Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bbacfcd978ebb85…

MALICIOUS

PDF

36.8 KB Authoring application: SWFTools
MD5: 7a4321b8b7f72c0c8435df94eceaafeb SHA-1: 13bbc87f8ec11efdd6659c52a925f6bff9b43bab SHA-256: 1bbacfcd978ebb8504b025aa7ac6badeb4299615a4a9cc110aa9243ba06e9d73
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted, but the primary attack pattern involves directing users to external resources.

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://suzannefife.com/uploads/1/3/0/5/130589056/c56e784d23.pdf
    • http://nefa.newtourist.ru/uploads/2020/01/27/4124669.pdf
    • http://moxudasosa.bprofi.su/uploads/2020/01/29/woxodejuxusanolero.pdf
    • http://tijusur.chama.site/uploads/2020/01/28/b5d51e75a.pdf
    • http://poxebemi.kc-x.ru/uploads/2020/01/28/a0c11.pdf
    • http://logisticsbeacon.com/uploads/1/3/0/4/130490668/236046.pdf
    • http://titibole.ptk-soyuz.com/uploads/2020/01/29/9174424.pdf
    • http://stephaniepereira.com/uploads/1/3/0/3/130313021/636f2f2.pdf
    • http://mydriwashonline.ca/uploads/1/3/0/5/130588482/rofovozeda_dokoluralupon_zuledakogiw_sizut.pdf
    • https://bidixufob.weebly.com/uploads/1/3/0/6/130604533/tanorajew-xefilok-gidemasaxebis.pdf
    • http://oxnard-photography.com/uploads/1/3/0/5/130590180/130590180.html#rehabilitation+brachial+plexus+injury

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001421.bin
0a704f03e6707834ec7acae60dec584a52da2bc8be6819da45ab1d99143956ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1421 8464 bytes

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