PDF malware analysis — malicious · 3ebdd3f0a81957d3

MALICIOUS

PDF

77.3 KB Created: 2021-07-12 22:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 3a38b8ddeb784880cdda975a341e55ea SHA-1: 8d222e2f1f8f531d86a9a8ea1a869234ea0b200b SHA-256: 3ebdd3f0a81957d3f00a5e1199a59deee7ff4b645159a4ddc1f697bb8fd32f8d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to redirect the user to malicious content. The PDF structure and embedded artifacts do not reveal specific scripting behavior, but the overall detection points to a malicious document designed to exploit user interaction.

Machine Learning

Nyx PDF Classifier malicious score 0.9680

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/UkUWPC8UKDU/square?utm_term=cnc+milling+stainless+steel
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec72f554a52c186ce3479f/1626108661134/moporuxopolekedejuz.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e9457f085b1c120f99517d/1625900415102/passion_project_ideas.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e9265337cb9044756027fc/1625892435889/34337884765.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec7e64dbb514329faeb550/1626111588507/feast_of_the_tabernacles_in_the_bible.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec848f4027437375969aba/1626113167720/jesofujepesevejira.pdf
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8c274e5d4731e3e95866c/1625866868981/fumijivubexupuzimuwokuf.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8af2484d3ab7bf438d544/1625861924277/mimuwadifaw.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8c597596d362fd0fc0ae0/1625867671494/muwabuwunomusetew.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_off0000ce33.bin` `46515377aeb095f6dd263b7c84e2c57225bd8aff3d1569af91e9c27a97ec0952`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE33	16724 bytes
`font_01_sfnt_off0000f9b7.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF9B7	16792 bytes
`font_02_sfnt_off000111ce.bin` `81884cb9e8b5993064d2c07bb4a17f818b3c8e344f17d5180bd3480378e33168`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x111CE	10384 bytes

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