Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f82aa954bd9adc7…

MALICIOUS

PDF

72.3 KB Created: 2021-01-27 16:39:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 06602d1654919e30f9572e329b0150e5 SHA-1: bd76616eb2e9c7b3f3236aa4bed434e7dc189fe6 SHA-256: 4f82aa954bd9adc7aae53de78e58d24c0a84e0c1cea818825c8d2184e735e477
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many pointing to disposable domains and link farms, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains metadata related to its creation, but no direct textual lure. The presence of multiple external URIs indicates an attempt to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 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/wb?keyword=jacksepticeye%20turbo%20dismount%2022 PDF link annotation
    • https://cdn.sqhk.co/pumibavi/JGhfifm/87484503734.pdfIn PDF document text
    • http://gelchlen.fun/nivabunibuvujarujiwarelod0yzg0.pdfIn PDF document text
    • http://ecoterritory.store/70664833971lrh5.pdfIn PDF document text
    • https://domilejoxu.weebly.com/uploads/1/3/4/5/134529458/9532241.pdfIn PDF document text
    • https://ruzuwigowan.weebly.com/uploads/1/3/1/4/131453288/9642306.pdfIn PDF document text
    • https://cdn.sqhk.co/jilijibimi/geibiaF/ssc_calendar_2020-_21_download.pdfIn PDF document text
    • http://eglo.club/99001222929ajb0v.pdfIn PDF document text
    • http://kanshoper.site/74054462427f53ek.pdfIn PDF document text
    • http://magnitoli-2ekran.site/capitalism_vs_socialism_debateyj4xy.pdfIn PDF document text
    • https://lagizipat.weebly.com/uploads/1/3/2/6/132681030/0f6eec.pdfIn PDF document text
    • http://luminar3-download.xyz/887161728670lpnc.pdfIn PDF document text
    • http://alcexpress1.xyz/37930002684n1fzf.pdfIn PDF document text
    • http://mihetos.xyz/netflix_movies_august_2020_irelandzdhhq.pdfIn PDF document text
    • http://reduslimitalia-official.site/92818946017id4xm.pdfIn PDF document text
    • https://cdn.sqhk.co/nakotuba/igjgkjQ/clash_of_clans_world_championship_bases.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/ZIFA7ik/66615288573.pdfIn PDF document text
    • http://boomua.site/98010739937y35ux.pdfIn PDF document text
    • https://remezovegaz.weebly.com/uploads/1/3/1/4/131406605/3994012.pdfIn PDF document text
    • http://goodnatural.space/karnataka_state_board_science_textbook_class_9tzdi1.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://s3.amazonaws.com/xoxaneral/jisigeg.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/60347864615.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/2_player_chess_no.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/48088460413.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_off0000d126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD126 5496 bytes
SHA-256: ce1c7e2ac6c0fc01d2be743ffcbea0df000d7649e8c866374c06940df21fc9ee
font_01_sfnt_off0000e3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B7 9900 bytes
SHA-256: d5a0ff8720265f43559a1697676c480ac2d9d50a4dec21eaf6ef70d061c2f0fd
font_02_sfnt_off00010596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10596 4324 bytes
SHA-256: 8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd

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