Malicious PDF — malware analysis report

Static analysis result for SHA-256 9722982802746d82…

MALICIOUS

PDF

35.0 KB Authoring application: LibreOffice
MD5: 408d39b4aa394096138c4bed432c0b4c SHA-1: 0a7ca0adb63006f8d052b3690bd5e999bcb1fe79 SHA-256: 9722982802746d82531a6a7d0ec689bb4ff1be1d81d7d651f6d03752c2eadc6d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. The document body, though heavily obfuscated, contains several URLs that are part of this link farm, suggesting the primary purpose is to redirect users to potentially harmful content.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://3dmarinerswalk.com/uploads/1/3/0/5/130590338/833785.pdf
    • http://futuresobrite.com/uploads/1/3/0/6/130621215/6799942.pdf
    • http://clinicaespacosaudebeleza.net/uploads/1/3/0/2/130288811/3445299.pdf
    • http://emilyranney.com/uploads/1/3/0/3/130379548/birafetitajasesok.pdf
    • http://zinenasek.misstourist.org/uploads/2020/01/29/mosafopagojolal_zifezuw.pdf
    • http://kevinpendergast.com/uploads/1/3/0/4/130436095/vaninofosezuwaj_sotomilaf_befijudizamibe.pdf
    • http://hollandghanaplatform.net/uploads/1/3/0/4/130483320/de6aa734d.pdf
    • http://preschoolmusicclasses.net/uploads/1/3/0/5/130545097/da8fd0b7.pdf
    • https://renanirorowedaf.weebly.com/uploads/1/3/0/2/130272481/pogafiris.pdf
    • http://interestministries.com/uploads/1/3/0/3/130312980/zezowefideku.pdf
    • http://kidsanimalsplants.com/uploads/1/3/0/5/130538950/zetiletew_molilapetakero_jukami_wewuduzizelofar.pdf
    • http://romanticism55.com/uploads/1/3/0/4/130479312/donetavetavogej-sediku-ligel-vugifone.pdf
    • http://everywherecreative.com/uploads/1/3/0/5/130550985/wivixoxanovisimuse.pdf
    • https://zigelawuwexak.weebly.com/uploads/1/3/0/4/130436234/1779583.pdf
    • http://vipiski-besplatno13.icu/uploads/2020/01/28/2989ab749.pdf
    • http://cerebromatics.com/uploads/1/3/0/5/130539165/tibetopozulitek_fegekal_tisawot.pdf
    • http://sharedtravel.voyagerwebsites.com/uploads/1/3/0/6/130621698/130621698.html#framework+4.+5+full

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014b7.bin
08c75fb71434d5743840c211d5f92e53aadb750f24315511db4f23f102f0e15d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14B7 7544 bytes

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