Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f569904c141488…

MALICIOUS

PDF

80.4 KB Created: 2021-02-18 21:43:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 4cb17e5b677e2d83c492c58ad7bef05f SHA-1: 7c8923fa69c731a2eada70cc3c3161872fedf705 SHA-256: 96f569904c141488711d4b60a4b7ef9e9bca01daa37370f3586f579846ba16f8
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, suggesting a phishing or malware distribution attempt. ClamAV and ML classifiers confirm its malicious nature, specifically flagging it as a phishing trojan. The embedded URLs are the primary indicators of compromise, likely leading to malicious content or further infection stages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/strik?utm_term=what+is+the+strongest+magic+in+black+clover PDF link annotation
    • https://cdn.sqhk.co/vuwonesi/Jhbysid/86801665880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491665/normal_600ea45a624bc.pdfIn PDF document text
    • https://cdn.sqhk.co/potiribuwuf/hgqhcic/28288087254.pdfIn PDF document text
    • https://cdn.sqhk.co/jadizefon/hehjgdU/interstellar_soundtrack_piano_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/jcheiej/download_game_android_car_simulator_2_mod_apk.pdfIn PDF document text
    • https://nogexumojadug.weebly.com/uploads/1/3/4/2/134235638/zovofelarorifu_dukibiwusujisa_jurerovupojoxal.pdfIn PDF document text
    • http://panijawukufo.iblogger.org/wopemusapikimujuz.pdfIn PDF document text
    • https://cdn.sqhk.co/takulowizi/gghaPYD/air_attack_ads_game_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xasezujagabef.epizy.com/lularoe_jeans_fit_guide.pdfIn PDF document text
    • http://zopatirek.epizy.com/63142897418.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/antivirus_programme_2019_test_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/3817852566.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/law_dictionary_english_to_tamil.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_off0000fcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFC 5488 bytes
SHA-256: a894611cfff867454eeeda076b0af7454a00a59308ce0a047738c317912693f3
font_01_sfnt_off00010f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F92 10776 bytes
SHA-256: 8e6f5efd87d39c839dd40c8284f6733957d7ec736e90335c4bffbdc6815d893f

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