Malicious PDF — malware analysis report

Static analysis result for SHA-256 d72a9154085eedef…

MALICIOUS

PDF

46.1 KB Authoring application: Nitro PDF First seen: 2020-09-24
MD5: 8161b103521b7291e729febbd5737deb SHA-1: 9ede0a363051d1eae62cf4845662282ee0e7e1d3 SHA-256: d72a9154085eedeff57618439258ba6eed8db45dc8825ab5a1742b4ab992fd11
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 external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or malicious redirection attempt. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious nature of the document. The presence of a visual download button also indicates a lure to encourage user interaction with the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://civilwarlady.org/uploads/1/3/0/3/130313345/559709a8e81f.pdf In PDF document text
    • http://qiiqgroup.com/uploads/1/3/0/3/130379194/668480.pdfIn PDF document text
    • http://buildclicks.com/uploads/1/3/0/4/130488312/novomufot.pdfIn PDF document text
    • http://www.presson-products.com/uploads/1/3/0/2/130270991/nexomavu_temitapelorime_bizotoz.pdfIn PDF document text
    • http://magicalcryptofriends.org/uploads/1/3/0/3/130323097/figafuxilalidu.pdfIn PDF document text
    • http://mind4age.com/uploads/1/3/0/6/130605438/7611817.pdfIn PDF document text
    • http://merrycollections.com/uploads/1/3/0/4/130476322/kerodafik.pdfIn PDF document text
    • http://www.ktsky1.com/uploads/1/3/0/6/130604982/e0f44.pdfIn PDF document text
    • http://karenjrohrlach.com/uploads/1/3/0/7/130776197/nesopujotejifiva.pdfIn PDF document text
    • http://fby4.com/uploads/1/3/0/6/130639750/xiwikojonifaxe.pdfIn PDF document text
    • http://jakebrenneise.org/uploads/1/3/0/4/130478438/4595773.pdfIn PDF document text
    • http://memoirsofatechnocrat.com/uploads/1/3/0/2/130289204/b6f099a21fc9810.pdfIn PDF document text
    • http://doorrushfour20.com/uploads/1/3/0/6/130604355/1740832.pdfIn PDF document text
    • http://zenithenergy.com.au/uploads/1/3/0/4/130476317/201133.pdfIn PDF document text
    • http://adagedanceanddrama.com/uploads/1/3/0/7/130775374/3248742.pdfIn PDF document text
    • http://globalcompubot.com/uploads/1/3/0/6/130604248/wutiruvedudeguroxa.pdfIn PDF document text
    • http://www.pludarts.com/uploads/1/3/0/7/130739947/pexufurib.pdfIn PDF document text
    • http://yoursoulswork.com/uploads/1/3/0/6/130621838/tiwelil.pdfIn PDF document text
    • http://www.correctiontech.com/uploads/1/3/0/5/130589264/kasareboluwub.pdfIn PDF document text
    • http://activopulse.com/uploads/1/3/0/2/130270956/b8c3bf72c250b1c.pdfIn PDF document text
    • http://visionartanddesign.com/uploads/1/3/0/8/130873915/453743.pdfIn PDF document text
    • http://paulleicht.com/uploads/1/3/0/5/130546243/fd2bb6ea71.pdfIn PDF document text
    • http://ume.bh/uploads/1/3/0/6/130621011/povurubasalara.pdfIn PDF document text
    • http://aldensuites.devsite-1.com/uploads/1/3/0/6/130603966/130603966.html#turntable+alignment+protractor+pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000039ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39EA 16204 bytes
SHA-256: f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d
font_01_sfnt_off000051de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51DE 8168 bytes
SHA-256: 4890ad1a084e26e1c55d0ae93b3420ea7d41332c2c31da225f97005c67e257fc

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