Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4e77c3777dae4fe…

MALICIOUS

PDF

38.2 KB Authoring application: LibreOffice
MD5: 66363083f148eb77b2271e8c508a0b61 SHA-1: 3cfa148a3d3f5bbc129f03c6eb2bb628204b93a0 SHA-256: b4e77c3777dae4fe5d4c8939772093abf287910247d9c80c3dba6388c84279b6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection.

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://cancunstanduppaddle.com/uploads/1/3/0/5/130547450/lupajazixibuk-sexapom-vibosowarutiwuj-lubinodowo.pdf
    • http://surveyoz.com/uploads/1/3/0/5/130550997/2976c22.pdf
    • http://metalsbullbear.com/uploads/1/3/0/4/130435884/3449e.pdf
    • http://experiencekailua.com/uploads/1/3/0/8/130873855/zatitoziwijilasewef.pdf
    • http://agingwell360.com/uploads/1/3/0/4/130489423/nuxugomup.pdf
    • http://kaltsden.store/uploads/1/3/0/5/130550775/f82d1589a1.pdf
    • http://bolaparada.site/uploads/1/3/0/5/130546434/lomufeniz.pdf
    • http://graysay.net/uploads/1/3/0/6/130604101/gufidapadod-libovejat.pdf
    • http://nuobeijinghotel-chinese.devsite-1.com/uploads/1/3/0/4/130483402/bofosinazitetug.pdf
    • http://anamplifiedlife.net/uploads/1/3/0/4/130476053/c4314307860.pdf
    • http://myconnectutility.com/uploads/1/3/0/5/130550930/10e26de4.pdf
    • http://getmedeal.com/uploads/1/3/0/3/130313468/d9d3843882db65.pdf
    • http://judgeammendola.com/uploads/1/3/0/3/130313434/bosumoz.pdf
    • http://advancedbiocomputing.net/uploads/1/3/0/2/130271145/1979710.pdf
    • http://iweargreatness.com/uploads/1/3/0/6/130640015/130640015.html#ielts+reading+tips+for+fill+in+the+blanks
    • http://nuobeijinghotel-chinese.devsite-1.com/u

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b7f.bin
3c8dede5289667db6003237a1c380ee623abdf2b6aceb88f1d2df58eac6bfe82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B7F 8060 bytes

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