Malicious PDF — malware analysis report

Static analysis result for SHA-256 413e3b868ad601bf…

MALICIOUS

PDF

114.4 KB Created: 2021-04-07 20:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64e970a0e7985a0ce71e873abab91774 SHA-1: ade51769c65de7c20c092920d575eaea2db1e476 SHA-256: 413e3b868ad601bf06b368573c406068b9550b6a07ccc885cef38423f1fa8cab
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to a suspicious domain, identified by heuristics as a potential phishing lure. ClamAV detection and ML classification strongly indicate maliciousness. The document body, though heavily obfuscated, appears to be a garbled attempt to disguise the malicious intent, likely related to the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/wix?keyword=luca+de+alfaro+rate+my+professor
    • http://xenakasewexibal.sportsontheweb.net/72230153180.pdf
    • http://zitugaxusi.mygamesonline.org/sunilalewezolirovudiwovik.pdf
    • http://startask.ru/75913523789l9561.pdf
    • http://bizifemodefi.mygamesonline.org/25858765764.pdf
    • http://xafesuvorolivig.scienceontheweb.net/marginal_costing_techniques.pdf
    • http://lozomaneje.getenjoyment.net/cgst_act_section_list.pdf
    • http://pakekoramiduwin.getenjoyment.net/kakuraromuxagalumevola.pdf
    • http://bonozowibewoz.mypressonline.com/duratinebivilof.pdf
    • http://gavolav.mywebcommunity.org/70593413686.pdf
    • http://junumidutuzakox.getenjoyment.net/81584551069.pdf
    • http://devuweza.scienceontheweb.net/catalogo_avon_6_2020.pdf
    • http://ueuniti.website/2735448063822653.pdf
    • http://katorewudejizut.22web.org/present_perfect_tense_vs_simple_past_tense_exercises.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kokexaxuseru.epizy.com/tumumamuvasunejeratutuna.pdf
    • http://gataton.rf.gd/pelirowitiwawuvuvuwoximas.pdf
    • http://pevogikuxupeja.onlinewebshop.net/archimate_3._0_specification.pdf
    • https://uploads.strikinglycdn.com/files/e0d4fa3d-3a1c-44f5-8e55-1f68b0d75c33/can_you_get_tv_signal_with_rabbit_ears.pdf
    • https://uploads.strikinglycdn.com/files/22979baa-f2fe-4353-9a77-68610624f1c8/bodyweight_workout_routine_to_lose_weight.pdf
    • http://rawozenagi.epizy.com/texomamijosilazex.pdf
    • http://nejarisiwudu.atwebpages.com/80598240225.pdf
    • http://logiweliziweje.onlinewebshop.net/2015_washington_redskins_cheerleaders_roster.pdf
    • https://uploads.strikinglycdn.com/files/87b4cdf8-3cdb-4093-9369-0f0e25953bc7/cutepdf_cnet_download.pdf
    • https://uploads.strikinglycdn.com/files/91401646-3753-4b4c-826a-202c5455b268/why_does_my_vtech_phone_say_line_in_use.pdf
    • http://mifinuxob.epizy.com/vibinipotajutiton.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_off00017f98.bin
0a54dafeb0bbe4f6cd8e893b7f8da1375998eb08460772ee3a729872d9745790		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17F98 5344 bytes
font_01_sfnt_off000191c4.bin
7f34ee7eef441eb518097b0c7bd795de2a1e125ac9450c336c0677b759799311		 pdf-font-stream PDF embedded font (sfnt) at offset 0x191C4 13172 bytes

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