PDF malware analysis — malicious · a7119a03294fccb3

MALICIOUS

PDF

74.9 KB Created: 2021-07-20 01:11:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 1c9a12b1f4e9b4cb899460fe45199859 SHA-1: c477e87d91c376d659700daa81514e59c2274d12 SHA-256: a7119a03294fccb35159b6cdbfc83cfcadf08b283a56df76a5d3713ccbfcd38b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests it may be used as a phishing lure or to download further malicious content. The obfuscated document body and the use of wkhtmltopdf for generation point towards a crafted malicious document.

Machine Learning

Nyx PDF Classifier malicious score 0.9937

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://feedproxy.google.com/~r/sq/ugae/~3/uzX87CUNjRg/square?utm_term=wow+the+heart+of+azeroth
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ed30baa17c7f1bf0010b8d/1626157242881/53214575576.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ed97b89117a44628c01f86/1626183608752/a_temporary_matter.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f4301b1434f635472c6076/1626615835791/37443320320.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f4eb0281f38b205899be86/1626663682567/61713386859.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f05959316372555b42c9f3/1626364250108/vogus.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f54d2d860d895b483f479d/1626688813533/class_10_english_textbook_download.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec79acd0153e73bf8acd68/1626110380678/17239592956.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f5e82a4ce737406a3505fa/1626728490164/dr_18_pvc_pipe_specifications.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f05d216bdd402ae1016bd8/1626365217398/12878828905.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c732.bin` `ceeb629105031561ef4ca7d92d86de81bc8a7bd116459df213dbc68e64ab709a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC732	10040 bytes
`font_01_sfnt_off0000ddbe.bin` `542d333d80f336e662946fb1a48d1e59be9f80d373db1eb97ef15ab7a327d8e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDBE	15756 bytes
`font_02_sfnt_off00010626.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10626	16792 bytes

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