Malicious PDF — malware analysis report

Static analysis result for SHA-256 013a1420ca9c7680…

MALICIOUS

PDF

72.9 KB Created: 2021-02-27 22:49:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 614c464fd1bda4c812bb68e8f02a2371 SHA-1: 5a0421e387212a55eb9ea57686c5b99102d6a2fd SHA-256: 013a1420ca9c76805dbd863a3e13b6b45aefa791c81c7d3d39702b012b28bd49
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://xezojetit.ru/award?keyword=how+to+start+jiu+jitsu+reddit PDF link annotation
    • https://cdn.sqhk.co/sadetujadufi/zjgAagd/minimizer_for_youtube_background_music_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417208/normal_5ff328df1427d.pdfIn PDF document text
    • http://julivojurukumu.sportsontheweb.net/what_is_scientific_management_theory.pdfIn PDF document text
    • https://cdn.sqhk.co/zafupusapun/ThcgfJq/component_pinout_pro_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370052/normal_5fd9691e8e094.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/will_no_game_no_life_ever_get_a_season_2.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/storyboard_pro_free_trial.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420434/normal_60394714ca922.pdfIn PDF document text
    • http://kutatit.getenjoyment.net/degolorumakepikudajateri.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/iiahaje/58331872326.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493905/normal_5feb7d918c4f7.pdfIn PDF document text
    • https://cdn.sqhk.co/bumogebiz/O2jiXgd/blue_bottle_coffee_nyc_brooklyn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/arris_xb6_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/2102925061.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_off0000e2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BC 4916 bytes
SHA-256: 740c028889e5a019163ca57b3dd6b21d3cb548bd1a23a7d4af9103a4036e49cd
font_01_sfnt_off0000f38f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF38F 10144 bytes
SHA-256: ced88fff01508609e8d86f04f2587922ea8f1985ae2c29e87fefa1529c3b3613