Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad3d57bf3afd8d0…

MALICIOUS

PDF

43.5 KB Created: 2020-09-03 04:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0542b7f73b76e4fd9799da7ce8c6f0c3 SHA-1: fd8889d5c645f413c5dde06644c4d081955491c6 SHA-256: 2ad3d57bf3afd8d03eea75e839e7e7dc0bac038720ef728b4a7a016bc10b36b2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link that redirects to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, appears to contain the same URL. This suggests a phishing or social engineering attempt to redirect the user to malicious content. The presence of a link farm heuristic further indicates a malicious intent to distribute links.

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/wix?keyword=ipmn+guidelines+2017
    • https://static.usrfiles.com/ugd/ca32a8_af684ebc6ac14b3bb3feb68d1d5ab53d.pdf
    • https://static.usrfiles.com/ugd/67e251_d74cbc75da7b44c68d4d681da5e52b3b.pdf
    • https://static.usrfiles.com/ugd/417718_c05ad7dae5b544c0961aaf24c447fbd2.pdf
    • https://static.usrfiles.com/ugd/b8c837_1de87f838e7b449388f40ad979f462a4.pdf
    • https://cdn.shopify.com/s/files/1/0449/9036/5864/files/qaseeda_burda_shareef_in_arabic.pdf
    • https://static.usrfiles.com/ugd/0a052f_8008795f38934c0d8b8daec0f91722e8.pdf
    • https://static.usrfiles.com/ugd/ea2f88_4295e1af83194265948c9d0ff8c199f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8aca27c7d4542239c51cec8aad82f48.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce9bef7a5b524514a2015b534cdf4826.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_ad486215498e476980958e7485c3abc7.pdf
    • https://static.usrfiles.com/ugd/0c4177_db905be991364819ba79cd641a049f78.pdf
    • https://static.usrfiles.com/ugd/b8c837_6fa801281d554b568b89f244f83bade6.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_off000064c3.bin
6daee78435e7db3b23c77220ccc687b2e59c65c3175d1cba1dc41e13f5f71818		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64C3 5316 bytes
font_01_sfnt_off000076e0.bin
e33ded686dcceef89f5c9868791526e3f98d2fe64d1af03fea3cd8573ec92a34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76E0 13524 bytes

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