Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad5d9120fdec3d39…

MALICIOUS

PDF

11.9 KB Created: 2015-07-15 14:43:34 +04:00 Authoring application: DOMPDF
MD5: 88f1dbb9382650e7756ef60c36987f07 SHA-1: 2eb00c803f520de68636d5e94d258cf6054d1f19 SHA-256: ad5d9120fdec3d398ef175b941fb4bca6d953e87f6e7b5d93611c45a5c4213d7
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of external links, many pointing to photo-file.ru. This suggests a link farm or SEO manipulation tactic, potentially to distribute further malicious content or to improve the ranking of malicious sites. The document body contains garbled text and embedded URLs, reinforcing the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8959

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://photo-file.ru/index.php?article=1517.1&wehsa=1&pdf=1517
    • http://shoppinga.it/index.php?article=1782.1&nznbl=1&pdf=1782
    • http://archerwealth.com.au/index.php?article=564.1&ldzws=1&pdf=564
    • http://photo-file.ru/index.php?article=454.1&wehsa=1&pdf=454
    • http://marche-espoir.org/index.php?article=1535.6&xonvf=6&pdf=1535
    • http://photo-file.ru/index.php?article=2394.1&wehsa=1&pdf=2394
    • http://www.mantrabeautybar.ca/index.php?article=1013.1&rukbv=1&pdf=1013
    • http://www.amenagementboislyon.com/index.php?article=2331.1&jnfas=1&pdf=2331
    • http://ceotisnord.com/index.php?article=972.2&vcbzf=2&pdf=972
    • http://photo-file.ru/index.php?article=1164.1&wehsa=1&pdf=1164
    • http://photo-file.ru/index.php?article=866.1&wehsa=1&pdf=866
    • http://photo-file.ru/index.php?article=2449.1&wehsa=1&pdf=2449
    • http://marjangecevic.com/index.php?article=1289.1&vgslo=1&pdf=1289
    • http://photo-file.ru/index.php?article=1697.1&wehsa=1&pdf=1697
    • http://camus-sarl.fr/index.php?article=1171.2&fnxpz=2&pdf=1171
    • http://photo-file.ru/index.php?article=1704.1&wehsa=1&pdf=1704
    • http://trans-cultures.eu/index.php?article=671.1&asedt=1&pdf=671

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