Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2bd09e953d7be1e…

MALICIOUS

PDF

73.3 KB Created: 2021-03-14 22:24:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf98f0f81cf5db1653128c9b5ef4a38f SHA-1: 5b50c3f917cdfebc80a771769eb2bb4d770792e8 SHA-256: d2bd09e953d7be1ee5b2d64bd5e0d67f2a061223d5180a9b2852b8b62a2410ff
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'resalured.ru', which is likely intended to host malicious content or redirect the user to a phishing site. The document body, though heavily obfuscated, contains keywords related to software downloads, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://resalured.ru/wix?keyword=moviebox+hd+apk+2018
    • http://podeves.xyz/avery_cd_label_templatesp9lok.pdf
    • http://zugobopepoj.sportsontheweb.net/confidence_power_plus_treadmill_pink.pdf
    • http://xplaintome.ru/cartoon_animation_software_free_for_pcadeo0.pdf
    • http://dkblogin-de.best/fawatamajiratedojoti8kgdu.pdf
    • http://like-store.site/rinnai_infinity_26_price_installed_brisbaneg2117.pdf
    • https://cdn.sqhk.co/fesakesovoka/MhcsicT/italia_vr_virtual_reality_app_download.pdf
    • https://cdn.sqhk.co/kutajanode/iidicFQ/top_10_music_2020_list.pdf
    • https://cdn.sqhk.co/zifixanuk/jbnxlia/gun_strike_shoot_fire_mod_apk.pdf
    • https://cdn.sqhk.co/waladoved/zggfHgh/antihero_movies_imdb.pdf
    • http://xenalebosob.scienceontheweb.net/divergent_book_chapter_26.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xakapudakadu/henry_rollins_get_in_the_van_ebook.pdf
    • https://uploads.strikinglycdn.com/files/dd32b8fb-807c-4c1d-a419-ed7421f5a76a/bisoxupagotowototawelolig.pdf
    • https://uploads.strikinglycdn.com/files/d4d7ebf4-966f-48c3-9641-5f6394fdf4fc/65337658508.pdf
    • https://s3.amazonaws.com/gozifep/teatv_apk_for_windows.pdf
    • http://xekivis.rf.gd/nlt_illustrated_study_bible.pdf
    • https://uploads.strikinglycdn.com/files/d0feddd6-fd55-462e-a783-0090dda2bc9d/tujigavowezajefoxegewaniz.pdf
    • http://walefusariwe.epizy.com/healthy_food_guide_chocolate_caramel_slice.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_off0000dff7.bin
c69719d3c5a2f85bf413453e5e9dfebefddec10a4e9110f1c79f16ff8481c575
pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF7 5600 bytes
font_01_sfnt_off0000f315.bin
4f2cf2929e9c5a6a7c0566ece0514d8534facfbbc676bf7f2baa01e1704bc943
pdf-font-stream PDF embedded font (sfnt) at offset 0xF315 10856 bytes