Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb208421c730140b…

MALICIOUS

PDF

87.8 KB Created: 2021-03-02 04:05:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca5d3082fbd1e2271f7bc98f3ed47b91 SHA-1: 10bebe44d3249ae6dcff60a210e743d1a7c6f399 SHA-256: fb208421c730140b27b167bc65e5f3d1a09614e2afe7df9d29078211262294ea
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, indicating a high likelihood of malicious intent. The embedded URL and numerous other URLs suggest the document is designed to redirect users to external sites, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains a search query, which is a common lure tactic.

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://nipisod.ru/strik?utm_term=how+much+are+32+inch+tvs+at+walmart
    • https://cdn-cms.f-static.net/uploads/4417405/normal_603c4a5cc6963.pdf
    • http://affilateapp.online/what_does_a_trustee_do_on_a_boardda1ct.pdf
    • http://duxolaw.22web.org/maths_worksheet_for_class_2_download.pdf
    • http://trokot-roznica.xyz/xokofifabpi6i4.pdf
    • https://cdn.sqhk.co/noretokujazo/hghhoa1/migowefagokafawe.pdf
    • https://cdn.sqhk.co/duzoxibuf/fgjhije/98159036905.pdf
    • https://static.s123-cdn-static.com/uploads/4457561/normal_5ff67e8b8fb49.pdf
    • https://cdn.sqhk.co/lovojekaboxi/jbgg55Y/infinity_loop_game_level_61.pdf
    • https://cdn.sqhk.co/lewonuvaxu/ojaqibF/47992228678.pdf
    • http://kakasusalulul.iblogger.org/how_to_use_avon_bath_oil.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wuzuvulas.epizy.com/44648058508.pdf
    • https://s3.amazonaws.com/liwara/42476297469.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001037a.bin
f95fce9ad195084b082ab628c61ad368c0d39262c572b991067bc8db780c447d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1037A 5448 bytes
font_01_sfnt_off000115e9.bin
5623b456209634aa088ab67038a455dfb474f02507a37e38f601cedc57f14140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115E9 11728 bytes
font_02_sfnt_off00013dc5.bin
12e1bdea5fc73f205daff8bbc4573b4c6e5ba94205cf5b3440f65e61b625f0f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DC5 16084 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.