Malicious PDF — malware analysis report

Static analysis result for SHA-256 2225ccb9b44e08c5…

MALICIOUS

PDF

40.1 KB Authoring application: pstoedit
MD5: 862ebb3dc34e410b0e0308e9d8c77940 SHA-1: 40c712f10abaeb874b1bb6cf307d60c35d02de7e SHA-256: 2225ccb9b44e08c592c07d1adabb983749a41b9a20d67135f307ccfb93c16322
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further suggests malicious intent related to traffic redirection or phishing. The embedded URLs likely serve as a link farm to distribute traffic or host further malicious content.

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://childrensliteratureandreading.org/uploads/1/3/0/7/130740477/3692080.pdf
    • http://singaporetaobaospree.com/uploads/1/3/0/6/130639221/metotapuxod-fapomo-tebinolugebul.pdf
    • http://ducksnestdecoys.com/uploads/1/3/0/6/130604640/20e38.pdf
    • http://siliconvalleyaircharter.com/uploads/1/3/0/6/130640031/gitijawatu_nalafumibeda_vegugojamavobu.pdf
    • http://mrblacksmusic.com/uploads/1/3/0/2/130271017/vajukivukawuxek_fajadexuj_wugetula.pdf
    • http://dukujisaw.my-sklad.ru/uploads/2020/01/28/4306299.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130603818/130603818.html#sample+itinerary+template+for+family+reunion

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001305.bin
6ae1d92ad44563f166321aad3d67bbc3e951dee1a9756fd1315145010cc7a1b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1305 7632 bytes

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