Malicious PDF — malware analysis report

Static analysis result for SHA-256 b194471324a19af1…

MALICIOUS

PDF

100.9 KB Created: 2021-05-13 10:06:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0cee907090ddd5abe7150380d008621 SHA-1: 5f1b7cfe65d844044ed5496673aec7c8c329b278 SHA-256: b194471324a19af1e0a023400d0e5ccbe2f6a2afc5d9832e7de165df9eabc736
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains keywords related to fitness, suggesting a lure for the phishing 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://seumenha.ru/strik?utm_term=how+to+get+lean+body+in+3+months
    • https://lelusujizuzu.weebly.com/uploads/1/3/1/4/131438438/e2f12fcb2a.pdf
    • http://biwiroxefamir.mywebcommunity.org/94197990360.pdf
    • http://xenakasewexibal.sportsontheweb.net/fundamentals_of_the_analysis_of_algorithm_efficiency.pdf
    • https://cdn.sqhk.co/pogezasamu/ciiibhh/bovada_sports_betting_taxes.pdf
    • https://static.s123-cdn-static.com/uploads/4405638/normal_5ff674827dca2.pdf
    • https://sudororurupe.weebly.com/uploads/1/3/4/6/134602833/tadowere_julawesapolem_talikeduxudatim_sutifafisuse.pdf
    • https://cdn-cms.f-static.net/uploads/4409425/normal_600c3546530f7.pdf
    • https://kotasixunepa.weebly.com/uploads/1/3/0/7/130776076/pabotezog.pdf
    • https://cdn-cms.f-static.net/uploads/4449405/normal_5fd87962bfe46.pdf
    • http://vumexovuvelafe.medianewsonline.com/sabonetitepexukivaj.pdf
    • https://gomamuna.weebly.com/uploads/1/3/5/3/135304292/dalikojubumevuzif.pdf
    • http://idealicacolumbia.site/final_fantasy_7_original_review_ign0c70y.pdf
    • http://firstdoctor.xyz/difagage7oaau.pdf
    • https://cdn-cms.f-static.net/uploads/4481522/normal_601c5bb115604.pdf
    • https://cdn.sqhk.co/tejilunuf/Egiidij/xafogogobewizujimenekaw.pdf
    • http://momarivido.mypressonline.com/exercice_corrig_algorithme_liste_chaine.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://muvemaxadal.onlinewebshop.net/agro_ecological_zones_in_sri_lanka.pdf
    • http://sisawujeza.rf.gd/santa_baby_chords.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_off00014b92.bin
b98d2e3b8090a546250a40f47028e45e49cc376cea5533ef525e0f83ade186b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x14B92 5600 bytes
font_01_sfnt_off00015e8c.bin
dad7ffb35f5b218b1668ccceb3e2d5cee3c03949df0b762f7e831c32f3e45d4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x15E8C 11500 bytes