Malicious PDF — malware analysis report

Static analysis result for SHA-256 574c41e96f069c86…

MALICIOUS

PDF

80.4 KB Created: 2021-04-26 22:29:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 0a9d9b7fb44e686d8971dcfe2dad090b SHA-1: 4e459d4635fd8004772f6d600bd141781f7aef00 SHA-256: 574c41e96f069c86769ea6198869ce219f119b09f5ae597ba76b2fe779e43d39
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a link farm on disposable hosting, with a primary external URI pointing to a URL designed to mimic a search result. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were extracted, the embedded URL and the nature of the PDF suggest it's part of a phishing campaign to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://jumiwimov.ru/strik?utm_term=what+is+the+default+bios+password PDF link annotation
    • http://rafale.store/zowafepujme06.pdfIn PDF document text
    • http://yesitalia.fun/emotional_love_failure_whatsapp_statusbmfr1.pdfIn PDF document text
    • http://com-copyrighit.com/95643971167svjk6.pdfIn PDF document text
    • http://verenica.net/online_grammar_quiz_middle_schoolpfcu9.pdfIn PDF document text
    • http://on-arenas.com/8404358399345k7d.pdfIn PDF document text
    • http://7lessons.fun/4040967832riebi.pdfIn PDF document text
    • http://blue-tick-central.com/kinekeknm3x7.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/free_cad_viewer_for_windows.pdfIn PDF document text
    • http://pshcomonhere.xyz/bipavadosso4b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8266f5f5-c706-4d4f-8350-b5278101c18d/compare_the_magnitude_of_centripetal_force_cp_and_centrifugal_forcecf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/456ca271-44c3-4515-b427-8630aebd9a8f/esl_listening_speaking_lesson_plans.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cc1cfba-4897-4e77-ad6a-6bac64da3ca6/shark_garment_steamer_not_working.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71a1522d-9de0-4abd-812a-e1a5b9a06cfe/covid_news_san_diego_california.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df1a5c8a-32ea-4cdf-aee0-6ff903c71bfe/xokokokobubojagovami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce3e537b-13c5-446d-aeae-60fcc26e4214/how_to_start_writing_a_literature_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bf1c835-26b6-439c-96c6-8fe07edf0703/craftsman_lt1500_drive_belt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53d06776-4155-4c20-9e56-14e0e972543f/the_count_of_monte_cristo_free_ebook_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/608da7fd-b0c9-456b-9ba7-82ac14b43bce/vagipewaguketir.pdfIn PDF document text
    • http://mugazukadum.onlinewebshop.net/magezifakezoboj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a30a10ef-59c4-4f0e-9b67-6a93c1013d57/51495410356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29522a04-cd77-4dfe-bd9a-e65dc0ddef0a/80427954414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e17a8b8-f7c6-419a-80fe-2c4eafa6e243/jovogixuled.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb54fe0e-795d-4185-80ee-882ba096d88b/47774956061.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0569d7ee-07ce-4e4d-acc9-56051a94b479/old_dungeon_and_dragons_books.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF010 5152 bytes
SHA-256: 3a03e6c7dca878896e987e3406dd51138709580560b02d33a304564cc5d71d32
font_01_sfnt_off000101b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B3 10692 bytes
SHA-256: 93af483d53bce32bb39c4c30e489d605434b279205608139e7eb1fce66b88dae
font_02_sfnt_off0001261c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1261C 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.