PDF malware analysis — malicious · be7bbf7eb0cbae9a

MALICIOUS

PDF

79.5 KB Created: 2021-07-19 01:06:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 410c923be6d270f53f9185648f4cffd1 SHA-1: 3913179d320f27596660a5453d2604dac68b971b SHA-256: be7bbf7eb0cbae9a696f6ed8e28a5db016133acf50202531f01a2b841b5414cc

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 suggests an attempt to redirect the user to malicious sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious intent, likely to lure users into downloading further malware or divulging sensitive information.

Machine Learning

Nyx PDF Classifier malicious score 0.9478

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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/razvivatel/yapz/~3/UkUWPC8UKDU/square?utm_term=baby+shut+do+do+song+mp3+download
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee2a7daa539923b584fc0d/1626221181400/warurukopomena.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec97370e7a3c5fba3f3997/1626117943633/best_photo_viewer_for_pc.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f3a077e13ee976660b9d8f/1626579064018/alexander_the_great_fall.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f18661425b7b741789bcc4/1626441313668/39091422240.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e785b67ef31d0d76ee00ba/1625785782279/hungry_dragon_mod_apk_unlimited_money.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f08ba89e9f5835e2bf30dc/1626377128621/namivowevuk.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee09d9588fb56695103be6/1626212825454/hair_care_for_frizzy_hair_at_home.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec991bbcf8be39b5073111/1626118427580/lee_county_water_and_sewer.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_off0000d4c7.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4C7	16792 bytes
`font_01_sfnt_off0000ecd9.bin` `e257ea985e74d68746ed34df3418bab8c77eab7b2046ad6ca1b82e18d2300421`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xECD9	16588 bytes
`font_02_sfnt_off00011818.bin` `96dfdb20cb64d4a7183202f78b498eb8271fe921568bec96dbe01ee80d66a426`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11818	11180 bytes

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