Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b1904bac571414…

MALICIOUS

PDF

69.2 KB Created: 2021-02-10 19:24:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0499aa0b8162efcdb583e3a72ff3ae7c SHA-1: 05adb987935f33349d245d0abeec46737cca9d38 SHA-256: 30b1904bac571414042001656b38f856d6dcd140819bc799057cf5ad4d6ca26a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL and numerous other URLs suggest the document is designed to redirect users to potentially harmful content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt, likely leveraging a PDF exploit or social engineering.

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://leonvi.ru/wb?keyword=kaabil%20movie%20%20in%20tamil%20720p PDF link annotation
    • https://cdn.sqhk.co/gutemokerezo/jjjhIAH/jump_stack_pointer.pdfIn PDF document text
    • https://cdn.sqhk.co/jakovenuz/THjiibz/paintball_guns_from_community.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_6023f8b62d84f.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/iijhagf/golf_battle_online_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/iajgigV/stick_fight_shadow_warrior_mod_apk_1._24.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikureta/iH9aMX5/panda_run_hack_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366639/normal_5fe2f8778d30a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464539/normal_601ccfd3e98a3.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/heJRCa0/lobuvidunewufedawipa.pdfIn PDF document text
    • https://cdn.sqhk.co/xamozafi/vgjiVbS/blackbird_fly_song_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/fenajobuwer/heUKRia/85798105799.pdfIn PDF document text
    • http://rubeatyshop.xyz/tuvumuxuwupotipuwsrmvb.pdfIn PDF document text
    • https://cdn.sqhk.co/sononipo/gfyjihf/heart_emoji_white_background.pdfIn PDF document text
    • https://cdn.sqhk.co/salifera/FeYicij/tafojifogijibogokufurik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD46 5212 bytes
SHA-256: 9a086ad748885a07df171cabd91d770ca41f2782448cf33c7c71cdaaf3b83be0
font_01_sfnt_off0000cf03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF03 10336 bytes
SHA-256: ba74e82c8e1da8e74f1bde47df3da22b7dd121222ed8afa13dd16a951fc621f0
font_02_sfnt_off0000f2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A6 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8

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