Malicious PDF — malware analysis report

Static analysis result for SHA-256 969a60dc727dc6eb…

MALICIOUS

PDF

70.0 KB Created: 2021-04-18 20:38:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 043114a713c96dbf361f2c421798bad1 SHA-1: 087f46a5a0fd825b987edaa3ebd5453cc5961eca SHA-256: 969a60dc727dc6eb27bc5dfee35efb9365a3189b3b2fab8e55daf91dd2a25af0
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded URLs that lead to suspicious domains, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, indicates a lure related to Google Maps distance measurement, likely to trick users into clicking malicious links.

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 https://vectorcorp.net/sites/default/files/webform/resume/sabaw.pdf
    • https://www.dgs-interparts.be/sites/default/files/7838369457.pdf
    • http://www.friendlycc.com/sites/default/files/webform/fajabenofedutetigolexid.pdf
    • http://www.pbttphtk.gov.my/sites/default/files/webform/42283273604.pdf
    • http://www.birdlifebotswana.org.bw/sites/default/files/webform/sightings-sketches/12812059159.pdf
    • https://www.ofalloncasting.com/sites/default/files/webform/66890294103.pdf
    • http://www.pbttphtk.gov.my/sites/default/files/webform/3018222411.pdf
    • http://www.sumnercountyhospital.org/sites/default/files/webform/sinuwoxifazuroli.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=distanz+mit+google+maps+messen
    • https://gradfutures.princeton.edu/system/files/webform/xafuzekimizitigemuseli.pdf
    • https://www.ice.cam.ac.uk/sites/www.ice.cam.ac.uk/files/webform/xegenaxug.pdf
    • https://lib.asu.edu/system/files/webform/53252105934.pdf
    • https://www.vub.be/sites/vub/files/webform/lijulur.pdf
    • https://thesanfordschool.asu.edu/sites/default/files/webform/20850651402.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_off0000d62c.bin
99c59a0a921a576da9ebde559332b2e1724754021eaee3f55151b458cd4a5311		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD62C 5092 bytes
font_01_sfnt_off0000e77e.bin
62c63f1415f679269a55ac3a6e60a64881dd48c9b5c8032b66b8902affcf1961		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE77E 10912 bytes

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