Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d44250b8ff25bf…

MALICIOUS

PDF

70.3 KB Created: 2021-02-16 00:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 63940c31a178b2eb54a1911df043d81f SHA-1: f356d59f59b4ca11d8df5f02626230f10fbda8af SHA-256: 06d44250b8ff25bf000dced033e224538a0732318b0d02ae951f2dec5a56d701
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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/wix?keyword=you%2527re+beautiful+christina+aguilera+lyrics PDF link annotation
    • https://fiwuvoreguno.weebly.com/uploads/1/3/4/0/134000104/jiruvijilolepuja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389601/normal_6029540a4b018.pdfIn PDF document text
    • http://thechambre.xyz/free_printable_may_2018_calendar_templatehw4ul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392647/normal_5fd658618f8b1.pdfIn PDF document text
    • https://fakipaga.weebly.com/uploads/1/3/1/1/131163599/3896231.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471488/normal_60109057c0603.pdfIn PDF document text
    • https://cdn.sqhk.co/bajafigotuvi/X6u57hc/flight_world_war_ii_2015.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/egcphhP/folufoketamiliku.pdfIn PDF document text
    • https://dopatojibeforu.weebly.com/uploads/1/3/0/9/130969701/detege.pdfIn PDF document text
    • https://cdn.sqhk.co/tunuviju/ha4v4ie/first_strike_t15_pdw_stock.pdfIn PDF document text
    • https://foxesomi.weebly.com/uploads/1/3/0/7/130775893/7384435.pdfIn PDF document text
    • https://cdn.sqhk.co/jekunesoru/dV8Rvje/digi_online_payment_hong_leong.pdfIn PDF document text
    • https://cdn.sqhk.co/tefaxobaf/jihjYOY/escape_game_hard_time_3.pdfIn PDF document text
    • http://buyervannakupitvsem.xyz/166036278818kl1n.pdfIn PDF document text
    • https://zevebijupaxize.weebly.com/uploads/1/3/4/7/134754497/9080201.pdfIn PDF document text
    • https://sitoluvumoroge.weebly.com/uploads/1/3/4/7/134762666/2182184.pdfIn PDF document text
    • https://ketumumev.weebly.com/uploads/1/3/5/3/135348104/494399.pdfIn PDF document text
    • https://dabelebixoxo.weebly.com/uploads/1/3/5/3/135310161/2745476.pdfIn PDF document text
    • https://cdn.sqhk.co/moromasi/BzjaNYK/bucket_list_family_no_longer_mormon.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/BulgdgS/defense_career_institute.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD573 5380 bytes
SHA-256: 582133c896570bdda51ac630eb7cf5ee06507669746bfcae31d65a92c27effd6
font_01_sfnt_off0000e7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CD 10592 bytes
SHA-256: d5a03364fc725dcf08edd5701769406a19f47fa51c3b1e43d425530e3bb48423