Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c4c99b4670418ee…

MALICIOUS

PDF

34.1 KB Created: 2020-05-28 14:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9844bd67e9d5510c42b3c990177c2f16 SHA-1: 4cb116f89eaa29aeedf26656f4901d5ba242c375 SHA-256: 4c4c99b4670418ee7b25a30524666d26226dcaff348ea095bebcc1178e46b36f
92 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, a common technique for SEO poisoning or redirecting users to malicious sites. The ML classifier strongly indicated maliciousness. The document body itself is largely unreadable due to encoding issues, but the presence of numerous URLs suggests a drive-by download or phishing attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://autodiscover.themodestshoptx.com/uploads/1/3/0/5/130588337/130588337.html#historia+del+chorizo+antioque%25C3%25B1o
    • http://lunabloomdoula.com/uploads/1/3/1/4/131408838/rijuluto-zokivojij-mipojo-bigunuwelif.pdf
    • http://wellnessally.com/uploads/1/3/0/7/130739839/684364.pdf
    • http://modernabuild.com/uploads/1/3/0/6/130639117/bujitoxogajijar-kapak-wiwavotepog.pdf
    • http://loveloaves.net/uploads/1/3/1/0/131070382/febakugezijope.pdf
    • http://mail.bobpirophotography.com/uploads/1/3/1/4/131437576/bonegelanab-wekoruxep.pdf
    • http://easydietsforyou.com/uploads/1/3/1/8/131871963/nutegegawe.pdf
    • http://jbargear.com/uploads/1/3/1/4/131453046/vapenawufez-komisojan-wanab-jutoxokawi.pdf
    • http://experthousecleaningmelbournefl.com/uploads/1/3/1/3/131384503/73142.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005688.bin
60843daf821a4ab4a25202cd846378041936089541e87d4ba8e5673fc77aa74c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5688 11408 bytes

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