Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2a80a47a5df7c1…

MALICIOUS

PDF

81.8 KB Created: 2021-03-19 06:00:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d737250494db7c7a74d8d3de0a61718c SHA-1: 13c02a46a70823dee2fae22625079293a453331c SHA-256: 0a2a80a47a5df7c1570eb30a775e1c23410207149453a327dc6c438825f4e85c
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 0.9998

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://mezovuduw.ru/strik?utm_term=southern+ute+indian+tribe+language PDF link annotation
    • https://gitodaxip.weebly.com/uploads/1/3/5/9/135960033/fdb571.pdfIn PDF document text
    • https://cdn.sqhk.co/pifajaloro/flvkwbY/game_room_ideas_without_pool_table.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/dhijcRP/foe_helper_fur_firefox.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvazuginu/hiiiiic/business_administration_and_management_courses_in_canada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410186/normal_5ff6c6f747701.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483338/normal_600ecc50ba6f0.pdfIn PDF document text
    • https://fonekukiko.weebly.com/uploads/1/3/5/3/135393218/780014.pdfIn PDF document text
    • https://cdn.sqhk.co/zifalulog/LdhjNMd/dikoso.pdfIn PDF document text
    • https://cdn.sqhk.co/dowepigakaw/ehhnAif/racing_fever_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381095/normal_602afa754fb14.pdfIn PDF document text
    • https://bivesazi.weebly.com/uploads/1/3/4/6/134652180/1691395.pdfIn PDF document text
    • http://totevev.22web.org/tiduxuluzulowatebelu.pdfIn PDF document text
    • https://jomokojexenubi.weebly.com/uploads/1/3/4/8/134877089/fedurosugod-momesarufosu.pdfIn PDF document text
    • http://mitidogifomasis.iblogger.org/77408589967.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jivevex.rf.gd/pioneer_avh-1330nex_wont_turn_on.pdfIn PDF document text
    • http://zevizajezu.epizy.com/pepivusexipasedikibetes.pdfIn PDF document text
    • http://subuxobudigaka.epizy.com/veeranjaneya_bhajana_naa_songs.pdfIn PDF document text
    • https://9907981b-0bc7-4fd3-a434-169f7cdadf42.filesusr.com/ugd/575363_d499a885f53f4cb0a48ea9a5a58ed235.pdf?index=trueIn PDF document text
    • https://69a7f268-727d-4112-ba4f-a3538cc856be.filesusr.com/ugd/9a0d60_2985a79378034fc59df8347043d035a4.pdf?index=trueIn PDF document text
    • http://wulukexererumus.epizy.com/delhi_belly_full_movie_1080p.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB74 5152 bytes
SHA-256: 142acbf31efcd148c4e6947c37921aa28703fd6dc961e552ff8aee83cf24932c
font_01_sfnt_off00010ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CEB 13460 bytes
SHA-256: ee81b252264c614a045b2d9e0c9721a48fd70d077b82c48c8417364b6c3aaffd

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