Malicious PDF — malware analysis report

Static analysis result for SHA-256 0baeb398cbcc727b…

MALICIOUS

PDF

37.9 KB Authoring application: Mobipocket Creator
MD5: bbfa0afae2bb5a238802c6d5a662ef41 SHA-1: 27887f77d5da109630e73d1b4b66c6be0e5383ba SHA-256: 0baeb398cbcc727b25cb8787731c948a9888373f9da180e5ff91278190150829
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as phishing malware. No scripts were extracted, but the sheer volume of linked PDFs suggests a coordinated effort to redirect users.

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://bestconference.net/uploads/1/3/0/5/130590564/7fece587d.pdf
    • http://care-association.info/uploads/1/3/0/4/130488338/0f3c69e054bab.pdf
    • http://avataraangsex.porncolection.com/uploads/1/3/0/6/130604326/7cfae1549a.pdf
    • http://binarybitteam.com/uploads/1/3/0/6/130639743/b4e031caf175d2.pdf
    • http://thisworldofechoes.net/uploads/1/3/0/4/130478760/29b2f6c.pdf
    • http://www.birgitmacphotography.com/uploads/1/3/0/4/130435757/lufipulu.pdf
    • http://trustedinsuranceprofessionals.com/uploads/1/3/0/8/130873824/2023583.pdf
    • http://defiesmeasurement.com/uploads/1/3/0/6/130621871/kalevevabogigazu.pdf
    • http://russianair.com/uploads/1/3/0/2/130289763/kokefukonoxale.pdf
    • http://aucunordiperdu.com/uploads/1/3/0/6/130622075/parib_xurenu.pdf
    • http://estreetadv.com/uploads/1/3/0/7/130738635/2cc19f6a38c.pdf
    • http://share-genki.com/uploads/1/3/0/4/130478433/d483a1.pdf
    • http://www.abbyandcompany.com/uploads/1/3/0/2/130291475/moxefarudokeda.pdf
    • http://www.chemistryconversations.com/uploads/1/3/0/8/130813577/1510220.pdf
    • http://corfiotholidays.com/uploads/1/3/0/4/130436258/8c5b6b42b6cde5.pdf
    • http://whatdoyousee.art/uploads/1/3/0/6/130604630/ponute-pixuxutatav-vodipapaje.pdf
    • http://aftersales.nopeus.eu/uploads/1/3/0/6/130621033/volipavimule-sifigajuravek-gadev-bujukamu.pdf
    • http://phaze1online.com/uploads/1/3/0/6/130620798/d5cec8a043.pdf
    • http://cozartsentertainment.com/uploads/1/3/0/2/130289305/2038467.pdf
    • http://jenn4judge.com/uploads/1/3/0/4/130483540/3707966.pdf
    • http://magdalenaministries.com/uploads/1/3/0/8/130874485/54bee915f85.pdf
    • http://74-123-72-68.mgwnet.com/uploads/1/3/0/6/130640040/130640040.html#halloween+math+worksheets+free+printable

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000343c.bin
2dd2d0ea5301187286354c26205dc7c7969957fa2df43e0881d4abf34028ecf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x343C 7684 bytes

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