PDF malware analysis — malicious · 43b3cb07e5c5f047

MALICIOUS

PDF

81.6 KB Created: 2021-07-14 02:46:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: bd7d55a1c1d6e50ffcf80525a4b0ae1a SHA-1: 45c62d81abfbffb44567851d04989da8631da50e SHA-256: 43b3cb07e5c5f0472ac8d9294356b880d376c7fad212a70c00cdebf580079c02

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected as malicious by a machine learning classifier and ClamAV, indicating it is a phishing trojan. The PDF contains embedded URLs that likely lead to further malicious content or phishing pages. The presence of external URIs suggests an attempt to redirect the user to a compromised or malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9912

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/UQ8tT55rDuk/square?utm_term=import+pdf+into+ppt
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e882449af3861f94350643/1625850436552/jezilazijabesik.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e9457f085b1c120f99517d/1625900415102/passion_project_ideas.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7c72b687a3d659a4b2cb1/1625802539771/demofilimijemomada.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e944f358c6623f038375ba/1625900276106/kefuten.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e9166c37da2614570dbb65/1625888364623/standing_seam_metal_roof_details.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60edd24b2e8a4a2aca789812/1626198603698/all_angles_of_parallel_lines.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee04668f209f4d8287d775/1626211430374/88796282407.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e79cad4454ab0ddd827928/1625791661508/class_10_science_set_1_2020_solutions.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8194d4261ba7980638313/1625823565777/xalotewizapivejesofum.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_off0000e08f.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE08F	16792 bytes
`font_01_sfnt_off0000f8a1.bin` `9ee19ae762a3777c10f723855ffb9c380ec9f71f6b5c3636e2b59aebb592c224`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8A1	16760 bytes
`font_02_sfnt_off00012429.bin` `dd5dfd2ee93308ed6ee8b26d019cbaddd9fb35065442ff72d67959fa6b201bbc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12429	10104 bytes

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