Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb8843a238b99217…

MALICIOUS

PDF

69.7 KB Authoring application: LibreOffice Draw
MD5: ff35e9fd5f1af682453d3eb1a05ee9f0 SHA-1: 9a318377162c3dc82c54675e88f8a950bdd1e952 SHA-256: fb8843a238b9921764e767e975ed617e44e2221a7be0c24dce74e6b26df07843
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or redirection mechanism. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. The document body content is largely unreadable due to encoding issues, but the presence of numerous external links is the primary indicator of malicious activity.

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://patterninginstinct.com/uploads/1/3/0/6/130605501/9972ffe275a69a.pdf
    • http://lauralepre.com/uploads/1/3/0/6/130604657/548f3e62308.pdf
    • http://togetheras3pointone.com/uploads/1/3/0/5/130539768/88c59c1ceaf9.pdf
    • http://leonsolutionsllc.com/uploads/1/3/0/6/130620644/b48b1046da4f.pdf
    • http://www.myreflectionjournel.com/uploads/1/3/0/7/130776821/vomonoginu.pdf
    • http://olsonphotographystudio.com/uploads/1/3/0/6/130621072/xoronixinovuv.pdf
    • http://www.wyattpta.org/uploads/1/3/0/2/130288626/wadazo_sopedim_kezelawuvun_kojigamika.pdf
    • http://pizzabellaak.net/uploads/1/3/0/6/130605228/lumosaw-givaposorivib-xewug-momavobolezikur.pdf
    • http://fitvets.net/uploads/1/3/0/6/130620297/69997.pdf
    • http://greyrisk.net/uploads/1/3/0/4/130483232/vevosatojalopuzeneru.pdf
    • http://patternpod.com/uploads/1/3/0/3/130313038/dubuxeg_dozesufu_bonakozod.pdf
    • http://denverscore.com/uploads/1/3/0/3/130380084/pawufudujajo.pdf
    • http://millenniuminternational.biz/uploads/1/3/0/8/130814132/2805c8437e8525.pdf
    • http://cpanel.sascelledesigns.com/uploads/1/3/0/7/130776307/330f6.pdf
    • http://mobilemealsoftucson.org/uploads/1/3/0/5/130538986/a59646077.pdf
    • http://ironcoreathletes.com/uploads/1/3/0/8/130813818/galuxavamevadula.pdf
    • http://southhamschildrenscentres.org.uk/uploads/1/3/0/7/130739212/jiworimeluxep-zamepesu-tuneras.pdf
    • http://optoutlaw.com/uploads/1/3/0/2/130273578/31beee5.pdf
    • http://saraanjiwani.com/uploads/1/3/0/7/130739956/miluxonu_gerev_tulabogesazowa.pdf
    • http://www.woolcrumbs.teatrodobiombo.com/uploads/1/3/0/6/130640175/boxupeduje.pdf
    • http://abbaytelecom.ca/uploads/1/3/0/5/130550664/90541717565f.pdf
    • http://www.jenmansupport.com.au/uploads/1/3/0/2/130287503/3259270.pdf
    • http://www.itistheend.org/uploads/1/3/0/4/130477663/mojosexaxudimifidax.pdf
    • http://trevordewitt.me/uploads/1/3/0/7/130776521/1043327.pdf
    • http://www.justmusicbrand.com/uploads/1/3/0/5/130542935/8927813.pdf
    • http://hyperion-ai.com/uploads/1/3/0/5/130550696/130550696.html#who+plays+poirot+in+abc+murders+2018
    • http://mobilemealsof

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001761.bin
41ea330dd896a88c3c0650a2741497c6dec120b880d5648f81a64a38ad83e6ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1761 9484 bytes
font_01_sfnt_off0000c319.bin
6f2d7c0716513e955eacad4a5b92b16b88cf54c2a6c79a127b0f6caa719215b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC319 5136 bytes
font_02_sfnt_off0000d302.bin
63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD302 2600 bytes

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