Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b1f055696b8bc48…

MALICIOUS

PDF

39.2 KB Created: 2020-09-10 01:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3507c4334e1fcb0b31c0b271d687531 SHA-1: 598c0f248400914f27e35a2b37ad7b9d6205698a SHA-256: 8b1f055696b8bc489594a10133a9aca3a5c76c090ad2aa0feae1a5be6465c0f8
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The primary URL, https://ttraff.link/wix?keyword=aerobic+step+exercise+stepper+platform, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other suspicious PDF download links, suggesting a lure for phishing or malware delivery. No scripts were extracted, but the presence of the malicious redirector is sufficient evidence for a high-confidence assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 2

  • 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.
  • 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.link/wix?keyword=aerobic+step+exercise+stepper+platform
    • http://files.livingsoulplete.com/uploads/1/3/1/3/131381464/pozukepun-fewapunafijaba-bifuvewadotolik-vuvozeja.pdf
    • http://rudomame.lastangelstattoos.com/uploads/1/3/1/6/131606000/6cadf82b2.pdf
    • http://files.trendclothinginc.com/uploads/1/3/1/4/131437523/xarusi.pdf
    • http://gobow.jeromecustoms.com/uploads/1/3/1/1/131164250/webefadudeme.pdf
    • http://files.theglamstationspa.com/uploads/1/3/1/4/131453198/zutilevugetuj.pdf
    • http://files.pelhamhealthcareassociates.com/uploads/1/3/1/3/131379246/kariwosatasis.pdf
    • https://cdn.shopify.com/s/files/1/0436/4910/6080/files/46008572189.pdf
    • https://cdn.shopify.com/s/files/1/0429/3417/3859/files/dcs_world_rafale.pdf
    • https://cdn.shopify.com/s/files/1/0434/1297/9879/files/7457450019.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_off00005d1e.bin
476e8fb715ebf9befcaf80811a6954afc5eab48a72beb6991eb0dfc58a65242b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1E 5360 bytes
font_01_sfnt_off00006f43.bin
3b7cfd51b25132999e7ad317d1b103b80eae7a210cbeac48a8585cb09799e1af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F43 9592 bytes

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