Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5e95859bc889942…

MALICIOUS

PDF

91.3 KB Created: 2021-03-03 17:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83ce6ec8f3c520f6060444641e46f555 SHA-1: 749d0a982437dbf49192578565b994a2a4c48771 SHA-256: d5e95859bc889942749df7b756adaa62218cb40b93affa0ea3a3ea59a1b59565
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous URLs, one of which is directly referenced in the document body as a 'Tasco telescope review'. This URL, https://botokaw.ru/123?utm_term=tasco+telescope+600x50mm+review, likely leads to a phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://botokaw.ru/123?utm_term=tasco+telescope+600x50mm+review
    • http://merovew.xyz/83566133337zth08.pdf
    • http://fuzirirofo.iblogger.org/manejedebisidet.pdf
    • https://cdn.sqhk.co/jasurisunav/5ggiiji/nelisirelirirefigar.pdf
    • https://cdn.sqhk.co/javukapegami/Wjcjb34/heroes_circle_jamaica_crab.pdf
    • http://prizinsta.info/jefigifewajite3x7v7.pdf
    • https://cdn.sqhk.co/figakeves/Pjigflc/78090325865.pdf
    • https://nelotimef.weebly.com/uploads/1/3/2/7/132740277/zexala.pdf
    • http://philonio.online/long_and_short_e_worksheets62pj4.pdf
    • https://pixamowogiru.weebly.com/uploads/1/3/4/5/134590731/7377343.pdf
    • http://cosmeteca.com/77455146166r6a7f.pdf
    • http://hamlikjorettoop.ru/dotted_cursive_writing_font_free0z6fm.pdf
    • http://cardio-natural.info/google_chrome_free_filehippo55tra.pdf
    • http://s-tochka.ru/ptz_camera_controller_androidfraw1.pdf
    • http://podarokinsta.site/nikekepejarufupisuvodim30nss.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rumezo/vulawozijoni.pdf
    • http://ligumawi.epizy.com/animated_background_after_effects_template_free.pdf
    • https://s3.amazonaws.com/zodawanuror/gunatedumivoriwuzokeneza.pdf
    • https://s3.amazonaws.com/xetasif/ganpati_aarti_song_video.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001259a.bin
a9460701023c747602396542375e39969c7b56b315c14f2783de331ed3564c32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1259A 5668 bytes
font_01_sfnt_off000138e1.bin
5dc84241169cd9e86cf7c40b748a0136fa7bd4aa8f3c2793b892db83fab17221		 pdf-font-stream PDF embedded font (sfnt) at offset 0x138E1 11460 bytes

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