Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1bba2cfcb3cc2a6…

MALICIOUS

PDF

88.3 KB Created: 2021-06-01 09:20:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9db5b6810695b27963df7d0d2a31c300 SHA-1: 2cede32f9511f952cf788041dc21a540dea02ac6 SHA-256: b1bba2cfcb3cc2a6c7cabb46f0c5542d003ca128955f371700a3df5de23edfa1
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are part of a link farm designed to direct users to other potentially malicious documents. The primary URL suggests a lure related to downloading media, which is a common tactic for phishing or malware distribution. While no scripts were directly extracted, the PDF structure and heuristic firings indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pixomot.ru/pbw?utm_term=download+naruto+shippuden+mega+mp4
    • https://dofenerezi.weebly.com/uploads/1/3/4/4/134446603/7673875.pdf
    • https://bawimadesudife.weebly.com/uploads/1/3/4/3/134363746/9e1785f.pdf
    • https://batusapetedovug.weebly.com/uploads/1/3/0/8/130873971/2cba1b8ee58ecb.pdf
    • https://pumelagu.weebly.com/uploads/1/3/2/8/132814433/8982184.pdf
    • https://dozelajol.weebly.com/uploads/1/3/7/5/137503252/mejatabix-nejem-xuvijejazu.pdf
    • https://mojoranazo.weebly.com/uploads/1/3/4/4/134403481/kejasu.pdf
    • https://rojusonevupa.weebly.com/uploads/1/3/0/8/130814232/34e648dc148ec8a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/04326d99-6a14-4679-b276-cd71f3c2e498/how_to_fix_broken_tablet_charger_port.pdf
    • http://degenazi.pbworks.com/f/dujemodoranebotowajet.pdf
    • https://uploads.strikinglycdn.com/files/c99fa2e6-d34b-4633-8bcc-01cd41d407ca/al_otro_lado_del_muro_capitulo_26_completo_dailymotion.pdf
    • https://uploads.strikinglycdn.com/files/19a9fdbb-cd3f-44fe-ab6d-aea9bf6a4ec6/reading_comprehension_questions_for_chapter_books.pdf
    • https://uploads.strikinglycdn.com/files/763d57cc-df01-448f-8c21-1c704ededc76/11631169757.pdf
    • https://uploads.strikinglycdn.com/files/5fa81179-eab7-42f9-881e-6e14ab902112/dream_interpretation_spiders_in_my_bed.pdf
    • https://uploads.strikinglycdn.com/files/13e7adc4-a9ea-463d-9076-6f7f26647bb7/3786057556.pdf
    • https://uploads.strikinglycdn.com/files/21437e24-50bc-4924-9501-c7c9d0bde987/what_ios_is_ipod_touch_5th_gen.pdf
    • https://uploads.strikinglycdn.com/files/4d67894b-9196-4826-b67f-9277e7ed880a/toshiba_satellite_l755_drivers_free_download.pdf
    • https://uploads.strikinglycdn.com/files/45884578-7410-46c8-bc56-b45398ec37cf/toto_sw203401_elongated_c100_washlet_installation.pdf
    • http://wamotarirup.pbworks.com/f/gogimefukufaxog.pdf
    • https://uploads.strikinglycdn.com/files/25c5eb75-847a-4d25-9702-d70ee173bbb2/how_much_is_a_private_investigator_license_in_michigan.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee13.bin
3f1bb0dc3674b337601d8f5660e2ff3b1ee9deffa827078f71de3956ba06d9d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE13 4716 bytes
font_01_sfnt_off0000fe73.bin
b452fb7097994c63c87550e674065640fa2c8858bbcf2a482e60c5bf620a1fe0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE73 5552 bytes
font_02_sfnt_off00011148.bin
d5056d664b06e22d1f0bbcd573e3c00b0627bbc57d42035d9880e72a37495e62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11148 14000 bytes
font_03_sfnt_off00013c3e.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C3E 16204 bytes

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