Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e9b9cdebd33d245…

MALICIOUS

PDF

89.4 KB Created: 2021-03-21 23:51:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 1ccb22c028cca8f2f476c133b5ad6549 SHA-1: 52fdc6f0d509d74ac3c8901f0492aad581efffc7 SHA-256: 9e9b9cdebd33d2458426bd3d9bd6ebc2fb4093242f021f16dad8c29cc4aa6232
196 Risk Score

Malware Insights

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

The PDF contains a heuristic indicating a link farm and an embedded URI pointing to a suspicious domain, suggesting a phishing or SEO poisoning attack. The presence of a password-protected archive lure heuristic indicates an attempt to bypass gateway scanning. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://dugedepap.ru/award?keyword=seguran%25C3%25A7a+e+auditoria+de+sistemas+de+informa%25C3%25A7%25C3%25A3o+pdf PDF link annotation
    • https://cdn.sqhk.co/xopuxuvop/0fFhihc/kajuseruzofesopibel.pdfIn PDF document text
    • https://cdn.sqhk.co/tabuguran/MHBbhib/songpop_2_guess_the_song_itunes.pdfIn PDF document text
    • https://cdn.sqhk.co/xukerejolar/aihjagh/international_days_list_october_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412379/normal_6023052d62406.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/hjjDsgf/space_marshals_2_hack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/hje21if/puvonolivigagijadug.pdfIn PDF document text
    • https://cdn.sqhk.co/sekigizakeku/jiJ7Qvb/tojeferuboti.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/d0icEhb/resmed_myair_app_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461483/normal_604d821b6a373.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412896/normal_6000170a3e5f0.pdfIn PDF document text
    • https://cdn.sqhk.co/sifujubagis/hfwKgdI/silver_glitter_background_wallpaper.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449998/normal_601841ca53ed2.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/votubukaxogilix/bsss_college_bhopal_admission_form_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/bosutituladolidukuvuf.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/19855154580.pdfIn PDF document text
    • https://5fb42ee6-a9be-400a-98f2-f9d4b9f720c8.filesusr.com/ugd/1813b3_c341908cd5124b15a890f3b426c68f48.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/94658781612.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/27211967820.pdfIn PDF document text
    • https://2903667b-e544-4972-ac7f-e5855aaa9b37.filesusr.com/ugd/2cc660_d4a97081100849a6883025f013b03a34.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/best_cracked_android_games.pdfIn PDF document text
    • https://da99f664-88c7-4a27-98aa-0bbcec2e8f57.filesusr.com/ugd/66f3f9_515cb08376534bcca449e447a131025c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/dead_cells_apk_pc.pdfIn PDF document text
    • https://0d801636-e20c-47cf-9654-f2c4f0d28fb9.filesusr.com/ugd/2e7c9c_1af9a996cadd48daadd92fa89ac07925.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bodajaku/what_channel_is_newsmax_on_spectrum_nyc.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_off0001173d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1173D 5932 bytes
SHA-256: d3c91595ab1ca5f2ebde3a339f708f091286f152736a4c4113b4cecfcb8ae120
font_01_sfnt_off00012ac4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AC4 13832 bytes
SHA-256: ece872b2fbf6a74cee78ed09ebd552997b6dac1720054af0290c64dcbe9c0bb4

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