Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a2ac2eb14ac0c3…

MALICIOUS

PDF

76.4 KB Created: 2021-03-30 06:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6d71f2b89cf42f65d98b1740571042e0 SHA-1: 3f07c69beaeab580b9226532a6a8170f57cdda4b SHA-256: 12a2ac2eb14ac0c32ddbe7bc3340482874a7d3378510d4ffa3b58546822d241d
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 0.9991

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://vilenefex.ru/strik?utm_term=tableaux+de+provence+analysis PDF link annotation
    • http://nokilupijavep.22web.org/lopovuzasajadufo.pdfIn PDF document text
    • http://migipobazu.mypressonline.com/84015446693.pdfIn PDF document text
    • http://losinglotterynumbers.com/grand_staircase-escalante_national_monument_road_mapdbki9.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/belajar_bahasa_arab_file.pdfIn PDF document text
    • https://cdn.sqhk.co/nowagenika/ZggoUia/genipaxa.pdfIn PDF document text
    • http://kusafomidufe.mywebcommunity.org/prayer_cloth_patterns.pdfIn PDF document text
    • http://gudagop.22web.org/pobovuvodovarulekovax.pdfIn PDF document text
    • https://cdn.sqhk.co/jaguwubax/bv8ji7m/oceanhorn_2_walkthrough_tower_gate.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/cihtn9n/wosusojejuxawisuva.pdfIn PDF document text
    • http://rimelutafoterir.iblogger.org/pajagejovibitiwor.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/bahfjiN/union_gospel_press_sunday_school_lesson_2020.pdfIn PDF document text
    • http://juzufezike.mygamesonline.org/43323824536.pdfIn PDF document text
    • https://cdn.sqhk.co/gelowidabik/jOjjijb/runalifuzesudojubolatidi.pdfIn PDF document text
    • http://help-violation.com/37436513870nay1g.pdfIn PDF document text
    • http://faceit.su/how_to_trade_in_amazonl6rjl.pdfIn PDF document text
    • http://1-bog.ru/rumotvrfbr.pdfIn PDF document text
    • http://biwiroxefamir.mywebcommunity.org/43592512166.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pexefenebize.epizy.com/hollywood_new_horror_movie_2019.pdfIn PDF document text
    • http://guxudapese.epizy.com/19067312788.pdfIn PDF document text
    • http://kivevufawonin.rf.gd/ap_tet_2018_answer_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33cb9be9-3d02-4083-b43f-d466de2b8494/lawaputiwemebetub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffc882cb-34e1-4b08-ae46-22cf2cdf87e3/jabepegitudinevesetorid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef2538d9-227c-4127-ad37-6ac8bc7e69de/35293746866.pdfIn PDF document text
    • http://kegotetebam.epizy.com/how_was_the_telephone_used_in_the_industrial_revolution.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE803 5384 bytes
SHA-256: 75a1c718ca4b61fb5d200bc88ff3f7375f2ef510cf5abf46717777a41c9d840a
font_01_sfnt_off0000fa6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6A 12216 bytes
SHA-256: baa6e69c71bc7902f3a083136252fca77a0e5f2f457acbdcc358f5108bd8ce25

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