Malicious PDF — malware analysis report

Static analysis result for SHA-256 491f27165e8f133c…

MALICIOUS

PDF

44.2 KB Authoring application: SWFTools First seen: 2020-09-15
MD5: b67951ccde9296b69f93749c6c24fa14 SHA-1: 1d9a986c6d3bb27a689afab1d1f426a36bc8d73d SHA-256: 491f27165e8f133cc8410171b1c96c29fda4cd3896d7f32d2b2dd77ad3f2a529
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule, indicating a large number of external links. The ML classifier also assigned a high probability of maliciousness. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this. The document body contains references to 'Ariesms training guide' and embeds numerous URLs, suggesting a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://saze.ideastoyou.ru/uploads/2020/01/27/volinidesozanoxufud.pdf In PDF document text
    • https://sipovavanapakin.weebly.com/uploads/1/3/0/5/130543353/1545193.pdfIn PDF document text
    • https://bunuvifub.weebly.com/uploads/1/3/0/5/130588614/rosodojilofo_xumalazabe.pdfIn PDF document text
    • http://dusolapoza.onlyhome.club/uploads/2020/01/28/e99a9aadfdc650.pdfIn PDF document text
    • http://capitalcityfarmersmarket.org/uploads/1/3/0/6/130604878/0d590.pdfIn PDF document text
    • http://runepubono.svetofot.ru/uploads/2020/01/27/1921937.pdfIn PDF document text
    • http://sobokeda.private-girls.club/uploads/2020/01/28/8493522.pdfIn PDF document text
    • https://wupivodu.weebly.com/uploads/1/3/0/3/130323555/mekubitosupef.pdfIn PDF document text
    • http://susafis.hlfxdata.online/uploads/2020/01/28/tazosewarofemamu.pdfIn PDF document text
    • http://mycommentsandthoughts.com/uploads/1/3/0/3/130313111/130313111.html#ariesms+training+guide+1-+250In PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1276 8928 bytes
SHA-256: c942d6c00c0d68750aeba22e97ad32a57d6254b01f3b02e522800ebc560092eb

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