Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5edc30fdd3883b7…

MALICIOUS

PDF

77.6 KB Created: 2021-02-16 01:30:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 36153015f78d5afbce63c892dbcc6e21 SHA-1: 11e9d8dd3ba6f2d33af65d3b243584c4418f08f9 SHA-256: b5edc30fdd3883b70d75983ee8000459d029fec177563443a219ffeae6439ee0
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to "survival skills movie wikipedia", suggesting a lure to entice users to click the malicious link.

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://seumenha.ru/123?utm_term=survival+skills+movie+wikipedia PDF link annotation
    • http://frut-tree.site/gupoziperirisojofihalnp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_5fd7955dad3c2.pdfIn PDF document text
    • http://printnews.site/nepilelumedejururuzomisep8sk3n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384296/normal_5fffa29a5f746.pdfIn PDF document text
    • http://poopo.ru/julakemapegavered0cx1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446166/normal_5fe5ada395a13.pdfIn PDF document text
    • http://pirewixuzejetin.iblogger.org/booty_farm_hack.pdfIn PDF document text
    • http://fartook.online/albert_fish_book9hfew.pdfIn PDF document text
    • http://lnstagram-blue-ticks.com/bikiwanajaferabavanisobyiy30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412773/normal_60247bb71fb92.pdfIn PDF document text
    • http://vorotiw.iblogger.org/automower_315x_user_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/el_dificil_arte_de_amar_pelicula_online_gratis.pdfIn PDF document text
    • http://gasoxesa.rf.gd/4887541236.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/20646564194.pdfIn PDF document text
    • http://gevalej.epizy.com/brick_breaker_mod_apk_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/migoxugalukasizijexune.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/split_king_bed_sheet_sets.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/telugu_movies_2018_3gp_hd.pdfIn PDF document text
    • http://bidetorula.rf.gd/81549811980.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A5 5424 bytes
SHA-256: 831d0e2b4adceaca8586775bf236f1e4319bf6fc8081d24b5fe01b7dc05d4f61
font_01_sfnt_off00010513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10513 10592 bytes
SHA-256: 7d3b7307c327407586dd9a5655ac33ff9a49d4a41bce6abd030cbeee888cb90c

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