Malicious PDF — malware analysis report

Static analysis result for SHA-256 8116f34e2bf15509…

MALICIOUS

PDF

74.8 KB Created: 2021-02-06 03:03:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: eb6190cd31de9a5e531f3a1b12d367f3 SHA-1: 3a0d841a6492e598965286983fd24b44ab1d274a SHA-256: 8116f34e2bf15509d442274ce5dd7f244694cc216c3382059315e80db35e863a
126 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
  • 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.
  • 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://baarspo.ru/wb?keyword=any%20video%20player%20%20for%20pc PDF link annotation
    • https://cdn.sqhk.co/wifavizen/gghdBhc/charlie_chaplin_the_great_dictator_speech_with_subtitles.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/gjbhdig/personajes_de_la_novela_teresa_nombres.pdfIn PDF document text
    • https://cdn.sqhk.co/putizimetiwe/dyX7pDD/air_control_heating_and_air_conditioning.pdfIn PDF document text
    • https://cdn.sqhk.co/lunilageruvu/gcgij4t/healthy_food_shopping_list_for_diabetics.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/475888429567hmsz.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/jhAjhjb/free_cross_stitch_pattern_making_software_download.pdfIn PDF document text
    • http://janurikemodowu.iblogger.org/94990977922.pdfIn PDF document text
    • http://car-test.pro/rixokezevex2lwto.pdfIn PDF document text
    • http://zuvels.xyz/rubuxuzuputukokibevamikpwia0.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/bqb0mjc/29330944334.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/viaggJb/roar_music_player_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sufumawug.epizy.com/warrior_protection_leveling_guide_3._3._5.pdfIn PDF document text
    • http://nomosirusuborif.epizy.com/fenikasutuxu.pdfIn PDF document text
    • http://bamasagure.epizy.com/pijixitodisoki.pdfIn PDF document text
    • http://zefinut.rf.gd/63008316078.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_off0000e95a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95A 5120 bytes
SHA-256: cb31aa69f37e7f130d6a878407d4db76846e8acfba4a1c2a2728d05e051b8168
font_01_sfnt_off0000faed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAED 10472 bytes
SHA-256: def43440ec52c6ec8499a45e63b11d07ea6d2e5b78558756c8e6cbd4988ff7b9