Malicious PDF — malware analysis report

Static analysis result for SHA-256 db46702a30b71efe…

MALICIOUS

PDF

72.3 KB Created: 2021-02-24 08:05:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bb0504f76a7488c605bfaaaac9afc8df SHA-1: b7870456b53df5503e3ea9a9c15fcb4e04cc2946 SHA-256: db46702a30b71efe7fa50fc8276cce1456025c93c19c672fbdbd320d1f54a342
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://bologen.ru/wb?keyword=maplestory%20sub%20weapon%20cash PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392220/normal_5fdacc863c079.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/dbHhaTA/medewigugolemubenuzesifod.pdfIn PDF document text
    • http://tapabafana.22web.org/e_aadhar_card_without_mobile_otp.pdfIn PDF document text
    • https://cdn.sqhk.co/kevamubeminu/igNACgc/adidas_x_star_wars_ultraboost_19_millennium_falcon.pdfIn PDF document text
    • http://sevazumemozoli.22web.org/orchestra_mangelepa_music_s.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/jhiGyhe/xobisunenodevada.pdfIn PDF document text
    • https://cdn.sqhk.co/wolitobutak/hiohhjg/street_kungfu_king_fighter_apkpure.pdfIn PDF document text
    • https://kakowafalajoji.weebly.com/uploads/1/3/4/4/134455686/1bc090.pdfIn PDF document text
    • https://cdn.sqhk.co/jurufovowufu/dicxMjg/jubilalore.pdfIn PDF document text
    • https://vusutiti.weebly.com/uploads/1/3/4/7/134762674/viver.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367277/normal_5fd0e588ed847.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423136/normal_6023d746f14be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_602a5b0f85885.pdfIn PDF document text
    • https://gufubavofunopi.weebly.com/uploads/1/3/4/7/134704705/bezifobemirodotules.pdfIn PDF document text
    • https://cdn.sqhk.co/sowodopevew/UgfhfNp/l-_lingo_learn_thailand.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vogidefoxafubis.epizy.com/platform_film_gana_bhejo.pdfIn PDF document text
    • http://sesunofopum.epizy.com/asphalt_8_airborne_soundtrack.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/fumesosud.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_off0000db57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB57 5360 bytes
SHA-256: 575284276903978ab2a318f4681efcd47fe8c4933941714ba0b5a0cd3264f693
font_01_sfnt_off0000eda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA8 11380 bytes
SHA-256: f37b5d7814ab5cfc7ebae8ad73f21c5f7eb635cf5fc13554c0d281a0a8eed771