Malicious PDF — malware analysis report

Static analysis result for SHA-256 fef0ef4ee14f98ba…

MALICIOUS

PDF

42.4 KB Authoring application: GIMP
MD5: e37d5cb66b0b9631b902a1fa1c950e33 SHA-1: 02e5f33fea701e74cd2e9ac769c3f035f23ceffd SHA-256: fef0ef4ee14f98ba449d9606d5a2f6e2cf253bbacd739c4d5ed80e50a24820bc
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent. The primary attack pattern involves redirecting users to a network of potentially compromised or malicious sites.

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://therachelsue.com/uploads/1/3/0/2/130287920/lupozedu_xetewakud_bunumasuko_tiwojonetin.pdf
    • http://dumarsinc.com/uploads/1/3/0/4/130436037/718844.pdf
    • http://bevilacquaguitars.com/uploads/1/3/0/3/130313193/9140f5d39.pdf
    • http://tealmoonstudios.com/uploads/1/3/0/5/130539345/rasurede-gabaluxuz-saxetukupononop.pdf
    • http://mibaccountants.com/uploads/1/3/0/6/130605094/9776637.pdf
    • http://socalsupervision.org/uploads/1/3/0/3/130379299/fevax_vinebijasopumez.pdf
    • http://www.paverparadise.co/uploads/1/3/0/8/130814058/zadubozas_xivixepofixev.pdf
    • http://daciajones.com/uploads/1/3/0/6/130604759/1451692.pdf
    • http://armoniacreative.org/uploads/1/3/0/6/130621020/9738445.pdf
    • http://pixelbrain.net/uploads/1/3/0/6/130621134/fitidesabufisapifasi.pdf
    • http://oddlyspecificshirts.com/uploads/1/3/0/3/130313359/fc54e75663.pdf
    • http://xplanator.com/uploads/1/3/0/5/130551127/9690892.pdf
    • http://petoskeycenter.com/uploads/1/3/0/3/130313122/1072095.pdf
    • http://flatlandtrailrunner.net/uploads/1/3/0/2/130289185/1ae726c7.pdf
    • http://teatiendoapp.com/uploads/1/3/0/6/130620222/5a48a8.pdf
    • http://cardbase.net/uploads/1/3/0/6/130604667/filufevezasa.pdf
    • http://huertorriqueno.com/uploads/1/3/0/6/130604610/suvunekesimi_lemen.pdf
    • http://puertoricandj.com/uploads/1/3/0/2/130291453/c58a0f850dff.pdf
    • http://45northfarm.com/uploads/1/3/0/6/130621576/kujofot_bedanipuxejetox_xobumojura_solikijegajoser.pdf
    • http://longcanhalldiscount.com/uploads/1/3/0/6/130620834/c963197c381.pdf
    • http://alangelfand.com/uploads/1/3/0/2/130270985/43a3ffc4c7b1f0c.pdf
    • http://miraculousmedicalmarijuana.com/uploads/1/3/0/5/130544070/wixodebeparu.pdf
    • http://www.wwwthe9inches.com/uploads/1/3/0/4/130489097/d8434ec.pdf
    • http://baakboutique.com/uploads/1/3/0/4/130483163/867e9b5817dd8.pdf
    • http://7qk3b3.salon225.com/uploads/1/3/0/6/130640048/130640048.html#abiotic+factors+ecology

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042fe.bin
f4716ea86be2e75da051b3ddc50144eae36ddcc972ef6c05b59cccebbb0cbc89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x42FE 7956 bytes

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