Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0000d60c9de6e29…

MALICIOUS

PDF

181.8 KB Created: 2021-02-21 15:18:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ab807f7359f4abb2490a5918f8e5479b SHA-1: 90e3c8b53e3acb4d1d4d3d155d3cf5911d3d84d0 SHA-256: e0000d60c9de6e29d9f3e5b095bdb2dd09d8e8a48474befae8c10f7f24490eb9
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 0.9990

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://crophysi.ru/strik?utm_term=abdul+kalam+birth+chart+in+tamil PDF link annotation
    • https://cdn.sqhk.co/gawukale/eB9iagj/89603443178.pdfIn PDF document text
    • https://pegepigav.weebly.com/uploads/1/3/4/4/134481067/4738202.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/ge5sYgh/yoob_games_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/mexovaru/flqYjbn/stick_zombie_games_unblocked.pdfIn PDF document text
    • https://rasaputale.weebly.com/uploads/1/3/5/3/135323831/2ed610ef46ac.pdfIn PDF document text
    • http://safagiko.iblogger.org/61424365459.pdfIn PDF document text
    • https://cdn.sqhk.co/nomavunut/GhghdmA/cbse_class_9_maths_chapter_13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_601841c3816e9.pdfIn PDF document text
    • https://cdn.sqhk.co/ramowejub/jbVOSha/43017155566.pdfIn PDF document text
    • https://cdn.sqhk.co/vowobupubuze/2gfpria/neguwazufob.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/jthaijp/65112446455.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492586/normal_5ff6850211eda.pdfIn PDF document text
    • https://cdn.sqhk.co/rotuzuwibi/cljjcK5/best_driving_games_for_ios_2020.pdfIn PDF document text
    • http://sinekem.iblogger.org/nasm_cpt_textbook_6th_edition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447646/normal_6012123d69fbf.pdfIn PDF document text
    • https://vebuwume.weebly.com/uploads/1/3/5/3/135349689/wewin.pdfIn PDF document text
    • https://cdn.sqhk.co/sepokafaru/ficihgi/pavodusumupemamevanopiw.pdfIn PDF document text
    • https://pulapiselipatux.weebly.com/uploads/1/3/1/3/131378970/gorudiboxulurim_xovebew.pdfIn PDF document text
    • https://dujemezore.weebly.com/uploads/1/3/1/3/131381607/6225006.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485443/normal_60246cd030022.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn 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
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00027c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27C93 5192 bytes
SHA-256: 9e6014b83fc5cecaf6dacebf803d3445bd0ca7a8f732015df2b92f9bb30db4a7
font_01_sfnt_off00028e03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28E03 4996 bytes
SHA-256: 47977219e7d11ce4a6ccd9238b1cc57c334af38cf28f8991d4b7e77a79130099
font_02_sfnt_off0002a016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A016 12180 bytes
SHA-256: 3340af735b509867ef7377964bbc113fa8000f1e8253b9603d02779736a074cb

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