Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bfa02d1c27976c…

MALICIOUS

PDF

39.7 KB Authoring application: ImageMagick First seen: 2020-09-07
MD5: 7a680fceb5c86e8fc456e4bb49fde05e SHA-1: 8d918d837385418731287ef1dd849d02c418e035 SHA-256: 22bfa02d1c27976c4e6b529c8408ce65e4587853af9821932a2ca78a9eb14d32
160 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 redirection scheme. The heuristic 'PDF_SEO_LINK_FARM' and the presence of 31 external PDF links strongly suggest this is an attempt to distribute malicious content or engage in SEO spam. The ML classifier and ClamAV detection further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 https://fiwokotiribow.weebly.com/uploads/1/3/0/6/130604522/tilifidadeju-zejavaful-vovigaxebasabuw.pdf In PDF document text
    • https://mukepazumawa.weebly.com/uploads/1/3/0/2/130288379/basimoter.pdfIn PDF document text
    • https://livuposamopi.weebly.com/uploads/1/3/0/6/130604048/gogiranikowi.pdfIn PDF document text
    • http://kparksandrec.com/uploads/1/3/0/5/130588907/vajanedog_tawagexur.pdfIn PDF document text
    • https://xidobawap.weebly.com/uploads/1/3/0/2/130272880/9145574.pdfIn PDF document text
    • https://rulifogemunoxut.weebly.com/uploads/1/3/0/6/130604907/64b598da2b.pdfIn PDF document text
    • http://vew.tapuzik.com/uploads/2020/01/28/4487470.pdfIn PDF document text
    • http://fcaky.com/uploads/1/3/0/6/130621698/fazatarodi-pujizi-wugofewu.pdfIn PDF document text
    • http://jow.najiyagalimova.com/uploads/2020/01/28/wanusejesen.pdfIn PDF document text
    • http://balkony-msk.ru/uploads/2020/01/27/loxunamemid.pdfIn PDF document text
    • http://murasamt.tech/uploads/2020/01/28/6265012.pdfIn PDF document text
    • http://pokefona.med555.ru/uploads/2020/01/29/xepuja-kuzozabirukok-kekejekikojujup-gifojavow.pdfIn PDF document text
    • http://renegaderecycling.com/uploads/1/3/0/5/130544090/texaveg.pdfIn PDF document text
    • https://vapiwesow.weebly.com/uploads/1/3/0/5/130551904/medokibepakelusoxot.pdfIn PDF document text
    • http://dmacedoengenharia.com/uploads/1/3/0/6/130604307/1085398.pdfIn PDF document text
    • http://fat.defki.icu/uploads/2020/01/29/9728477.pdfIn PDF document text
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130639975/130639975.html#syphilis+guidelines+2019In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000145d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145D 8044 bytes
SHA-256: 420999ab3f27c36cd5888bf29e09b23e8705d9715919714a0c9d3eb2992edef0