Malicious PDF — malware analysis report

Static analysis result for SHA-256 1244d2d2d69f08a1…

MALICIOUS

PDF

72.6 KB Created: 2021-03-10 15:41:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b0c6d8b7c891f7502fd4abcee679c745 SHA-1: df3eaa7d0210554607b1e0e00e79e030405ff38c SHA-256: 1244d2d2d69f08a192f47418cba1e1e68bd2abb636f25abe31f50f267ab25c9f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/wix?keyword=kenneth+shepsle+analyzing+politics+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388157/normal_5fd99aa7ce4de.pdfIn PDF document text
    • https://wezawemexa.weebly.com/uploads/1/3/1/4/131410399/wefaxetusubuj-lededafumo-genejobedison.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408330/normal_601223e1c039e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418167/normal_6041aadd7bb0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496372/normal_6033d5f6ed6ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456372/normal_6017135c34f18.pdfIn PDF document text
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/2199935.pdfIn PDF document text
    • https://xadigepuve.weebly.com/uploads/1/3/1/4/131454317/xosix.pdfIn PDF document text
    • http://bazorapugaji.iblogger.org/couper_fichier_plusieurs_pages.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ee8818a-d48a-4773-88da-cde6d4eed570/dingleberry_meaning_in_malayalam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/241ef966-aaf9-4f82-88c2-2a0c939933ec/78752652671.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6472b554-aa5a-463d-8367-bf97e34aed1b/joripe.pdfIn PDF document text
    • http://xupazegizijaniw.rf.gd/penjumlahan_bilangan_biner.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1d3f6ac-abc1-4277-a929-564cc0a6d21a/kozuvufebej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27470638-ebae-4a7d-a13d-b74b14a7eaa4/68320695032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6e111f9-139c-4d4c-8387-cb17d300efb6/are_flashcards_effective_for_toddlers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b428f3f2-5497-4c81-9006-55fbb65064f8/22923632139.pdfIn PDF document text
    • http://nezopodadas.epizy.com/vizio_5.1-channel_bluetooth_soundbar_with_wireless_subwoofer_and_satellite_speakers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac7ef0a4-bc73-4888-a5ef-8de25cee52c7/kindle_voyage_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c321b306-f6c4-4997-b1f2-a207cbfc58af/google_maps_timeline_not_working_2021.pdfIn PDF document text
    • http://mafasegu.epizy.com/3123795470.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d4caa32-96cf-4747-99fd-a3615814104b/tuxadafibisesumafu.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_off0000dea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA2 5440 bytes
SHA-256: 6ac88ea978983c03f8f7ed00ce7ee32d06ad40f9af4a366e708d146b8964683c
font_01_sfnt_off0000f143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF143 10540 bytes
SHA-256: 042e032caee183c747563fe728696805d99c23a641acaa17cae940376e4b9d26

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