Malicious PDF — malware analysis report

Static analysis result for SHA-256 882a64db0358fb3e…

MALICIOUS

PDF

35.1 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 9858443f4c7d7a8f77b8866fb451b0ed SHA-1: 3a1a6b79fee5a6c1aa4ae9a3370dcbcf8a77db76 SHA-256: 882a64db0358fb3e429ed02130d4cb5ad6a1c87391b33a7f85285b4dadfc8bfc
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, and a machine learning classifier also flagged it as malicious. The embedded URLs are the primary indicators of compromise, suggesting a phishing or content distribution campaign.

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://matiwesi.urologya.expert/uploads/2020/01/29/tesomanifawi-melomiron-jelejez.pdf In PDF document text
    • http://viewmic.com/uploads/1/3/0/3/130313507/df65cca.pdfIn PDF document text
    • http://skycruizair.com/uploads/1/3/0/4/130435561/lepasoxisafam.pdfIn PDF document text
    • http://lightisadrug.com/uploads/1/3/0/6/130639861/73b085e7406.pdfIn PDF document text
    • http://missionarytoargentina.com/uploads/1/3/0/6/130640059/3336874.pdfIn PDF document text
    • http://flynnarmstrong.com/uploads/1/3/0/6/130620684/kenesekavamub.pdfIn PDF document text
    • http://thepinstation.com/uploads/1/3/0/2/130287426/kesijamufavu_sotusubuf.pdfIn PDF document text
    • http://ahacia.com/uploads/1/3/0/6/130639622/9410302.pdfIn PDF document text
    • http://michaelshusko.com/uploads/1/3/0/5/130589135/130589135.html#oxy-acetylene+welding+aluminumIn PDF document text

Related samples 2

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_off0000118a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118A 8380 bytes
SHA-256: 720a31daef4f460d8beb8c99a9c235c27c1c25262ffcfcf9a4242269012dd394

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