Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1bee47bba579675…

MALICIOUS

PDF

74.3 KB Created: 2021-04-06 04:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: babe69aebd519afc1031c1bd44c3205c SHA-1: 57b3790819cb920894bbaa55846e49ea1cd847e2 SHA-256: d1bee47bba5796756201e85b7a175e7203469e2a31f9668ff134be993a7c9a22
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is malicious and a phishing attempt. It embeds a URL that, when visited, likely leads to further malicious content or downloads. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.

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://maypoin.ru/strik?utm_term=world+war+z+game+multiplayer+split+screen
    • http://matawobedopikam.mywebcommunity.org/26508645771.pdf
    • http://kalukawuwo.mygamesonline.org/feature_article_structure.pdf
    • https://cdn-cms.f-static.net/uploads/4470038/normal_60174abb66d11.pdf
    • http://degimogug.mypressonline.com/baby_bjorn_carrier_newborn_youtube.pdf
    • http://gazupoz.sportsontheweb.net/57541914169.pdf
    • http://tixesikixux.mygamesonline.org/85366005251.pdf
    • https://cdn-cms.f-static.net/uploads/4479222/normal_6023dd6226e0a.pdf
    • https://cdn-cms.f-static.net/uploads/4379626/normal_5fe79c8fcb283.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/dad289ee-8750-457d-a793-35c67b42f328/what_kind_of_pasta_is_in_minestrone_soup.pdf
    • https://uploads.strikinglycdn.com/files/535044bb-239e-49a5-b260-87aea500f757/cloud_practitioner_salary_in_india.pdf
    • https://uploads.strikinglycdn.com/files/46a24aa5-7c89-48c1-97c0-592f30a9d0f6/bexisodazapuzo.pdf
    • https://s3.amazonaws.com/vonutavekip/54721060740.pdf
    • https://uploads.strikinglycdn.com/files/e0b6ef28-9c1d-43d1-a9bf-ef6b4300fc6b/51992585470.pdf
    • https://uploads.strikinglycdn.com/files/8ac46c2a-5547-4c86-aab7-f48dc3e5df1d/sentry_1250_safe_instructions.pdf
    • https://uploads.strikinglycdn.com/files/fc6f558b-376e-48d6-9b97-4afeebf8bdd3/69466113862.pdf
    • https://s3.amazonaws.com/lowuwofuxali/85616152943.pdf
    • https://s3.amazonaws.com/genijusemu/rotuxi.pdf
    • https://s3.amazonaws.com/rujabepifar/7769387972.pdf
    • https://uploads.strikinglycdn.com/files/9977084b-6bd1-445f-ab5c-63f3be23850d/xanexamowenaligofu.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_off0000e278.bin
67aa2b116078475ee7ec9adb3333e9b01064ac058b984b1f9627b8da46a6b3eb
pdf-font-stream PDF embedded font (sfnt) at offset 0xE278 5652 bytes
font_01_sfnt_off0000f5be.bin
19ecdf60aaafc8699f57b35043217a9db4cbe9ee105b0a5f0ac5e500b0d02464
pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BE 10812 bytes