Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ce80e288cfc35b…

MALICIOUS

PDF

78.0 KB Created: 2021-03-22 19:59:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 3d109a7a4c79496d7a38bee0a8ef13f9 SHA-1: 2dc13ad865bb9452146b056a9e99a202159b5ca2 SHA-256: 56ce80e288cfc35b3bcf26f04ce122e1f3bcbaae759256f6314fb5b579477b18
126 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. The document body, though partially corrupted, contains text related to 'Wii emulator forwarder channels' and references external URLs, suggesting a lure to phishing or malware download sites. The presence of multiple disposable hosting links further supports a malicious intent to distribute payloads or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

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://ponafet.ru/wix?keyword=wii+emulator+forwarder+channels PDF link annotation
    • http://zusiwibewire.mypressonline.com/17467333907.pdfIn PDF document text
    • http://pedaxofanor.mywebcommunity.org/dotel.pdfIn PDF document text
    • https://cdn.sqhk.co/jawefujivi/AgiCNG9/brad_mehldau_highway_rider_vinyl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479223/normal_604ebb54b4b32.pdfIn PDF document text
    • https://cdn.sqhk.co/xotosobupis/i10lhii/12036123737.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzewekafan/Iidjcic/pulse_secure_error_1329_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/zejejofe/ibhfg9k/hmrc_vat_refund_form.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/9jaibha/wovunesejuwadoli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410194/normal_602020bcd1fe5.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/hy4hcjg/17575223281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405420/normal_603acf936cb5e.pdfIn PDF document text
    • https://cdn.sqhk.co/kerutadit/eUiiC5z/51228445488.pdfIn PDF document text
    • https://cdn.sqhk.co/lasijutag/mmaItgc/9269275096.pdfIn PDF document text
    • https://cdn.sqhk.co/vorebilifi/p1QUljj/kuvulajelagotafe.pdfIn PDF document text
    • https://cdn.sqhk.co/bagadogod/ggC1oPJ/stickers_telegram_para_whatsapp_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445869/normal_603c1c1e9a054.pdfIn PDF document text
    • https://cdn.sqhk.co/rosisole/FIhbtig/bumakenomiva.pdfIn PDF document text
    • https://cdn.sqhk.co/rijujonakuje/gdjdIxY/palimov.pdfIn PDF document text
    • https://cdn.sqhk.co/falugojafat/ggegDyf/29391805023.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421939/normal_601b557edda52.pdfIn PDF document text
    • https://cdn.sqhk.co/dawolesirip/dI0Z2JT/game_bowling_central_2019.pdfIn PDF document text
    • http://xajabuzowa.scienceontheweb.net/make_your_own_python_text_adventure_a_guide_to_learning_programming.pdfIn PDF document text
    • https://cdn.sqhk.co/viwitukaz/8bFjh8X/ijazat_old_movie_songs_pagalworld.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/ad13658f-5b09-4006-9eb6-6ff74bb3c377/56376514858.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb218416-0110-44ac-a893-4deec5f050df/have_yourself_a_merry_little_christmas_piano_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0501c465-eb15-4e1f-a86a-9f87c71db55d/28469526750.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f937a74e-0b37-4fcb-aa8b-db20c2499f28/minn_kota_ulterra_troubleshooting.pdfIn PDF document text
    • http://bidusibebawuz.onlinewebshop.net/best_courses_to_learn_python_for_free.pdfIn PDF document text
    • http://kagijido.myartsonline.com/60366469676.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_off0000f2ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AC 5368 bytes
SHA-256: 92c3cc434d1f4db2e9a079e8a360ef76f7e3ceba51405ccdfd5285447def542d
font_01_sfnt_off000104d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D7 10648 bytes
SHA-256: 355767d43b142e531e0f3d0880286b1b2baca17faecb0ecc10120a10be681b60