Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d433f70494b9914…

MALICIOUS

PDF

69.3 KB Created: 2021-03-29 13:16:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0a98915169260ef0ad99792403ac546b SHA-1: 516bc60de9114fec560636e8e090d07c0ef75409 SHA-256: 2d433f70494b99145a90e6b43d18e3a3ec640516031b22b3cf5e42fbd6f98cdc
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 0.9993

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 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://crophysi.ru/123?utm_term=audible+pronunciation+guide PDF link annotation
    • http://kotudekudoges.getenjoyment.net/sewuwipavujinegoxeta.pdfIn PDF document text
    • https://cdn.sqhk.co/suwapipejob/hhjp9QW/bride_personalized_wedding_dress_hanger.pdfIn PDF document text
    • http://negodebozebe.iblogger.org/futawijutonutogitebana.pdfIn PDF document text
    • http://setafugeridol.scienceontheweb.net/soxawenu.pdfIn PDF document text
    • https://cdn.sqhk.co/lezubenewago/vjdgcji/great_little_war_game_2_apk_full_mod.pdfIn PDF document text
    • http://duzusedolatepe.mypressonline.com/dunaguforurotumolobepumu.pdfIn PDF document text
    • https://cdn.sqhk.co/wogigixa/gcjc6WR/11683860719.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/mipizaju/dust_in_the_wind_fingerstyle_sungha_jung.pdfIn PDF document text
    • https://054d5c26-596f-48a3-87a7-0fc79031e5db.filesusr.com/ugd/599026_c1c01f33b0334f93964f0f6db7d27f51.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/325818307.pdfIn PDF document text
    • http://rabuwupitakif.rf.gd/yoshi_island_map_theme_sheet_music.pdfIn PDF document text
    • https://c1d61d78-9bae-425c-b347-ee91470fe4f1.filesusr.com/ugd/60933b_fd26f4b7cec7477e9f70e43a599e30be.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/west_bend_bread_maker_41026_instruction_manual.pdfIn PDF document text
    • http://zipemoluligera.myartsonline.com/tosejadanavemevebonaxox.pdfIn PDF document text
    • https://bcbc83ff-a82b-4234-bf1d-c69e8cae54d5.filesusr.com/ugd/057c82_5eb04578217c4d918f83f89a3a95ddaf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/89860694793.pdfIn PDF document text
    • https://be56f97b-0727-4a8e-a141-4155b83e75ac.filesusr.com/ugd/5034d0_977aa7529c5a4cb6bbee7ec93ff09cdf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vokeri/adpi_ucf_report.pdfIn PDF document text
    • http://vedezanopade.epizy.com/acta_constitutiva_y_de_reformas_de_1847.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/ashton_irwin_gf_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/least_common_multiple_of_rational_expressions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/free_chrome_latest_version.pdfIn PDF document text
    • https://6552665f-f3ce-4070-9f47-7b493df4570a.filesusr.com/ugd/3d88c7_e5fc6c78f67b45d0ae56b0c853fcd0ec.pdf?index=trueIn 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_off0000d1eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1EB 5192 bytes
SHA-256: 49099bad810b2ceec647f19331215bf160394ed07a904f8fbf153ea21c119044
font_01_sfnt_off0000e39e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39E 10764 bytes
SHA-256: 296c1ff18d139365abd6931782c4cf0abf0c580b9ac2a800cda390fb129dac34

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