Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4bc22954ffdea7…

MALICIOUS

PDF

72.9 KB Created: 2021-02-12 22:14:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d1ef260b7c8acc02ebfba6b132b0a97 SHA-1: 5b63e0dc87e832ab328903c03c6b2fd2a450618b SHA-256: 2f4bc22954ffdea7c4f9adb1dc5860df8084bb006ddf6a78db08876da9dcf50d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=reviews%20of%20garnet%20hill%20sheets PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417806/normal_5fcc1612992d0.pdfIn PDF document text
    • http://christinaanddavid2019.com/truck_racing_game_free_downloadtiydo.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/iaJ0JDS/digestive_enzymes_benefits.pdfIn PDF document text
    • https://ziriponu.weebly.com/uploads/1/3/2/6/132696112/3b0b47f055b.pdfIn PDF document text
    • https://dawejiji.weebly.com/uploads/1/3/4/5/134505451/bofubed.pdfIn PDF document text
    • https://cdn.sqhk.co/sewetotab/idgjxjh/40889667353.pdfIn PDF document text
    • https://bapixive.weebly.com/uploads/1/3/4/3/134393773/lowod-moxuwov-xumizoxomomaf-monobazid.pdfIn PDF document text
    • https://sasominafa.weebly.com/uploads/1/3/4/3/134362810/nomapifufipov_zabivaxejaze_bepipafenag.pdfIn PDF document text
    • http://civiliscmq.online/387854596884dpsn.pdfIn PDF document text
    • http://bachanalytics.com/weapon_sounds_fivemoq2wf.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/bijZNji/rise_of_generals_apk.pdfIn PDF document text
    • https://mopirolelawa.weebly.com/uploads/1/3/4/0/134012876/gerulamowisivi.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/dekogamik/baaghi_2_film_hd_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/landlord_abandonment_notice_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/tamil_bass_boosted_songs_2018.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_off0000dfb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB5 5188 bytes
SHA-256: f83fef75176b6ac822ed1adfa451116444743dc06118d11a4b53e15a380d464f
font_01_sfnt_off0000f175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF175 10980 bytes
SHA-256: b53a615cd6b59985f7f651ef33159f36158a1634c14221e9b057e0db35f20660