231/9521/files/osrs_amethyst_broad_bolts.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_off00005049.bin
77f6b44e20c2f4af1e8f022662b645bd0f6a37a640800d4ee577b9b0c6d46393		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5049 5260 bytes
font_01_sfnt_off00006219.bin
152caa76c166401f3729f89ae27b0b7ef045f3b3f7defe74316a5d81c1015038		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6219 10016 bytes

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