Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb8f51d4936dec2d…

MALICIOUS

PDF

75.2 KB Created: 2021-03-26 06:39:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2913ca367e0d9e672e73efb82a39f430 SHA-1: 5706ed16d0f2c7ff500930175c0f0c9b49e57491 SHA-256: fb8f51d4936dec2dac0cce9ee320f3cea158860664d60086ba99edf68bb51b41
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9997

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://lozipotod.ru/wix?keyword=eve+online+gallente+fitting+guide PDF link annotation
    • https://cdn.sqhk.co/mofekuma/gjijsDy/33002793391.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/GjgfhbV/can_bunny_eat_popcorn.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/Tehcsgj/openttd_signals_on_bridges.pdfIn PDF document text
    • http://lavkavkusa.store/22357151365xh1h2.pdfIn PDF document text
    • https://cdn.sqhk.co/wufotubi/VefhcJT/sims_3_mobile_cheats_android.pdfIn PDF document text
    • http://fsfsfd.xyz/aja_mahi_aaja_song_pagalworld4g5wx.pdfIn PDF document text
    • https://cdn.sqhk.co/kawurefeki/2jjhajh/the_last_stand_l4d2_secret_room.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/95fzics/wumilikosivoxibubeliv.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/9iagh7g/80043577899.pdfIn PDF document text
    • http://fidafevemikiwe.mywebcommunity.org/what_are_antigens.pdfIn PDF document text
    • http://blancer.xyz/android_emulator_free_linuxrl59k.pdfIn PDF document text
    • http://heartcenteredequestrian.com/md_medical_group_investments_plc_annual_reportt3oww.pdfIn PDF document text
    • http://xteenware.online/nevosipurakubupewazimumisgn8nb.pdfIn PDF document text
    • http://movawizaxaxato.mywebcommunity.org/educational_research_quantitative_qualitative_and_mixed_approaches_sixth_edition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaf0346c-f77c-4833-8c16-30c0c27ff659/96050298284.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45914c18-4f0b-4303-8111-0ab6ea616b85/viratesin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/198b8009-d9fc-4386-bca0-362467717eb0/bose_sounddock_10_price_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/acf_pro_wordpress.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/chamar_status_photo.pdfIn PDF document text
    • http://nijarigu.onlinewebshop.net/zejafedun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/556fbd0e-c9ca-4c88-b3a7-8ebdc81c6e9c/honda_eu2200i_parts_manual.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_off0000e952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE952 4820 bytes
SHA-256: a9ce69b76c8d7e4bec8ecba9fc73e58f437c137d3f0193ce88f8918cfd850056
font_01_sfnt_off0000f9dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9DD 10984 bytes
SHA-256: b3559d595a4341efbdbefab3bd66ef1211bcde1858e7d2512432bc09c58e33a8

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