Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9f2231441434e6…

MALICIOUS

PDF

45.3 KB Created: 2020-08-25 13:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 931b089d0547ccf1afee5fee888c95a8 SHA-1: bc9dda5550b9260b2e8e466733899c23580e4d6a SHA-256: ed9f2231441434e6a1fb9afd28d723f419d8d4f1bcd71f97126a5f5a05d7f119
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'Fromm puppy food feeding guide' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further indicates malicious intent to drive traffic to external resources.

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=fromm+puppy+food+feeding+guide
    • http://files.smallbatchspreads.net/uploads/1/3/1/8/131871992/susonafenig.pdf
    • http://files.whldesign.com/uploads/1/3/1/8/131871586/8d4cf5c8.pdf
    • http://wawuku.hreynoldsdesign.com/uploads/1/3/0/9/130969762/8309454.pdf
    • http://files.silverleafoffice.com/uploads/1/3/0/7/130775831/5775590.pdf
    • http://files.maritzavives.com/uploads/1/3/0/7/130776103/sasebok_donowog.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/63233225784.pdf
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/8389642311.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/changing_pdf_text_color.pdf
    • https://cdn.shopify.com/s/files/1/0436/1951/6579/files/printable_letter_e_tracing_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0435/8543/7853/files/zunexelakatisetu.pdf
    • https://cdn.shopify.com/s/files/1/0439/3461/3659/files/diagonalization_of_symmetric_matrices.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/56747774590.pdf
    • https://cdn.shopify.com/s/files/1/0433/6841/5400/files/73157198449.pdf
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/36367200828.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/android_studio_google_maps_v2_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/novifumojexamoke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9350/8771/files/depeguteludejadi.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_off00007440.bin
664524d3c0271d7bee69251daf1301cc645e66a684f357f66115a62dd2554ff4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7440 4996 bytes
font_01_sfnt_off00008541.bin
3df0c4af75f67b8503de256ac9e42bda19221fbbe4055b028625a4a490a61ca8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8541 10352 bytes

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