Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c743beaa95807b1…

MALICIOUS

PDF

65.1 KB Created: 2021-03-25 21:56:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92c825d0705edf88768c4c1f24e9fb90 SHA-1: 410a639e4b7d39e0f5c75721a97d3090bd92cbf3 SHA-256: 7c743beaa95807b18f47ccba6e32dd4b81145d606cbf9811a4e5d62fce0260b1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that redirects to a suspicious domain, likely intended to host a malicious payload or phishing page. The document body, though heavily obfuscated, suggests a lure related to 'musical notes images'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/aws?utm_term=musical+notes+images+in+colour
    • http://xutefizil.getenjoyment.net/que_es_dolor_en_el_hombro_derecho.pdf
    • http://subulowopuriko.iblogger.org/pasatoxovitovaregugujo.pdf
    • http://salufogi.iblogger.org/71547200186.pdf
    • http://xofebuledat.scienceontheweb.net/exercice_sur_le_comparatif_et_superlatif_en_anglais.pdf
    • http://itwow.info/zomudasemixemxrr43.pdf
    • http://zootime.store/14993615404ht9y4.pdf
    • http://zegobudipaju.mywebcommunity.org/internal_audit_plan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/podawakumepewez/87787132784.pdf
    • https://da89e6ec-52f9-4c28-8de8-447a2e923c0c.filesusr.com/ugd/5e5b2a_673bbef8439645eab522b05ba76e80e4.pdf?index=true
    • http://gexilel.rf.gd/unexamined_life_is_not_worth_living_essay.pdf
    • http://fasekefap.epizy.com/pewodozavilaxovopeka.pdf
    • https://s3.amazonaws.com/bulalowisu/beqabu_hd_video.pdf
    • https://s3.amazonaws.com/wemazun/how_to_politely_say_no_to_mlm.pdf
    • https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_105c0ef9179541278f2de6bc868d3526.pdf?index=true
    • https://3c86e5df-9a55-47dd-9d5b-c207b25ec6cd.filesusr.com/ugd/72bf36_d1a690d4708040718c42d40212a59d73.pdf?index=true
    • http://wejufutaz.onlinewebshop.net/summer_waves_14_solar_pool_cover.pdf
    • http://wokobunowome.epizy.com/xolireragojexazukejupasar.pdf
    • https://s3.amazonaws.com/wumodukubaru/tricep_extension_machine_form.pdf
    • http://potunivezu.epizy.com/luxury_sofa_3d_model_free.pdf
    • http://likifodafiduno.epizy.com/62484697244.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.

FilenameKindSourceSize
font_00_sfnt_off0000c4b6.bin
a547f59f47fa485c0cb4592b0145cdd8907c076a53935b6e9de9316856ed47a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B6 5124 bytes
font_01_sfnt_off0000d614.bin
1851f415d52ab94e064aaf9aa1664e6660257475d8e302a26ae043c7bece98d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD614 9560 bytes

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