PDF malware analysis — malicious · 61f4618a04a2cd0a

MALICIOUS

PDF

78.2 KB Created: 2021-07-17 11:25:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: f03d20f0271353ba5c11bd43f178cea0 SHA-1: f642a03b1794c85f08e091126048f10085c67287 SHA-256: 61f4618a04a2cd0a4db74769cce680ccdfb0b49a68f9f8be3561d232b1b521a3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains embedded URLs, suggesting a lure to external malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards malicious intent, likely related to phishing or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.7062

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/y83TWYo-3DA/square?utm_term=atmosphere+meaning+in+bengali
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0c9e6840b985f2c5312f1/1626393062286/they_are_complaining.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f09d1f816bb346b5d1e861/1626381599896/punuduxemolig.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edcafd895aae42f6583198/1626196733973/how_to_get_marker_out_of_the_couch.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ed0675bde79631d33a81de/1626146421785/all_potions_in_minecraft_and_how_to_make_them.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec81b554a52c186ce4c7ca/1626112437462/the_lateral_surface_area_of_cylinder_is.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec97370e7a3c5fba3f3997/1626117943633/best_photo_viewer_for_pc.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec95203080d76c7a523597/1626117408170/81560676168.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c671.bin` `be67c3dd995309ebb5aa0c57ba808723f21e6f383f9cddecdd0f746e92056fe2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC671	17300 bytes
`font_01_sfnt_off0000f355.bin` `3081e1d29011b4ced9623a90b3545a4fdc3dae154ce476a399b3535eab64bc43`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF355	1804 bytes
`font_02_sfnt_off0000fbda.bin` `dcaf6e44ee6c5ba896eefdc01c3c364762e72e2c255ee90fea0696b01399f7c1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBDA	10820 bytes
`font_03_sfnt_off00011467.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11467	16792 bytes

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