Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e021444b8315c6a…

MALICIOUS

PDF

76.7 KB Created: 2021-03-23 01:54:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5594bb4fabceee45dd7b9ac4b1e5c169 SHA-1: 1197a565a75c712b3fda7a4b21a8c98b3479a1b2 SHA-256: 9e021444b8315c6afafecbb8fe3b9247ca05c5e578201b244d138b7d0b7dbc9b
156 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://pelibifir.ru/wix?keyword=miele+incognito+dishwasher+installation+manual PDF link annotation
    • http://womenita.fun/quadra_fire_4300_wood_stove_bloweropmap.pdfIn PDF document text
    • https://bagawilikazukir.weebly.com/uploads/1/3/1/0/131070307/a4f83d5a.pdfIn PDF document text
    • https://cdn.sqhk.co/runetonorox/jaFjjvr/20005410882.pdfIn PDF document text
    • https://cdn.sqhk.co/metevetufi/eieifoZ/my_business_venture_products.pdfIn PDF document text
    • https://cdn.sqhk.co/zuzememub/gjgMKT5/38203121034.pdfIn PDF document text
    • https://somizinizerolu.weebly.com/uploads/1/3/0/8/130873918/2628636.pdfIn PDF document text
    • https://cdn.sqhk.co/tofigidukug/dGKhdQO/cashman_casino_vegas_slot_machines_2m_free.pdfIn PDF document text
    • http://busibear.com/47449494963i7svy.pdfIn PDF document text
    • https://cdn.sqhk.co/wemavutulow/dgfiaSM/bethusile_mcinga_new_album_2018_free.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/PibLjcP/clothes_worksheets_clipart.pdfIn PDF document text
    • https://cdn.sqhk.co/nojebimit/Bha14gf/bolarezedinorigalesokoj.pdfIn PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/3e0c7499.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/gidibesuxi/76609558684.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/xejemomewul.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/35490184653.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/revidoterineloxugurojimov.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/fagusorugirefiridifutidud.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/washington_state_unemployment_number.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/jupewonoroputisoduzupoz.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/91277126036.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/zusonerakaba.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_off0000efd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD7 5452 bytes
SHA-256: 000994ec4fa1128d92c4f8c4aa30b4336d22d6dac56448b3f6d479f387ff734a
font_01_sfnt_off00010252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10252 10148 bytes
SHA-256: be9fdf694f186befbf43e9a9eaa5d3b44c4ee59fe0385587e8d5838e630964cd

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