Malicious PDF — malware analysis report

Static analysis result for SHA-256 5652463bb7f4036b…

MALICIOUS

PDF

36.3 KB Authoring application: OpenOffice.org
MD5: dcde20653d6496332edeb4a75af378ba SHA-1: 20db974fce3b078f30b407c705627146f922f830 SHA-256: 5652463bb7f4036b9442ee3faf8bb986cf78cef82f394c46b78d0c5cdb8dc240
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 hosted on various domains, indicating a link farm designed to distribute malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or malicious download intent. The document body, though heavily corrupted, contains phrases that might have been part of a lure, such as 'Click here to download'.

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://thunderbirdsprings.com/uploads/1/3/0/8/130814559/kagowe-revokuwulemin-mexap-gasojajuvovawun.pdf
    • http://chugachpt.com/uploads/1/3/0/5/130590108/mokolujazure.pdf
    • http://resolvenetwork.net/uploads/1/3/0/6/130620510/vikukunifixijok-babijeludeb-raxuwowani-gokopefoxuw.pdf
    • http://barbaramars.com/uploads/1/3/0/3/130379408/87d90aacc1.pdf
    • http://zdiagnostics.com/uploads/1/3/0/7/130740538/gaxokokav.pdf
    • http://accomozcontact.com/uploads/1/3/0/6/130605374/nuzizorezapipaka.pdf
    • http://kinghitproductions.com/uploads/1/3/0/6/130605019/9086360.pdf
    • http://saltink.com/uploads/1/3/0/5/130551065/tuwifu-mulalorot-devibiluze.pdf
    • http://annielande.org/uploads/1/3/0/6/130640164/laguduvo_jezupom_jabuvofekawilu_ritiwo.pdf
    • http://organeering.com/uploads/1/3/0/6/130604720/lezugubusaxuvefi.pdf
    • http://hostmaster.southeyeclinic.co.uk/uploads/1/3/0/8/130814189/8418481.pdf
    • http://stephanie-harper.com/uploads/1/3/0/2/130270836/wupidizab.pdf
    • http://createcashflowformula.com/uploads/1/3/0/6/130604749/4641843.pdf
    • http://hostmaster.slamrecoverycollege.co.uk/uploads/1/3/0/6/130604499/pisigalolado-madotimololeg-pulilamuwasudan.pdf
    • http://chambared.com/uploads/1/3/0/2/130273766/tilonimuj.pdf
    • http://www.thechairseatweaver.com/uploads/1/3/0/6/130620874/683319bf5f.pdf
    • http://jbtravels.net/uploads/1/3/0/8/130814575/doriwi.pdf
    • http://724detailing.com/uploads/1/3/0/8/130813372/kubena.pdf
    • http://schoogl.com/uploads/1/3/0/6/130604765/8352645.pdf
    • http://newchoicemusic.com/uploads/1/3/0/8/130814020/tetuzoruva.pdf
    • http://stuffpeoplesentme.com/uploads/1/3/0/7/130740200/fakevepazota.pdf
    • http://cpanel.jacquelineclewis.com/uploads/1/3/0/6/130603763/130603763.html#daikin+chiller+training+2018

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002aca.bin
a17c9a91b009faee99c6d8838c9efccb26833c4c953693ca62a3d2ede4cf8961		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACA 8536 bytes

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