Malicious PDF — malware analysis report

Static analysis result for SHA-256 346dfcf8f75a29c0…

MALICIOUS

PDF

31.7 KB Created: 2020-04-16 02:12:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9949028053c5ff02c6628c88e0f96e9f SHA-1: 0aa03962431bae80775ffb96b9e492445ed73b89 SHA-256: 346dfcf8f75a29c061d7d00eb92d13455756cabe391d05fe858ca64b4c886aaf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document is designed to appear as a 'Comptia a study guide pdf 2018' to trick users into downloading further malicious content. It contains a large number of external links, forming a link farm hosted on various domains, all pointing to PDF files. This indicates a distribution mechanism for malware or phishing content, likely using SEO poisoning tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://vacaspa.com/uploads/1/3/0/3/130379072/130379072.html#comptia+a+study+guide+pdf+2018
    • http://rainbowdollhouses.store/uploads/1/3/0/2/130271121/c9aa56387efdb40.pdf
    • http://younglifeplano.com/uploads/1/3/0/8/130874429/jamosudizuvulak.pdf
    • http://trtees.com/uploads/1/3/0/7/130739850/47fedea.pdf
    • http://fucd.foundation/uploads/1/3/0/4/130489361/8398735.pdf
    • http://suitlandhsmasterplan.com/uploads/1/3/0/7/130739824/4967325.pdf
    • http://kobyg.com/uploads/1/3/0/6/130620207/mudidovevikam.pdf
    • http://beaudoinpercussion.com/uploads/1/3/1/1/131164377/lijewekotinanixumuzu.pdf
    • http://sacredheartpri.com/uploads/1/3/0/7/130775109/ketexuwob.pdf
    • http://michellekouba.com/uploads/1/3/0/5/130589094/9625999.pdf
    • http://bordeauxplantation.com/uploads/1/3/0/2/130289580/cb01c7148cc4fb.pdf
    • http://id-67.com/uploads/1/3/1/3/131381497/zuvuxekabatenog.pdf
    • http://copperstatehypnotherapy.com/uploads/1/3/0/3/130323186/dutimid.pdf
    • http://bzsourcing.com/uploads/1/3/1/4/131437871/8964436.pdf
    • http://shanaspaw.com/uploads/1/3/0/3/130379458/kusutiranogam.pdf
    • http://nellytotssoftplay.com/uploads/1/3/0/9/130969842/xipewefuruvu_zikepififu.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_off0000572d.bin
6de0a3a6e04cca8a19bb8efc507adc8a32b3e802bcb826ec7c5c416b6728dcb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x572D 6900 bytes

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