Malicious PDF — malware analysis report

Static analysis result for SHA-256 2430f3cbd2759737…

MALICIOUS

PDF

47.9 KB Authoring application: OpenOffice Draw
MD5: 4ace3ec969f27aa5bc16f052f44b3bb3 SHA-1: 001a60a70cf4cd12b0a5d63277da4558bedb1282 SHA-256: 2430f3cbd2759737a3f1f2bdad7cebd12e983209b0ebafa93cc7321ea4965410
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique commonly used for SEO poisoning and phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. The document body, though heavily obfuscated, contains references to 'The darkest minds imdb parents guide', likely a lure to attract user clicks.

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://cherishedvessels.com/uploads/1/3/0/5/130551378/gemepobexuzorap_nolofu_givapuxu.pdf
    • http://sharkdinghy.com/uploads/1/3/0/4/130435524/8675475.pdf
    • http://lilacsjoyandgrace.com/uploads/1/3/0/5/130551558/duvubabuti.pdf
    • http://nicelittleearner.co/uploads/1/3/0/5/130551518/fefesimojiwaf.pdf
    • http://skinnytiffy.com/uploads/1/3/0/6/130639875/sipele_nurigizul.pdf
    • http://trainingcenterchurches.com/uploads/1/3/0/2/130271137/gebekelema_wesaxe.pdf
    • http://xtremeshootingsports.com/uploads/1/3/0/6/130604764/130604764.html#the+darkest+minds+imdb+parents+guide

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001165.bin
68535c95143747087fbcd627b8d5e5c63855d4834e40d4f631cb773b1059c889		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1165 8680 bytes
font_01_sfnt_off0000755c.bin
6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x755C 16068 bytes

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