Malicious PDF — malware analysis report

Static analysis result for SHA-256 0233829c5d6c8a2e…

MALICIOUS

PDF

70.7 KB Created: 2021-02-09 02:07:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 43746136bd0f611d5bf72f4a553d34ea SHA-1: 8572b8fbb17996ed510a59781afdef32f401f36d SHA-256: 0233829c5d6c8a2e8ddd5297e3e9c4139c6ccc4a6b94e73b529b4c76d9ac942f
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'seumenha.ru', which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to software, potentially 'Aspen Hysys 9.0'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wb?keyword=aspen%20hysys%209.%200 PDF link annotation
    • http://makikupake.iblogger.org/17303745812.pdfIn PDF document text
    • http://idclick.cash/cockroach_poker_rulesulocc.pdfIn PDF document text
    • http://dirtygirl.fun/bikeseteliseniamtaf.pdfIn PDF document text
    • http://podjem2.club/78162415432s9lit.pdfIn PDF document text
    • http://mimavuxaxokit.iblogger.org/backgammon_game_free.pdfIn PDF document text
    • http://safilow.iblogger.org/cc_mu_powerpoint_p_mien_phi.pdfIn PDF document text
    • http://usblighter24.site/mudapanip1q9fb.pdfIn PDF document text
    • http://gladkoe-telo.xyz/friend_zone_movie_hdua5lf.pdfIn PDF document text
    • http://kozupuj.iblogger.org/tabulawuvudefumarone.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/kuxezuropobaron64wow.pdfIn PDF document text
    • http://fishland.store/rapenozidirowuvaguxebr55ft.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/fewunadupop/18936369966.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/best_decaf_coffee_consumer_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/kubazaviretibu.pdfIn PDF document text
    • http://pubexet.rf.gd/donumetajam.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/93567544197.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/8381563539.pdfIn PDF document text
    • http://bomajada.epizy.com/ultraviewer_6._1_portable.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/lusugefonimifetewa.pdfIn PDF document text
    • http://gufobipadu.epizy.com/dalenevizafonano.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/84333769300.pdfIn PDF document text
    • http://jabuzom.epizy.com/21477288747.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_off0000d42b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD42B 4988 bytes
SHA-256: db93c4ee0b074eda35bd85106dc1570ccc8cf625923e61acb96886334e5e1466
font_01_sfnt_off0000e535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE535 12644 bytes
SHA-256: 4f811b89cdb677b4721f3892c6097e66604d94c92d23729b1fa25b42e28bceac

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