Malicious PDF — malware analysis report

Static analysis result for SHA-256 2234b6cd7f981830…

MALICIOUS

PDF

101.8 KB Created: 2021-03-15 04:58:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2ba8107a2040bc6877c5b047c57655f SHA-1: 410f9c62a6d61c4f7375a6df4a22447d2cddeda6 SHA-256: 2234b6cd7f981830ac17afbc96869205d7a85504082a653b6a0d8d2234e307dd
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or download further malware. The document body, though heavily obfuscated, suggests a lure related to a product manual, which is a common tactic for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://midufefew.ru/wix?keyword=color+key+led+par+64+manual
    • http://lipuwisapi.mywebcommunity.org/5535189885.pdf
    • http://mebupevorodo.22web.org/integrated_cost_accounting_system.pdf
    • http://wimesuzajomos.mypressonline.com/antigona_velez_gratis.pdf
    • http://niwagiw.22web.org/79501858535.pdf
    • http://xokewekababawa.22web.org/gosofalisisetewiden.pdf
    • http://movajapenakinu.22web.org/django_template_context.pdf
    • http://xarapover.mygamesonline.org/turukiwizaponironudosir.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fogibi/divekozenu.pdf
    • https://uploads.strikinglycdn.com/files/9e81a800-d4b8-402e-9392-03647555c018/sylvia_day_crossfire_book_1.pdf
    • http://lezapogitoda.rf.gd/53235918104.pdf
    • https://uploads.strikinglycdn.com/files/bc4dd432-baac-4a11-b3ac-866b162eec5e/front_screen_door_designs.pdf
    • http://taxowojo.epizy.com/diploma_civil_engineering_books_free_download_in_hindi.pdf
    • http://bomajada.epizy.com/wezus.pdf
    • https://uploads.strikinglycdn.com/files/c458741d-acc5-4e5b-9e43-669cbf1da730/boruzivuzefe.pdf
    • https://uploads.strikinglycdn.com/files/25deec7b-d146-4553-9e47-51dc0d300c2e/marketing_executive_salary_in_saudi_arabia.pdf
    • https://s3.amazonaws.com/wifukedot/24_ghanta_bengali_news_weather_report.pdf
    • http://witesibezixu.epizy.com/92676123663.pdf
    • https://s3.amazonaws.com/purixifusipelid/5552866783.pdf
    • https://s3.amazonaws.com/xomepixo/new_oecd_guidelines_transfer_pricing.pdf
    • http://gapusamini.rf.gd/25295500680.pdf
    • https://s3.amazonaws.com/tokafanawa/asccp_colposcopy_guidelines.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_off00014dc4.bin
00b6329b853c7b0fac3c1bd79b0e4121dc0760847311dc2b26937bd1587d1ec1
pdf-font-stream PDF embedded font (sfnt) at offset 0x14DC4 5240 bytes
font_01_sfnt_off00015f8f.bin
f3745088c21464f900a2db95c674c59d62cc15ddbca6db2cafd271980dd17d33
pdf-font-stream PDF embedded font (sfnt) at offset 0x15F8F 13252 bytes