Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ec8775d46b58006…

MALICIOUS

PDF

43.1 KB Authoring application: pdf-parser First seen: 2020-09-24
MD5: be797a8040162ef5cdb56367d7f86554 SHA-1: e0cf36d13870761490e8cfcabd938ab38ef90641 SHA-256: 8ec8775d46b580067d37adf06a3ed4b53c95103a051cfa614bedaff91a821674
160 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, a technique commonly used to obscure malicious content or distribute phishing lures. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the immediate user-facing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://www.satisfyingyoursoul.org/uploads/1/3/0/6/130621212/fudatu.pdf In PDF document text
    • http://mibedandbreakfast.com/uploads/1/3/0/3/130323421/jusifasoro.pdfIn PDF document text
    • http://millymop.co.uk/uploads/1/3/0/4/130488362/8803582.pdfIn PDF document text
    • http://thevillagemiami.com/uploads/1/3/0/4/130488754/fdf03842.pdfIn PDF document text
    • http://daytonconcretecontractors.com/uploads/1/3/0/6/130621892/9599885.pdfIn PDF document text
    • http://boatinsurance.wales/uploads/1/3/0/6/130604525/niperumifanofej.pdfIn PDF document text
    • http://spam-cop.ch/uploads/1/3/0/7/130776741/wimeromu-dunaxen-tuzesa-tikoxuvimexugo.pdfIn PDF document text
    • http://allmanufacturingpersonnel.com/uploads/1/3/0/6/130639141/gudagizani_fawul_xejidirazoden_sakonoke.pdfIn PDF document text
    • http://artcenterla.org/uploads/1/3/0/5/130551714/819668.pdfIn PDF document text
    • http://cultural-competency.org/uploads/1/3/0/7/130738679/c9807eea5714936.pdfIn PDF document text
    • http://mollyjoseph2.com/uploads/1/3/0/8/130814178/lawodajafidix.pdfIn PDF document text
    • http://nicolealisonart.com/uploads/1/3/0/7/130775288/zomururaf.pdfIn PDF document text
    • http://newstylemarket.com/uploads/1/3/0/7/130775758/tuwakubiv_doxofodex.pdfIn PDF document text
    • http://webdisk.dantedesigngallery.com/uploads/1/3/0/8/130813362/gufegutiwex_zusazotes_fotipewito_zikuposobipodum.pdfIn PDF document text
    • http://etcc-obedclimbing.com/uploads/1/3/0/3/130379412/c3935c70c8af09b.pdfIn PDF document text
    • http://roanepublishing.com/uploads/1/3/0/7/130739756/a326f7.pdfIn PDF document text
    • http://trickonecustoms.com/uploads/1/3/0/6/130603917/57ea5.pdfIn PDF document text
    • http://dgnewyork.us/uploads/1/3/0/5/130588437/3223511.pdfIn PDF document text
    • http://somersetfoodtrail.org/uploads/1/3/0/6/130604049/130604049.html#sandesh+news+paper+today+gujarati+suratIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000021c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21C7 11952 bytes
SHA-256: 07cad322b0e18bc31bc1b1f0b8ff53953442e670de38045e636597d7be4d0d52
font_01_sfnt_off00003fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FE2 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea
font_02_sfnt_off00004b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B7A 7416 bytes
SHA-256: d630efbd6e0a09feba0078f4f61890093b1fea55012b1fced4e22037970c5352

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