Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa0de22546cc40c7…

MALICIOUS

PDF

79.6 KB Created: 2021-02-15 13:33:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 093a420fc572210be0d316a7f70705e9 SHA-1: 97d4351a850b719b79c362586d12192814e07f6b SHA-256: aa0de22546cc40c788025650dba97c196c4024b3079139544beb31889d233267
214 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/strik?utm_term=2019+lexus+rx+hybrid+gas+mileage In PDF document text
    • http://neledaxiwogume.iblogger.org/jnc_8_guidelines_definition_of_hypertension.pdfIn PDF document text
    • http://reawont.online/gseb_textbook_std_11_12_commerce2dn3h.pdfIn PDF document text
    • http://bcipreactivaperu.com/fulokedddogw.pdfIn PDF document text
    • https://faripolugariwel.weebly.com/uploads/1/3/1/4/131453512/1831526.pdfIn PDF document text
    • https://lewezuwarekizes.weebly.com/uploads/1/3/4/0/134040914/4614398.pdfIn PDF document text
    • https://bitilidejiv.weebly.com/uploads/1/3/4/4/134442737/1026911.pdfIn PDF document text
    • http://topuniversityru.fun/vutibovuxuz8yua.pdfIn PDF document text
    • https://kaposabebozof.weebly.com/uploads/1/3/4/4/134466843/nituzutugevo_bodukina_muvewi_zefomisilotir.pdfIn PDF document text
    • http://zoosalon.org/660313160901izb6.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/mikibetiv/comic_strip_template_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/us_king_size_bed_sheet_size.pdfIn PDF document text
    • http://xisutep.rf.gd/mimejef.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/compare_fractions_with_unlike_denominators_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/ihk_oldenburg_berichtsheft.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/huawei_app_market_apk_file.pdfIn PDF document text
    • http://pomirunorejuso.epizy.com/emulator_android_ringan_untuk_pc_gratis.pdfIn PDF document text
    • http://lepomosafajuki.rf.gd/auto_pics_blur_editor_apk.pdfIn PDF document text
    • http://posugez.epizy.com/diterojolabu.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/81761275442.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/44241140537.pdfIn PDF document text
    • http://zuronixo.rf.gd/polagakaladeziganowizix.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/catering_management_an_integrated_approach.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/wapking_hd_video_songs_2019.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAF 5936 bytes
SHA-256: bd8c21ba9ddc88845f8bb0248a864253a43a7d5be31217997eab26398da78927
font_01_sfnt_off0000f3bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BD 11832 bytes
SHA-256: 0ebe3955b6c1126146095e4b3fb03b7c67253bd3010905f0c818b4a340a55eb3
font_02_sfnt_off00011c4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C4B 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550

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