Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a974086bee0e7a0…

MALICIOUS

PDF

85.1 KB Created: 2021-02-23 13:51:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11bd3e8fbcb0df0244309e9ee8024b71 SHA-1: b89896264ab0e332f950926025b72ffb52122e6e SHA-256: 1a974086bee0e7a0a3b514f32fa2dcd9fd377b96e3aca87905f28b2e9a5ad402
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of external URIs suggests a download or redirection attempt.

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://bologen.ru/wix?keyword=apush+chapter+21+an+emerging+world+power
    • http://dvertsoff.ru/8015778835xnawx.pdf
    • http://winnerslm.space/91576225352i28qr.pdf
    • https://static.s123-cdn-static.com/uploads/4496585/normal_6002bddb5f61d.pdf
    • http://jupumatoza.iblogger.org/detective_chinatown_2_full_movie_free.pdf
    • http://rigares.iblogger.org/8762727201.pdf
    • http://euroshopme.site/toy_defence_2_hacked_apkz4l9y.pdf
    • https://static.s123-cdn-static.com/uploads/4488332/normal_5fc6840eefa05.pdf
    • http://helpverifedbadges.com/36120573732qh4h.pdf
    • http://uanews.website/49562920771lsfaw.pdf
    • https://static.s123-cdn-static.com/uploads/4444877/normal_5fe1ccbf70f68.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pujusojup.epizy.com/cambridge_primary_review_2009.pdf
    • http://fezazupeniles.rf.gd/every_step_you_take_piano_sheet_music.pdf
    • http://bavodokebak.rf.gd/safety_1st_ear_thermometer_49659.pdf
    • http://nukalisunu.rf.gd/walmart_grocery_app_in_spanish.pdf
    • http://porojerosisogu.rf.gd/caracteristicas_de_los_cestodos.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_off00010eae.bin
b78f3ed276f28f72f33ed66245f14da1074efd0c1043947594819381d4a0da5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EAE 5752 bytes
font_01_sfnt_off0001222b.bin
24b959f7206373704747ac0db12090fbeb9bc035dafef7faf420855e906b2395		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1222B 10700 bytes

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