Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d7365a2290ac728…

MALICIOUS

PDF

40.9 KB Authoring application: ImageMagick
MD5: f2006cc2e6a2cf72c502cf9715a83d58 SHA-1: c78c3351207383aa23f33ee83b9ba4d8d78445bc SHA-256: 7d7365a2290ac7285fad5a98b973db685d53a32a602d399b025b6555faafc5ce
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. ClamAV and ML heuristics confirm its malicious nature, specifically flagging it as a phishing attempt. The embedded URLs likely serve as a distribution mechanism for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://taranakitimebank.nz/uploads/1/3/0/5/130590457/xebuwevowitekox.pdf
    • http://bigcreekkennels.com/uploads/1/3/0/4/130490193/rumixotitetakegerov.pdf
    • http://seydarebai.com/uploads/1/3/0/3/130379315/rugamenugibigap-famezizilobo.pdf
    • http://sassyfrassy.com/uploads/1/3/0/3/130313343/fudinomarunur.pdf
    • http://northernraiderstrackteam.com/uploads/1/3/0/4/130488734/pabekej.pdf
    • https://pugowugo.weebly.com/uploads/1/3/0/2/130273894/vipixof_rifikakuresu.pdf
    • http://achuddleston.weebly.com/uploads/1/3/0/5/130546000/zopumanuwoxe.pdf
    • http://shopwasilclothing.com/uploads/1/3/0/3/130313748/maxipujuraxer.pdf
    • http://portagejiu-jitsu.net/uploads/1/3/0/5/130590481/e6ce528aa7da57.pdf
    • http://newsolutionsit.com/uploads/1/3/0/2/130273589/xavekanu.pdf
    • http://emilyburdettphotography.com/uploads/1/3/0/6/130604935/jowodavusazukokopi.pdf
    • http://thehnossaproject.com/uploads/1/3/0/5/130540010/130540010.html#diccionario+biblico+catolico+para+descargar+gratis+android
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001347.bin
fc1d3d660517418dea7dd2676f1fee895a3ed80e6c7dcee953e5603ad88ca732		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1347 8800 bytes
font_01_sfnt_off000057f6.bin
1d1fa5121415f8f5353993473374918b9d2a38f433752094af4cce5d3be72c8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57F6 16312 bytes

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