Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a8d902920708b88…

MALICIOUS

PDF

74.2 KB Created: 2021-01-20 06:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: a4a3e87c14f3833e8145705c693823ac SHA-1: b1aa8ce8c8ed0042658b2133e413fc5e393e87d8 SHA-256: 1a8d902920708b883473954dc9bb74e36a1b01b3bfe300a39101a80cd550dff8
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/shook?utm_term=oxygen+sensor+car+won%2527+t+start In PDF document text
    • https://cdn.sqhk.co/zovitamojim/Rigv1hd/iron_maiden_beer_bottle_opener.pdfIn PDF document text
    • https://site-1168290.mozfiles.com/files/1168290/8112610865.pdfIn PDF document text
    • https://site-1173584.mozfiles.com/files/1173584/biguzakukuzematirano.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/ighbVX5/sasobavo.pdfIn PDF document text
    • https://site-1246163.mozfiles.com/files/1246163/50810569599.pdfIn PDF document text
    • https://site-1175108.mozfiles.com/files/1175108/spinner_io_mod_apk_unlimited_money.pdfIn PDF document text
    • https://site-1172650.mozfiles.com/files/1172650/film_suddenly_it_s_magic_sub_indonesia.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxobenona/jja5D34/eclipse_edge_of_light_switch_review.pdfIn PDF document text
    • https://site-1172418.mozfiles.com/files/1172418/best_mini_games_for_pc_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dawolesirip/Cogf3KO/dekagudujipolonar.pdfIn PDF document text
    • https://site-1168429.mozfiles.com/files/1168429/bazabirabonigofig.pdfIn PDF document text
    • https://site-1179780.mozfiles.com/files/1179780/19801343962.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/1xbdPij/iron_chests_mod_para_minecraft_1._16._1.pdfIn PDF document text
    • https://cdn.sqhk.co/leburogutu/TySESKt/55412164355.pdfIn PDF document text
    • https://site-1185553.mozfiles.com/files/1185553/67033067590.pdfIn PDF document text
    • https://site-1166620.mozfiles.com/files/1166620/243779866.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://naxokagad.epizy.com/jakezoxugodef.pdfIn PDF document text
    • http://redusaboj.epizy.com/37548853702.pdfIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A2 5256 bytes
SHA-256: 2662f87e69ae902f7fd0f4bf8779e738b165086e02924a3141e801a076c948aa
font_01_sfnt_off0000f7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BE 10428 bytes
SHA-256: 3809c95e1291f6b384678b4055d01c45828da6a512d38552638b1d8e0ea7bfcc

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