Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d5922d875967f5b…

MALICIOUS

PDF

51.3 KB Authoring application: Adobe PDF Library 9.0
MD5: 87f6f19920073fb3e7bec1611aaa668e SHA-1: c5d7b745e3650c50a336c3b19794ccc64d4db813 SHA-256: 2d5922d875967f5bb343c65e9239b29b10a7bd9b368f31ed2f7df7bc3bfac645
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. Static analysis revealed a large number of embedded URLs, suggesting a link farm or redirection mechanism. The primary heuristic 'PDF_SEO_LINK_FARM' indicates the document's purpose is likely to manipulate search engine results or lead users to other malicious content. No scripts were extracted from this sample.

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://moncrieffekallai.org/uploads/1/3/0/3/130312919/8019015.pdf
    • http://safespacecounseling.com/uploads/1/3/0/5/130550910/gimam_vivasifadile_gotivuja_fuborejav.pdf
    • http://arctictreasures.shop/uploads/1/3/0/4/130476340/6963571.pdf
    • http://spayedkoolie.com/uploads/1/3/0/4/130435941/dokozupuf-fuzujezumat-vokaz-tokabotoza.pdf
    • http://delavu.acces-agicoles.com/uploads/2020/01/28/2106597.pdf
    • http://anitaleverarttherapist.com/uploads/1/3/0/6/130603975/govopanunizuso-sidap-zanora.pdf
    • http://cranecrews.com/uploads/1/3/0/5/130543598/vavowevusodofi.pdf
    • http://xuwofeviz.mirpruzhin.com/uploads/2020/01/28/milurituk.pdf
    • http://ncstoragebarns.com/uploads/1/3/0/4/130477839/166430.pdf
    • http://autismbroadband.com/uploads/1/3/0/2/130287727/lubarasukibew_zagasuxo_lilifewevos.pdf
    • http://shannanstanciuforschoolboard.com/uploads/1/3/0/2/130274319/1028537.pdf
    • http://chocolaticity.net/uploads/1/3/0/6/130640236/130640236.html#openfoam+user+guide+6

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001516.bin
4515e577e5f151e651bc14a80210e9018bb1cd64042d7bcefe2b119618d06e99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1516 8888 bytes
font_01_sfnt_off00008e5f.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5F 2652 bytes

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