Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fb2addce331267e…

MALICIOUS

PDF

72.5 KB Created: 2020-12-26 00:52:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3b5809c65bcf74f7551342071398f0a1 SHA-1: 471ea3a638e9d7110cbe34fd5ae59990061f484b SHA-256: 9fb2addce331267e7911c8520c8b369b9e0481d2e7b379935e03e9623db482ea
96 Risk Score

Malware Insights

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

The file was detected as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The PDF structure and embedded URLs suggest it is part of a phishing campaign, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafftec.ru/wb?keyword=snake%20plant%20propagation%20rotting PDF link annotation
    • https://cdn.sqhk.co/nerutamar/icwjeFE/genshin_impact_reroll_guide_android.pdfIn PDF document text
    • https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/luraninefud.pdfIn PDF document text
    • https://cdn.sqhk.co/tixelila/bibihjf/vodafone_yan_mda_cark_cevirme_ne_zaman_yenilenir.pdfIn PDF document text
    • https://mimudokax.weebly.com/uploads/1/3/4/7/134742140/3163503.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/AOhjhiz/mechanics_bank_auto_loan_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/waderapal/jijjgg9/dumuko.pdfIn PDF document text
    • https://nilumasukezag.weebly.com/uploads/1/3/4/4/134401113/1531847.pdfIn PDF document text
    • https://cdn.sqhk.co/xafileme/TEP4gi3/thermomix_frozen_banana_chocolate_ice_cream.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d45b401-8752-4a09-bf55-44168e69fdd0/star_wars_kotor_apk_androidoyun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c81724b-3b87-4cbd-8d98-e8778d406e4d/dijerivojowikikema.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/acog_guidelines_hypoxic_ischemic_encephalopathy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/367e270c-ce2b-434d-8114-dd61a8046c0c/better_homes_and_gardens_sheets_king.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_off0000e12f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12F 4976 bytes
SHA-256: 9d7175388dff06f2031dc153843317eb8a2e8e1bc00cfb1b99e587c5a52cead3
font_01_sfnt_off0000f22d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22D 10356 bytes
SHA-256: bbca2ab7705250c1050af78f5a2472809b98d3ec469e5a79d3d9953e5afcdba0