PDF malware analysis — malicious · b040ca3f384dfd96

MALICIOUS

PDF

84.8 KB Created: 2021-07-17 19:39:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: deb95495ddc94fc3f547449ab624364e SHA-1: f92218dc308afdcf7bd682740e20e4d7f74adb78 SHA-256: b040ca3f384dfd9605094329aa427a34028d2427a4463dde0f2570fade07e239

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 high likelihood of malicious intent. The PDF contains embedded URLs that likely lead to malicious content or phishing sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting external resources, potentially for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9550

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/cEZ-xJcQpFE/square?utm_term=early+signs+of+tetanus
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f016d138a0fc3ca969a912/1626347217994/download_fifa_2019_android.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f04e622299d213002d1a1c/1626361443269/dungeons_and_dragons_artificer.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7cd1981ab8d1aa9de7d8b/1625804057975/44020281115.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f0fdf6c08012782f7ef03d/1626406391083/documentation_of_a_project.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0329a90ddb31b72aa6d22/1626354330531/baby_pileated_woodpecker.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f07de5f608047cbded4c17/1626373605792/vanoworavokedofitaveloxu.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f19f3512bef52ad3b5be6f/1626447669423/principles_of_physics_by_halliday_resnick_and_walker.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edb29b5d4dee687f4ac6fe/1626190492067/shatta_wale_songs_2019_download_mp3.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_off0000ebaa.bin` `331dc39603fddc1118463d69ba8af213f1d18fce5ea8b4c2393a6fe9694422c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEBAA	16632 bytes
`font_01_sfnt_off00011738.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11738	16792 bytes
`font_02_sfnt_off00012f4f.bin` `a815b75eb7f9d12c43084fb492e38ac438a5bd13010f8bdb964ff6e1d9ee8fa3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12F4F	10588 bytes

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