PDF malware analysis — malicious · a557e5cf3b03660b

MALICIOUS

PDF

73.9 KB Created: 2021-03-27 21:55:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c59be6aff96d04c5084c91af859988a7 SHA-1: 24911e28bacb6dd88b534e31dc92f454cc55e1c1 SHA-256: a557e5cf3b03660ba73ef90929f56f5594f5bc2cb34fd06fb4338d4cd04fd3bf

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains embedded URLs that lead to suspicious domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall classification point towards a phishing lure designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/strik?utm_term=f+table+two+tailed+calculator
- http://velesvoyage.ru/cuanto_cemento_lleva_un_metro_cubico_de_concretoetpay.pdf
- http://rubodedi.iblogger.org/angular_4_convert_html_to.pdf
- http://gafaneripebenu.iblogger.org/econometrics_gujarati_solution_manual.pdf
- http://xelapelumu.iblogger.org/58535995075.pdf
- http://xelasurugopu.mywebcommunity.org/twitter_sports_picks.pdf
- https://cdn.sqhk.co/sofopiro/gxjaJhh/sinadubagebojotesajosafa.pdf
- http://update-win20.online/bangla_screen_tv_apkz8xbf.pdf
- http://fringigejy.site/p0120_throttle_pedal_position_sensor_switch_a_circuitzy3r2.pdf
- http://lujedovijoluje.22web.org/what_is_another_word_for_first_of_all.pdf
- http://gamokidawenikon.iblogger.org/1685860404.pdf
- http://lalikexitaxixix.getenjoyment.net/vilojegebatiresume.pdf
- http://boludibaderujir.22web.org/logiciel_pour_combiner.pdf
- http://jawixogu.mygamesonline.org/deresomoxu.pdf
- https://cdn.sqhk.co/pivokazi/1KgghfC/25140425993.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://golofup.rf.gd/15110958260.pdf
- http://nuduvemomuto.epizy.com/how_much_sodium_in_wendys_spicy_nuggets.pdf
- http://tobezizasatixib.epizy.com/pdf_angina_de_pecho.pdf
- http://nalosig.rf.gd/tofiki.pdf
- http://sezigan.epizy.com/92508074047.pdf
- http://jogufek.epizy.com/kindle_fire_hd_3rd_generation_android.pdf
- http://kexesunewe.rf.gd/60788909934.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e3e7.bin` `1800c6d0a9dfeb05839c560e14960f1e677d7706fbec47b318844c628c34fc01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE3E7	4940 bytes
`font_01_sfnt_off0000f4d4.bin` `f7d8e37d509f54c674ce1cca2b13cdc5f9ea2defa260011fa6aec3c2c19a684e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4D4	11004 bytes

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