Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f70ecd77bd9974e…

MALICIOUS

PDF

87.1 KB Created: 2021-04-05 23:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7d6c3ded0df47226eb0d98bff5a1768e SHA-1: bf1953c389dc50d5ade61a85806479dbef422297 SHA-256: 3f70ecd77bd9974e63e0a5065833a5ed12cd7e8f14cc3163f56b399575dd45b2
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable hosting or link farms, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing sites or download further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/wix?keyword=dichotomous+key+examples+for+candy PDF link annotation
    • http://zekofurul.iblogger.org/55050711313.pdfIn PDF document text
    • https://cdn.sqhk.co/xavipinav/egiidwo/jefavafipofitokivisoweb.pdfIn PDF document text
    • https://cdn.sqhk.co/koditisalupe/jdUTic4/popular_love_songs_of_the_60s_and_70s.pdfIn PDF document text
    • http://mitipuwade.22web.org/xudumopejajiwi.pdfIn PDF document text
    • http://help-mediasupport.com/best_music_rocket_leaguecqifz.pdfIn PDF document text
    • http://alisabor.design/clothes_activity_worksheetk3ntw.pdfIn PDF document text
    • https://cdn.sqhk.co/dabebasavus/XhflLLc/rayman_fiesta_run_android_apk_free_download.pdfIn PDF document text
    • http://wspring.space/46299251985tgqb9.pdfIn PDF document text
    • http://ifeelgood.club/powerpoint_temalar_indir_gezginlerggrfx.pdfIn PDF document text
    • http://selectgetc.top/apc_550_batteryi6czx.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/0zhbnO7/lanawikowasozi.pdfIn PDF document text
    • http://meetcabinets.xyz/209939233085gp4a.pdfIn PDF document text
    • https://cdn.sqhk.co/zamupefa/oVgg1ig/dubigixodobu.pdfIn PDF document text
    • http://gavuzusim.iblogger.org/784726589.pdfIn PDF document text
    • http://goodsfor.life/achyutam_keshavam_krishna_damodaram_lyrics_ringtonetl8vv.pdfIn PDF document text
    • http://leomannapov.com/42378631974hm9z3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xigesema.epizy.com/brady_bmp21_plus_label_printer_starter_kit.pdfIn PDF document text
    • http://telenusu.epizy.com/fitbit_inspire_hr_product_manual.pdfIn PDF document text
    • http://rikulovesemura.rf.gd/33612975176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa5bcba6-a9be-40f9-9d64-3025e82d2868/dir_868l_review.pdfIn PDF document text
    • http://fobiwuna.epizy.com/musclepharm_workout_program.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1da5a72-94d5-4301-b250-dd26172d1e32/90880479640.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4f7a5a0-d9ad-4c00-92ab-f89bf28a09ff/635849335.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86150195-943f-40c9-a3df-f464aa4c4b4c/what_are_the_linux_commands_that_helps_to_find_files.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7A 6440 bytes
SHA-256: a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c
font_01_sfnt_off0000ff6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6E 5628 bytes
SHA-256: 8058fdbec79047dda22f142ac1875dbe79ae0bd8bc8781ff64fc586500631c38
font_02_sfnt_off0001127d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1127D 11300 bytes
SHA-256: 81152bd92afad6ce9479a26a87055fbe8cb7e3ae8c2d3989dfefa1bb25f0c09e
font_03_sfnt_off0001393e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1393E 16168 bytes
SHA-256: bcfecb9fde4b74e4a2b692e15caf305b2988a1cfe4c6386614002e38d35feb86