Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2a9f05485c18c7e…

MALICIOUS

PDF

64.3 KB Created: 2021-02-15 18:12:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7a27fee80d87bc2aa26293602a166e68 SHA-1: dd11139cf6f56940b6368df24a98b6cc78f9c934 SHA-256: f2a9f05485c18c7ec3c06c040744f04935435dd5166fbe96df82d3a4fb97f2a3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/strik?utm_term=what+are+the+trending+songs+right+now PDF link annotation
    • https://tuxufinuzeleki.weebly.com/uploads/1/3/4/7/134737217/jazuxagutopi.pdfIn PDF document text
    • https://rifodajawu.weebly.com/uploads/1/3/0/7/130739776/mokelarip_pudav.pdfIn PDF document text
    • https://cdn.sqhk.co/riwaxagi/Lf35hhf/29226563348.pdfIn PDF document text
    • https://cdn.sqhk.co/kerametunal/e0Tjjie/descargar_hero_tournament_super_stick_saga.pdfIn PDF document text
    • https://cdn.sqhk.co/leperanurosi/gHheifm/51765067331.pdfIn PDF document text
    • https://cdn.sqhk.co/vozeseseber/ft5gjAA/9031607013.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/xodevojunu.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/gheQf9T/offroad_rally_driving_4x4_trucks_suv_trophy.pdfIn PDF document text
    • http://hihikane.space/new_english_song_video_status_download_for_whatsapphhjii.pdfIn PDF document text
    • http://repair-foto.ru/ge_electric_steam_clean_oven_instructionsxk7z4.pdfIn PDF document text
    • http://opit.space/macrumors_apple_buying_guideaqtgs.pdfIn PDF document text
    • https://kejidelevotina.weebly.com/uploads/1/3/5/3/135326148/rupegitevisipixe.pdfIn PDF document text
    • http://betmoy56.com/my_reflection_mulan_piano_sheet_musicxkgg1.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/pesetufavo/aptitude_form_meaning_in_marathi.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/49722133669.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/chuyn_hnh_nh_png_sang.pdfIn PDF document text
    • http://vixugow.epizy.com/cisco_cdp_tool_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/angular_5_tutorialspoint.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_off0000bdec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDEC 5160 bytes
SHA-256: 8f1ba8d16007f9d298b12bc14e7da35bf253c43af6bf71535b411fbc6e179982
font_01_sfnt_off0000cf87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF87 10932 bytes
SHA-256: a2222daccd9b935e3f674aea5eaf2761041895af027b593ed6803b819a0e54ef

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