Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ecaee1ffbffbb1c…

MALICIOUS

PDF

95.3 KB Created: 2021-03-25 09:29:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: d1093aeea0d45e1f093a097d809bc3b0 SHA-1: 59a0d11f7120bfc30f8865a88f715d4ed86ff5a2 SHA-256: 7ecaee1ffbffbb1c7e2083671b345053d42974719a26508f0a36837c5dacc5ca
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a phishing lure, likely intended to redirect users to malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://resalured.ru/wix?keyword=frontline+commando+2+mod+apk+happymod PDF link annotation
    • https://cdn.sqhk.co/mewivupa/G1rhdgi/new_york_tourist_tours.pdfIn PDF document text
    • http://kaboliwup.mypressonline.com/gunujose.pdfIn PDF document text
    • http://cetakchantek.com/grammar_for_ielts_writing_task_2_liz_free_downloadwawz0.pdfIn PDF document text
    • http://tetupamino.mywebcommunity.org/data_analysis_quantitative_research.pdfIn PDF document text
    • https://cdn.sqhk.co/zomujugoke/njluPVT/bengali_old_song_whatsapp_status_video.pdfIn PDF document text
    • http://legendarycraft.ru/jazinuzabosojzzt.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusemob/qCyRcJP/fdic_call_report_glossary.pdfIn PDF document text
    • http://wodedutipif.medianewsonline.com/what_is_a_public_relations_officer_salary_in_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/talokelom/Fghgjpb/94193914958.pdfIn PDF document text
    • http://vevovifox.scienceontheweb.net/what_are_the_different_phone_operating_systems.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/5a545df4-7467-4e96-9296-6b8dda0c9e5e/craftsman_5600_watt_generator_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56ca2917-4526-4885-9f71-646c3cf11c81/25137778535.pdfIn PDF document text
    • http://fanalejowegop.atwebpages.com/fejaguvevizukoku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ac5474c-564f-45bd-ae60-449f73918dc6/how_to_install_windows_7_in_dell_laptop_step_by_step.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c421a23-bedf-4f49-b13a-ea1d81f7166d/machine_learning_books_for_beginners_quora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56117866-7b27-4dc5-ab41-2c689b7687d6/rifagezugox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9a87453-865b-4de2-acaf-cd76c46ccb13/dejame_que_te_cuente_cuenca.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9587b32d-be95-43f1-b12c-3148f376dcc9/84458635558.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d301e51-d09f-4643-ad2a-d8b94e4f1e18/how_to_clean_inverter_direct_drive_washing_machine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deaff4df-f5c1-4640-8ef5-cceea42a6d19/68938381218.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00014c27.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x14C27 20760 bytes
SHA-256: bae85890231414952e4e94ba1a494c8944190e54f644247a0a1a460f6cee1bc5
font_00_sfnt_off0000f6c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C6 2880 bytes
SHA-256: b90b109c34db9b2d961be312c0c64f13ba4f5af9c83d6ae4556a72cb7f468167
font_01_sfnt_off00010104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10104 5388 bytes
SHA-256: d906a326481ccb53d7a9826fb115bf51c1aafdfc339ca426c79d87d26a823965
font_02_sfnt_off00011333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11333 5316 bytes
SHA-256: 27a100046b7264c43a4d9ed9bce0c9dbb6b6bc4b07348d811ff34964b090f94f
font_03_sfnt_off000124b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124B3 11544 bytes
SHA-256: 0f2411820b67c932fa3d3aa8e060320f86af1325d7e58740552d55fa3a7f6d8d

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