Malicious PDF — malware analysis report

Static analysis result for SHA-256 6045741808ee5faa…

MALICIOUS

PDF

46.6 KB Authoring application: OpenOffice.org
MD5: b0834ad25d7213bb64764b18f7a86e14 SHA-1: 76effe7e8e667a05d7ee56c5024881ac8e742263 SHA-256: 6045741808ee5faae871f0e65869362e84cd6ba2a0cb901e773fb99016c84eec
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, indicating a link farm or a distribution mechanism for further content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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://czechgoods.ru/uploads/2020/01/27/wiroluwufuxoj.pdf
    • http://bhpmedicalconsultants.com/uploads/1/3/0/3/130379676/8255250.pdf
    • http://bordergrillorlando.weebly.com/uploads/1/3/0/5/130551429/gofaworudasiw-kavasax-rigefok.pdf
    • http://nozut.japan-cosmo.ru/uploads/2020/01/29/fukumenax-xepuxa-tewutavume-betivadinip.pdf
    • http://pcbchain.co.uk/uploads/1/3/0/5/130590036/2797887.pdf
    • http://revivetheroxy.org/uploads/1/3/0/2/130287504/5a8e3451b36d8f.pdf
    • https://kofodisunojer.weebly.com/uploads/1/3/0/5/130544091/bemeruzalogudina.pdf
    • http://bethelips.com/uploads/1/3/0/5/130541623/pebefujo.pdf
    • http://soulintegration.com.au/uploads/1/3/0/6/130621757/dumoximekes.pdf
    • http://automaticpocketdoor.com/uploads/1/3/0/5/130551464/xajibogodifa.pdf
    • http://eventrabbelac.pro/uploads/2020/01/29/7049766.pdf
    • http://landscapeequipmentrentals.com/uploads/1/3/0/6/130603741/tuwozotukato.pdf
    • http://aeropac.vip/uploads/1/3/0/2/130289461/femubelebivimokapu.pdf
    • http://beaumonttennisacademy.com/uploads/1/3/0/5/130543878/130543878.html#guideline+hypertension+heart+disease

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001421.bin
afbde6cfbfcc3dfd968774ba101f98779297108431f3fff52e4ea0f92661b461		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1421 9520 bytes

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