Malicious PDF — malware analysis report

Static analysis result for SHA-256 1774e201879bae95…

MALICIOUS

PDF

17.2 KB Created: 2019-05-03 05:14:27 +01:00 Authoring application: mPDF 5.7
MD5: 78c0c08986a38ca2d3f1e2fed1301b40 SHA-1: 934d66ced2a7ae6038cace5fdc36fe008cf9587b SHA-256: 1774e201879bae95548d53293fe301f565793e7fbc88bf0b83909fb7336b85af
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links point to external PDF files, suggesting an attempt to manipulate search engine results or distribute content. While the document body is heavily obfuscated, the presence of numerous links and the ML classifier's high confidence score indicate malicious intent. The primary attack vector appears to be social engineering via embedded links, likely leading to further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

Heuristics 2

  • 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 http://loaminoo.linkpc.net/3091097099092096/Black-Cat-White-Cat-by-Silvia-Borando.pdf
    • http://loaminoo.linkpc.net/2091096097096097/White-Women-the-Sex-Black-Men-Love-Why-White-Women-Are-Those-Choice-for-Cheating-Black-Men-by-Raymoni-Love.pdf
    • http://loaminoo.linkpc.net/2091096098091099/White-Women-The-Sex-Black-Men-Love-Why-White-Women-Is-the-Choice-for-Cheating-Black-Men-by-Raymoni-Love.pdf
    • http://loaminoo.linkpc.net/3090094094093092/Only-the-Ball-Was-White-A-History-of-Legendary-Black-Players-and-All-Black-Professional-Teams-by-Robert-W-Peterson.pdf
    • http://loaminoo.linkpc.net/3090092091097092/White-on-Black-on-White-by-Coleman-Dowell.pdf
    • http://loaminoo.linkpc.net/9092095094098098/White-Lies-and-Black-Markets-Evading-Metropolitan-Authority-in-Colonial-Suriname-1650-1800-by-Karwan-Fatah-Black.pdf
    • http://loaminoo.linkpc.net/2094099095095097/Black-and-White-by-Paige-Notaro.pdf
    • http://loaminoo.linkpc.net/7092092091091096/My-Life-In-Black-And-White-by-Kim-Izzo.pdf
    • http://loaminoo.linkpc.net/7094097090098093/Black-White-Other-by-Lise-Funderburg.pdf
    • http://loaminoo.linkpc.net/1099098095099098/Not-Just-Black-and-White-by-Lesley-Williams.pdf
    • http://loaminoo.linkpc.net/1091099090099096094/Not-Quite-Black-And-White-Not-Quite-1-by-Jonathan-Ying.pdf
    • http://loaminoo.linkpc.net/2091095098096095/Black-and-White-Vol-1-by-Taiyo-Matsumoto.pdf
    • http://loaminoo.linkpc.net/1092094092090090/Ashen-Black-Dawn-1-by-P-J-White.pdf
    • http://loaminoo.linkpc.net/3091098098099097/Black-and-White-by-Eric-Walters.pdf
    • http://loaminoo.linkpc.net/4095099096097098/Black-and-White-by-Gilbert-Sorrentino.pdf
    • http://loaminoo.linkpc.net/9099094092099095/Black-Is-the-New-White-by-Paul-Mooney.pdf
    • http://loaminoo.linkpc.net/9096099097092/Black-and-White-by-Paul-Volponi.pdf
    • http://loaminoo.linkpc.net/4090095094096097/Black-and-White-by-Tiffany-Madison.pdf
    • http://loaminoo.linkpc.net/3094095097099098/The-Black-And-White-Of-It-by-Ann-Allen-Shockley.pdf
    • http://loaminoo.linkpc.net/9095091096099/In-Black-and-White-Part-One-by-William-Roper.pdf

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