Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d3c436e4795349…

MALICIOUS

PDF

83.1 KB Created: 2021-03-02 10:42:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 495a0f1690d9ce4c23d625505cca84d7 SHA-1: b34f1ea129052edd1d1c73702c683d79113a2a46 SHA-256: c2d3c436e479534936df0f93925711f7e5974f12efdbdc63ef4ca5d7e6d20f10
126 Risk Score

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 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://pelibifir.ru/123?utm_term=how+to+say+te+amo+mi+corazon+in+english PDF link annotation
    • https://cdn.sqhk.co/nujamaweke/UuihLoM/zombie_invasion_monster_trucks.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/g4bjhir/bibafugafeporazu.pdfIn PDF document text
    • http://kelnoteres.xyz/custom_loader_in_android_githubmfv0d.pdfIn PDF document text
    • http://uablog.website/6th_grade_english_worksheets_grammaregj15.pdfIn PDF document text
    • http://filemarker.store/kogepazepusogatofajopodabmee90.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuputid/NThjgfJ/draw_climber_free_arcade_run_games.pdfIn PDF document text
    • http://precabinets.xyz/96198334670mdi8l.pdfIn PDF document text
    • http://dmgameplan.com/52603652471foml3.pdfIn PDF document text
    • http://teachost.com/buddhism_in_vietnamof55h.pdfIn PDF document text
    • http://kokulotasuz.mygamesonline.org/72872360641.pdfIn PDF document text
    • http://nejupike.mygamesonline.org/twilight_breaking_dawn_part_2_cast_names.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tevefetilojas.atwebpages.com/85270235622.pdfIn PDF document text
    • http://rugokabiko.epizy.com/sexow.pdfIn PDF document text
    • http://rojanesifilagu.myartsonline.com/zedufozamara.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A1 5204 bytes
SHA-256: 2c0bdf7d2313a99d05f13fa2c953f0bdf63f6d28616d6edd81940fb749be4d1a
font_01_sfnt_off00010b3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3B 11676 bytes
SHA-256: a08b2062022782260d8b60c9525c94f96faf77e8bd55fed8f429758096ce98a7
font_02_sfnt_off00013109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13109 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71