Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e427b6b2ac68d7…

MALICIOUS

PDF

71.0 KB Created: 2021-03-17 02:25:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea530c7788f119ba6a032d1b753c048e SHA-1: 4e7af6ac2c2d8cc9ee3b21ddc8eac8aeb137082e SHA-256: c0e427b6b2ac68d7176f512ac1b46df0719b4c96781a84226b2bde2a27ac121c
96 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is associated with a known malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'appliance repair manuals' to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/wix?keyword=appliance+repair+manuals
    • https://cdn.sqhk.co/guwuweri/Mgi5ja7/highest_mastery_weapon_warframe.pdf
    • https://cdn.sqhk.co/jotapepikota/hbhhjhE/credit_hawk_phone_number.pdf
    • https://cdn.sqhk.co/mifigatira/a02Zien/bewetunetazisadefururuvut.pdf
    • https://cdn.sqhk.co/kirovuwuvo/ChjCjfz/meme_soundboard_2016_to_2020_android_apk.pdf
    • https://cdn.sqhk.co/verexoleki/VjjsifJ/84996526554.pdf
    • https://cdn.sqhk.co/nuvurero/jVibibr/58144091879.pdf
    • https://cdn.sqhk.co/fujikapoji/V3pHegj/91090912890.pdf
    • http://wigageturuv.mywebcommunity.org/alice_in_wonderland_read_online.pdf
    • http://fozujam.iblogger.org/what_do_you_call_a_chinese_warrior.pdf
    • https://cdn.sqhk.co/rokunufoleti/aWhiFjg/google_pixel_2_xl_android_9_root.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b9931501-cb93-4e05-9a5b-ea6a2a5839fa/the_ransom_of_red_chief_summary_characters.pdf
    • https://uploads.strikinglycdn.com/files/9d59ac08-9bdf-4a1d-85d1-839f88303e9e/tedejoxur.pdf
    • http://vexabimumemig.atwebpages.com/tratamiento_balanitis_candidisica.pdf
    • http://safovowujo.rf.gd/ejemplos_de_funciones_logicas_en_excel_2016.pdf
    • https://uploads.strikinglycdn.com/files/30e530c7-850e-4e62-997a-139c02ff7bba/35017087484.pdf
    • https://uploads.strikinglycdn.com/files/a5b6a78d-bd0e-4ffd-b058-431ccc7ca24e/71021570179.pdf
    • http://xiwozoget.atwebpages.com/atonia_uterina_tratamento.pdf
    • https://s3.amazonaws.com/dewazewokib/84026747197.pdf
    • http://vudatuvabejosix.epizy.com/millennial_meme.pdf
    • https://s3.amazonaws.com/padanivozeb/ibps_guide_reasoning_practice_set.pdf
    • https://uploads.strikinglycdn.com/files/195250a2-b8b3-48d0-a0f8-4623de971e1b/towuvamaxedopedowarom.pdf
    • http://vipaviveza.epizy.com/mivokenasufabo.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_off0000d7d4.bin
d486bc0306b52df4ade10d7717ca75cadbd2706187d7561bb7d936df9153e005
pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D4 5068 bytes
font_01_sfnt_off0000e8f7.bin
af073097148233fb7d5e41a9368e827e1412b2892f6687848b6a1e3c12bd4c6f
pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F7 10884 bytes