Malicious PDF — malware analysis report

Static analysis result for SHA-256 142dfa24fafcd9ca…

MALICIOUS

PDF

76.9 KB Created: 2021-03-21 22:15:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: cfea59edcd60ba64e4e243a7d7aed1d4 SHA-1: 8e8dd7783621bd0600a2137e4a589f4f8ca18815 SHA-256: 142dfa24fafcd9ca3d14425d839fd77bab379df35afc47b9e36377fe6d201462
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains numerous embedded URLs, with one prominent URL pointing to a domain associated with phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a manual, likely to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xajibur.ru/wix?keyword=kohler+command+cv15s+manual PDF link annotation
    • https://cdn.sqhk.co/lolajelor/hhidYjf/35058015833.pdfIn PDF document text
    • http://form-lnstagramcopyrightservices.com/chopsticks_2019_full_moviellx8g.pdfIn PDF document text
    • https://cdn.sqhk.co/gepabafi/jaSxibj/mod_super_mario_minecraft.pdfIn PDF document text
    • https://cdn.sqhk.co/niramojiga/igCWJDa/super_dancer_chapter_5_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/kekoseni/t94gi62/family_and_friends_6_class_book_answers.pdfIn PDF document text
    • http://wedavinonuvovu.22web.org/riesgo_tecnologico_financiero.pdfIn PDF document text
    • http://nisiwitas.22web.org/3942357999.pdfIn PDF document text
    • https://cdn.sqhk.co/batijuretak/Mzy2Gjc/painting_pumpkin_ideas_disney.pdfIn PDF document text
    • https://cdn.sqhk.co/koxuvusu/bijSZGB/stance_3d_tuning_garage.pdfIn PDF document text
    • http://rojenugilin.22web.org/vuwas.pdfIn PDF document text
    • https://cdn.sqhk.co/gekakisoduvo/psgjEii/tropico_6_switch_gameplay.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/war_horse_breeds_in_indiagifvk.pdfIn PDF document text
    • http://max-lifting.store/teruzobixotefixasekaxb3i76.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a535240e-dc42-48ee-bf97-42f3d444895b/18646083683.pdfIn PDF document text
    • http://rasinizewubegeg.epizy.com/58026748077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb176589-74a8-495a-ac45-20f67fbdb2a8/how_to_draw_a_cute_dog_realistic_easy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73b80693-9539-4b46-8644-4d2556a1ad99/10893504823.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46180279-9af9-4c6d-8776-865ec52400fe/wevujubajemobomofa.pdfIn PDF document text
    • http://punugituk.epizy.com/calendar_2019_october_november_december.pdfIn PDF document text
    • http://fozilixugijuva.epizy.com/beninca_brainy_24_manual.pdfIn PDF document text
    • http://pasekinewalepu.epizy.com/ableton_9_shortcuts.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E0 5140 bytes
SHA-256: 0b01f5ad8a3b0de9b24b201b61f1b919d2209e748fbd3c41c52f5f542988d8d3
font_01_sfnt_off0000f339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF339 10796 bytes
SHA-256: 8b94fa3a996208b70c2423357643ebd928251cc20374c2ffaa17092537e7eee7
font_02_sfnt_off00011855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11855 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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