Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1c6119451b6491…

MALICIOUS

PDF

34.6 KB Created: 2020-11-06 03:48:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d6cad5fdaaa8e8bdf7092614cdc85ee SHA-1: 0bd1041c5e45c69280598c44e93eb12d2ced540e SHA-256: ff1c6119451b6491bf32238642c78b681f46b3bce50790b7b75f14d56b39fb47
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many of which are dynamically generated and point to potentially malicious domains. The document body, though heavily obfuscated, contains a URL that appears to be a search query for a product manual, suggesting a lure to a phishing or malware distribution site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/aws?keyword=haier+washing+machine+manual+rwt350aw
    • https://jifurutirijiguj.weebly.com/uploads/1/3/4/5/134528482/4772347.pdf
    • https://welofubevi.weebly.com/uploads/1/3/1/8/131856084/wivokanogexa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6d7c7898-50cc-42b1-8f4e-bcda74d9c7f7/96822982632.pdf
    • https://uploads.strikinglycdn.com/files/c369af3d-58be-4c60-a86c-18e2c97cbd84/70593926404.pdf
    • https://uploads.strikinglycdn.com/files/50d0e8cb-0312-4171-8170-7a7a274bd2e4/96088423705.pdf
    • https://uploads.strikinglycdn.com/files/229d3444-8cb9-49da-ad98-194dc7d260b6/49656511944.pdf
    • https://uploads.strikinglycdn.com/files/3180099a-5643-46f3-96e4-6adfbb8d5ea1/baptist_hymnal_with_tonic_solfa.pdf
    • https://uploads.strikinglycdn.com/files/22dddf36-7f22-4a07-9319-747a7028c72f/dekaputip.pdf
    • https://uploads.strikinglycdn.com/files/57215503-9f03-4977-af62-3a56eb4676a6/fepibewore.pdf
    • https://uploads.strikinglycdn.com/files/f2ff9f7c-3c99-4dee-9ca9-e66a33c3b60d/mojiwese.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007741.bin
f46ec4dbfa6840d564b7c433e5426b3d8a777166a218da3e6fd3760e0669e19c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7741 5468 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.