PDF malware analysis — malicious · 34e8360d9c3d7c56

MALICIOUS

PDF

78.7 KB Created: 2021-07-19 02:38:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 7962ec4f5746d52ba691310638d342d8 SHA-1: c1e153f0a0771eab12c3b2090b6d46c3bda96685 SHA-256: 34e8360d9c3d7c56d017ec8a55e9d15d4053f6f35634783af2cd417bbbebdead

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing attempt. The embedded URLs suggest the document is designed to redirect users to external sites, likely for credential harvesting. No scripts were extracted from this sample, but the presence of embedded URLs and the overall detection profile strongly suggest a phishing attack vector.

Machine Learning

Nyx PDF Classifier malicious score 0.9478

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/razvivatel/yapz/~3/UQ8tT55rDuk/square?utm_term=normal+partial+pressure+of+oxygen
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee074dd6ef6771c1e03591/1626212173563/bozomajexile.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e9453818245d33f182d634/1625900344467/witcher_3_gwent_trophy_guide.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ecaaa1f9183728738a849f/1626122913227/33076303665.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f15f0274384d54fdffe07d/1626431235341/5_kg_to_g.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e890877095f53b5d99e792/1625854087619/gce_a_level_results_2020.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec8939e64ce5371635621c/1626114362033/right_humerus_pain_icd_10.pdf
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f11ac61c98e64adee7f10e/1626413767027/recommended_hot_water_heater_temperature.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f4a5440dbab00e46f1821b/1626645828502/kiwegawimali.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_off0000d0cc.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0CC	16792 bytes
`font_01_sfnt_off0000e8e3.bin` `74ea5a7f7f1498aaeae48d580189ad75b711eabda709ce813d7a410db851a1ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE8E3	10992 bytes
`font_02_sfnt_off00010277.bin` `96174312955426bba46dfbb0e559580636e2de7f6898bd81aeaf19d0af54a2b3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10277	17128 bytes

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