PDF malware analysis — malicious · 5033f19181d350a4

MALICIOUS

PDF

84.0 KB Created: 2021-07-13 16:39:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 9ca70e532c921c560ac7b17683f2bcf1 SHA-1: cabda2b090115298245072384ced4894d9b82b28 SHA-256: 5033f19181d350a4866fcf5ee579afb03c48589c1a80c4f64ff8560f572e67de

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classification and ClamAV, with heuristics indicating the presence of an external URI. Although the document body is heavily obfuscated and unreadable, the embedded URL points to a resource that, while labeled benign in this context, is part of a pattern often used for phishing or malware distribution. The PDF structure itself does not reveal specific malicious scripting, but the presence of an external link is a strong indicator of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.8790

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/v-xubMviL4Y/square?utm_term=pc+building+simulator+android+mod+apk
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e86183732d3c6921e97948/1625842051895/70070982784.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8609544497c3ffe66dfd9/1625841813572/jozakatefugikalepuso.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec920d7a6a16267649c9bf/1626116622119/hollym_holiday_park.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec8dda5338e9546e4783a9/1626115546392/godzilla_king_of_the_monsters_2019_watch_online.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7dabc9ebc0053f31655f5/1625807548326/quiz_questions_on_politics_with_answers.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e79a731d61f435cef4389e/1625791091771/american_airlines_boeing_737_800.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ecd114526e290873848236/1626132756277/how_to_change_background_color_in_word_2007.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_off0000e5b4.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5B4	16792 bytes
`font_01_sfnt_off0000fdcb.bin` `56e533955a5af4edfae21b70d34b51a4ce0313b380ad09d82548d14ca6ba5ff2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFDCB	11056 bytes
`font_02_sfnt_off00011710.bin` `cb601a36c9aefa2f42afe0822fff0aeb6b2671960e39b7af65b2b8bbbc9b1032`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11710	17028 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.