Malicious PDF — malware analysis report

Static analysis result for SHA-256 bedc1a84257b8887…

MALICIOUS

PDF

48.7 KB Created: 2020-08-08 12:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 054fadca5e8e74da580b2ff017826c4c SHA-1: df79a3db1317ef970e2501225d0afd3ab05328b8 SHA-256: bedc1a84257b88872d21ea4ef82159a37cdbc3b82c84ee7d2c83be341e7eebb9
128 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to the URL's keyword, suggesting a lure. The PDF also contains a large number of external links, as flagged by PDF_SEO_LINK_FARM, indicating a link farm or redirection strategy. The primary malicious IOC is the redirector URL.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=causes+of+abortion+in+cattle+pdf
    • http://files.bartlettandgoldgallery.co.nz/uploads/1/3/2/8/132814593/tipofa-zorugakasodam-zovilewoluxido.pdf
    • http://files.abplasticpro.com/uploads/1/3/0/7/130738512/lovakifazab.pdf
    • http://taviponu.dianestringamtolley.com/uploads/1/3/2/6/132682076/edab060fc.pdf
    • https://cdn.shopify.com/s/files/1/0440/2587/2549/files/varaxizosulojekomejatix.pdf
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/finor.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5552762143.pdf
    • https://cdn.shopify.com/s/files/1/0431/5430/9284/files/download_aadhaar_card_password.pdf
    • https://cdn.shopify.com/s/files/1/0432/5195/7923/files/mumela.pdf
    • https://cdn.shopify.com/s/files/1/0434/0006/9285/files/mathrubhumi_calendar_august_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/vegexakadiwugozim.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8280/files/73645687464.pdf
    • https://cdn.shopify.com/s/files/1/0434/4446/9927/files/bajiwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6108/4322/files/20793176937.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/24774890994.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2533/files/pukaledawezabafevizedug.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_off00007f92.bin
e2145261cac97539faf349b67240b839927ba1b06b1ea8fdd5fe6c70df0a3bcd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F92 5196 bytes
font_01_sfnt_off00009141.bin
84e2ec87a3a760313f7afbfa96c77a2314a7b81714087186cb566abf8d4a3689
pdf-font-stream PDF embedded font (sfnt) at offset 0x9141 10996 bytes