Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0dc0dd561fc2164…

MALICIOUS

PDF

37.4 KB Authoring application: Poppler-utils
MD5: a8abc0b75afa0aa4f14ff80012c8145c SHA-1: 6a76c17c1b163cefc3b2f3c95a78fa08b6968568 SHA-256: d0dc0dd561fc2164ca8bb017fa4273d6d7e35115d9f929e898b049cb553fbdd6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1204.002 Malicious File:Malicious Link

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of embedded external links, a technique often used for SEO poisoning or phishing campaigns. The document body references 'A Modest Proposal' but appears to be largely obfuscated or corrupted text, further suggesting a malicious intent to disguise the true nature of the links.

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.
  • 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://suni.minzdrvonline.ru/uploads/2020/01/28/74b0d23.pdf
    • http://betterwiththebible.com/uploads/1/3/0/4/130483817/5d70ba8.pdf
    • http://asoftsoftram314.weebly.com/uploads/1/3/0/3/130323630/ronome.pdf
    • http://nadashiva.com/uploads/1/3/0/3/130323620/2459255.pdf
    • https://vuwixagonuri.weebly.com/uploads/1/3/0/3/130313186/9ad88bb.pdf
    • http://nuzoneti.sber-moscow.info/uploads/2020/01/28/9df30ef640b.pdf
    • https://tisetiluwogoti.weebly.com/uploads/1/3/0/4/130488699/fbd37.pdf
    • http://thepointofgrace.org/uploads/1/3/0/3/130313634/porula-vegano.pdf
    • http://satromforhouse.com/uploads/1/3/0/4/130490476/3b500a80.pdf
    • http://trentriverdesigns.com/uploads/1/3/0/4/130476185/130476185.html#modest+proposal+study+guide+questions

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011da.bin
8f4d7b1b5cc5b949c91d0824068a95a7f5ae01ed5b172cb0703e53986d4f7f1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DA 8516 bytes

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