Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa40667d421d02b8…

MALICIOUS

PDF

36.5 KB Authoring application: Adobe PDF Library 9.0
MD5: 3b3730d4b7fd8332d12bc7657e458e5f SHA-1: ebe1039ea467ccbb6dc9a0769f18f1e854554a0e SHA-256: fa40667d421d02b868d6b07ea0787622a1948c5a77b9963a8c4f5c3d97825e1e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning and phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body, while containing garbled text, includes references to 'APC Smart-UPS X 3000VA' and a URL that appears to be part of a link farm, suggesting a lure to trick users into visiting malicious sites.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://oxfordgermanforum.org/uploads/1/3/0/5/130550881/fa97f12abd84.pdf
    • http://youarethebestyou.com/uploads/1/3/0/6/130604882/zegobipazavugapir.pdf
    • https://dagefaseditakaf.weebly.com/uploads/1/3/0/4/130476143/gepuxerajeba-votozitik.pdf
    • http://vufaditar.meso-wharton199.ru/uploads/2020/01/28/vupojarix.pdf
    • http://moayas.com/uploads/1/3/0/5/130590030/2039378.pdf
    • http://xoru.altstroy-vent.ru/uploads/2020/01/28/davevuran.pdf
    • http://vupo.navigator-znaniy.ru/uploads/2020/01/27/0949bfb9.pdf
    • http://rizis.feerverk-spb.ru/uploads/2020/01/29/1043973.pdf
    • http://ankezimmermann.ca/uploads/1/3/0/4/130475981/130475981.html#apc+smart-+ups+x+3000va+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000119f.bin
32efaf1dcc894d5f33fc4137b3bff73b2034b458209a5d713cdd0bd494a23b8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x119F 8524 bytes

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