Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ab5fec02167f953…

MALICIOUS

PDF

69.1 KB Created: 2021-05-11 23:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c61080b4449b45ba8a2b9d4b57b391d8 SHA-1: b97be4ff20e72cab2927a16614fa2ac7c718c2f8 SHA-256: 6ab5fec02167f953384cc6f2deb63ee0311fba2ae88cf993e725bc39569cf5b3
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 0.9960

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/strik?utm_term=orbit+irrigation+install PDF link annotation
    • https://cdn.sqhk.co/kufalavoxig/1rRDSri/cocoto_alien_brick_breaker.pdfIn PDF document text
    • https://cdn.sqhk.co/tunidenopu/gcOgiHP/62891960847.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444649/normal_6037d2e7ce681.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454301/normal_603d76d51f30d.pdfIn PDF document text
    • https://cdn.sqhk.co/pevejotomoma/fMQgiou/world_of_tanks_blitz_hack_apk_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393193/normal_600b1deab8a6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489596/normal_6058e28d068f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500692/normal_603d97cce197a.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/gF2Tcha/41811736042.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473619/normal_601d54a73d79b.pdfIn PDF document text
    • http://bestita.space/red_ball_4_volume_2_unblocked_gamesccl89.pdfIn PDF document text
    • http://klokisik.space/ge_profile_spacemaker_microwave_surface_light_bulb_replacementpbsad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476750/normal_603290f6d9711.pdfIn PDF document text
    • http://show-visitor.xyz/historia_universal_contemporanea_bachillerato_5_semestre65wuj.pdfIn PDF document text
    • https://cdn.sqhk.co/bidogefapo/9lijhaK/pac_12_championship_2019_attendance.pdfIn PDF document text
    • https://cdn.sqhk.co/lepowabog/GhdbiiL/fireboy_and_watergirl_crystal_temple_unblocked_cool_math.pdfIn PDF document text
    • https://cdn.sqhk.co/kupemopo/eVhdohf/personal_budget_spreadsheet_google_sheets.pdfIn PDF document text
    • http://zvezdasevera.online/entry_level_manual_testing_jobs_in_njsfuya.pdfIn PDF document text
    • https://cdn.sqhk.co/kafodarifab/gehjHYF/xedox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369183/normal_602f88e2c5296.pdfIn PDF document text
    • http://muldwych.com/top_40_radio_chartn53ki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418993/normal_5fd7ed93f37b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479470/normal_5fc884bf49d8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407552/normal_6008c89f0aa88.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366984/normal_5fecf46787732.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451368/normal_60064d962a8f2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C7 5020 bytes
SHA-256: 97844ab9383fa44223e87cabf7f7f408780dcb839592aea00a4969b52fa13d56
font_01_sfnt_off0000e3e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E8 10192 bytes
SHA-256: 2b32541af6d64813a3e89bedfa68eaf0f27c325989b8bdacab22b127973d5f17

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