Malicious PDF — malware analysis report

Static analysis result for SHA-256 895058bc517de829…

MALICIOUS

PDF

46.3 KB Authoring application: Scribus
MD5: d3a91a0b1d8299a18e22632df423da77 SHA-1: 88a4764a22c5ca4e64362aed458ce8abec6f976e SHA-256: 895058bc517de8295d1b9b80dd97d476b0868c1b3a55b9a2073fbb08530f8327
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to other PDF files hosted on various domains, suggesting a link farm or content distribution network. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution through these linked resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://nailvenue.com/uploads/1/3/0/8/130814081/2563077.pdf
    • http://anodynebriggs.com/uploads/1/3/0/6/130605355/3079438.pdf
    • http://jacksonempire.net/uploads/1/3/0/4/130490006/2919982.pdf
    • http://bobcatinfo.org/uploads/1/3/0/6/130622095/5539071.pdf
    • http://pagice.com/uploads/1/3/0/7/130775820/3020385.pdf
    • http://jesuspeoples.org/uploads/1/3/0/5/130539247/1654823.pdf
    • http://www.lukeandjustice.brickyardphoto.com/uploads/1/3/0/3/130379769/3556848.pdf
    • http://cartercarpio.com/uploads/1/3/0/4/130435597/bixin.pdf
    • http://peopleforward.org/uploads/1/3/0/4/130483067/595e89.pdf
    • http://dcepool.org/uploads/1/3/0/3/130323552/dfeca2e398.pdf
    • http://notestotheunderground.com/uploads/1/3/0/2/130270763/bokikoge.pdf
    • http://smallbusinessloanfunding.com/uploads/1/3/0/7/130738913/7558632.pdf
    • http://justchryssbeauty.com/uploads/1/3/0/6/130604034/8365995.pdf
    • http://jamesdesign.studio/uploads/1/3/0/8/130813447/furogibefiw.pdf
    • http://fecresources.net/uploads/1/3/0/4/130436014/2114462.pdf
    • http://dgelectricinc.com/uploads/1/3/0/7/130739500/lekup-tugemizisa-gizanowukojot.pdf
    • http://kkyulekaihu.br3h.com/uploads/1/3/0/5/130540799/130540799.html#negritude+movement+slideshare
    • http://fontawesome.iohttp://fontawesome.io/license/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c91.bin
7d0e4f26927737c593ed7efda103a1107150fe3ac8ddbcafaf6ee6c0af50a0b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C91 1588 bytes
font_01_sfnt_off00005799.bin
953bffd649e7d26b4df25f7f11258af37a75ffbd8c067525430c6c72bdddef0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5799 10264 bytes

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