Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ec6d2f4ae45b1c8…

MALICIOUS

PDF

78.9 KB Created: 2021-03-23 09:54:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: c0b911a198d0756bef55b94853925a6b SHA-1: 2374d390ebe01b151f16fd968b2610031a6f45c4 SHA-256: 0ec6d2f4ae45b1c81d38a13899d610463e1984adab6c23c2acf9766a6ac2219f
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 a large number of embedded URLs, many of which point to disposable hosting or redirectors, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and appears to be a lure, possibly related to the 'Scott Cunningham wicca book' mentioned in one of the URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://nipisod.ru/strik?utm_term=scott+cunningham+wicca+book PDF link annotation
    • https://cdn.sqhk.co/rarukaboz/c3nBibG/time_traveler_s_wife_sequel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467593/normal_602677329240b.pdfIn PDF document text
    • https://cdn.sqhk.co/gojinuma/gnhgbWS/abakada_ina_full_movie_free.pdfIn PDF document text
    • http://lamorebeduzakoj.22web.org/rowebejafot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368989/normal_60151fa95b3fb.pdfIn PDF document text
    • https://cdn.sqhk.co/vufebevefo/ichjhaV/marvel_movie_collection_dvd.pdfIn PDF document text
    • http://lonuromaz.iblogger.org/astral_chain_guide_file_1.pdfIn PDF document text
    • http://viziwojejafukak.iblogger.org/bright_futures_weld_county_volunteer_form.pdfIn PDF document text
    • http://faviwogewe.iblogger.org/gidugogademezagenunifed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369141/normal_6057bf7f884be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425514/normal_6041f5cb68e30.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
    • http://paxugevobudutis.epizy.com/the_queen_of_the_damned_book.pdfIn PDF document text
    • https://979cd01f-16ea-4d2c-b189-234964c95597.filesusr.com/ugd/d4c4cf_41a76930a1cf4590b074e14622e2cde4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c075c86-d2b1-425d-9065-9f7056691bd8/mesisikikumamufudozop.pdfIn PDF document text
    • https://f0ddeb88-3549-4a27-8821-6e3dd713f165.filesusr.com/ugd/2b74da_5d00bbe761e34e0baa06b03485c502fe.pdf?index=trueIn PDF document text
    • http://gukuwet.epizy.com/zemanasafej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21f666f4-37c2-492d-9e94-85aef87112b0/vowudeladeba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d1790b5-7007-417b-8dfc-9802c5ea06f3/books_of_the_bible_in_order_bookmark.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_off0000e8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FC 5072 bytes
SHA-256: e53aec8354017cf6d378369ae9198ff0b4403a41b53ed5462e7c343086ce945e
font_01_sfnt_off0000fa1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1C 11524 bytes
SHA-256: 7ad99c09f0875f247ceefe35834d7478b1ef9460ba5a96475c799c56d2a52c3f
font_02_sfnt_off00012093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12093 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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