Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c64b22034441a3…

MALICIOUS

PDF

72.3 KB Created: 2021-04-14 04:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cfac1f8aeefc03ab966d4e2ca6e201e8 SHA-1: 979242e188c972929d5b68f0be159d01675285a8 SHA-256: 56c64b22034441a37e7b22728030b533d6480de6a3ce39627479205e85a20b14
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains embedded URLs, one of which is presented as a Traxxas Rustler manual. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of multiple embedded URLs suggests an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 http://www.grotekeukens.be/sites/default/files/webform/gmawards2018/30150103061.pdf
    • https://ambrose.edu/sites/default/files/webform/26147793628.pdf
    • http://klm3fg.grhosting.cz/sites/default/files/webform/files/56601188302.pdf
    • https://aboss.by/sites/default/files/webform/pibodanagulevegomenet.pdf
    • https://www.woonsocketri.org/system/temporary/webform/viwubamonutimujogigifowi.pdf
    • http://klm3fg.grhosting.cz/sites/default/files/webform/files/tekuxegejarikuferibo.pdf
    • https://www.osgeurope.com/sites/osg-corporate.dev/files/webform/47147916176.pdf
    • https://vectorcorp.net/sites/default/files/webform/resume/danodajanenalidadalibebav.pdf
    • https://www.telluridescience.org/sites/default/files/tstc-applications/30232074114.pdf
    • https://grossenbacher.co.nz/en/system/files/avoidance-training-certificates/xetomaroronep.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=traxxas+rustler+manual
    • https://lib.asu.edu/system/files/webform/midari.pdf
    • https://campusrec.princeton.edu/system/files/webform/7624886728.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_off0000db4f.bin
54af3d9102e4ca5329e1e8e926f81fe4032de96fcb5c64088fe78bc2368e579a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4F 4848 bytes
font_01_sfnt_off0000ebb5.bin
885483acc36df744b06a89bf63ff97069d40882b56ed77354e5daba388a60a0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB5 11772 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.