Malicious PDF — malware analysis report

Static analysis result for SHA-256 496b84ad3833041d…

MALICIOUS

PDF

70.6 KB Authoring application: Smallpdf Desktop First seen: 2020-09-24
MD5: 8500f84472ca0d6872e61ed579013547 SHA-1: 86a24887e1d9df2d7e316c7089fe25dbd2b378d9 SHA-256: 496b84ad3833041d7880c6d8e80cab876c9da7dc0a4ab2c35c846a14e821c815
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. This suggests a malicious intent to manipulate search engine results or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection scheme. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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.portersneckyogaspa.com/uploads/1/3/0/5/130550884/sojejisapedupaduk.pdf In PDF document text
    • http://www.mobilemealsoftucson.org/uploads/1/3/0/6/130621532/lolofapuluwun_zikusew_bifapojinosa.pdfIn PDF document text
    • http://mydiabbyhc.com/uploads/1/3/0/3/130313463/3565003.pdfIn PDF document text
    • http://norfolkeventmedicalservices.com/uploads/1/3/0/4/130488875/sopipenapijazuta.pdfIn PDF document text
    • http://thelifeprotectionacademy.com/uploads/1/3/0/6/130605341/xibigukiduvok.pdfIn PDF document text
    • http://www.kasey.eu/uploads/1/3/0/2/130271030/kenozepigobij.pdfIn PDF document text
    • http://thenaturalhome.co.uk/uploads/1/3/0/5/130589199/nuseku-lipexosubo-mipigopaxiwa.pdfIn PDF document text
    • http://conquermarketing.org/uploads/1/3/0/6/130639251/8692007.pdfIn PDF document text
    • http://aftercareusa.studio/uploads/1/3/0/5/130538870/9473445.pdfIn PDF document text
    • http://www.rockstarsz.com/uploads/1/3/0/7/130776836/vobesupozagevusutitu.pdfIn PDF document text
    • http://challengingshakespeare.com/uploads/1/3/0/2/130274024/gagifawarixowubajano.pdfIn PDF document text
    • http://www.4kinspirehope.com/uploads/1/3/0/4/130488163/didopibolob.pdfIn PDF document text
    • http://mytayloralexander.com/uploads/1/3/0/2/130272973/nefetevovuradad.pdfIn PDF document text
    • http://adultsthemes.com/uploads/1/3/0/6/130621182/3185537.pdfIn PDF document text
    • http://americanlighting.org/uploads/1/3/0/3/130313673/1a262966c01.pdfIn PDF document text
    • http://www.tokeplusherbs.com/uploads/1/3/0/7/130738638/7252621.pdfIn PDF document text
    • http://citykittyfurniture.com/uploads/1/3/0/2/130287837/jufalix.pdfIn PDF document text
    • http://bathwildwalks.co.uk/uploads/1/3/0/7/130739206/2048558.pdfIn PDF document text
    • http://codenamehustle.com/uploads/1/3/0/2/130288427/1470388.pdfIn PDF document text
    • http://kevingiancolagolf.net/uploads/1/3/0/4/130483345/953356.pdfIn PDF document text
    • http://kkyulekaihu.br3h.com/uploads/1/3/0/8/130874485/130874485.html#basic+english+to+hindi+vocabulary+pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000896a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x896A 25432 bytes
SHA-256: d937d754cee7ca4c3c9269057b752ddfb055dee5497fc369a093f87a35ee4e59
font_00_sfnt_off000052cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52CF 1388 bytes
SHA-256: 1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
font_01_sfnt_off00005ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEB 16032 bytes
SHA-256: a888ed03f60f27f268c2d8735f06a640056d0f9bb4d64233ba26c84ed6e51504
font_03_sfnt_off0000b547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB547 8192 bytes
SHA-256: f0eba7867156c0ba24fdeaacfb32adbb55380f59fb41aeb8e34ae3956265daf3

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