Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb478c8155ffc91…

MALICIOUS

PDF

73.4 KB Created: 2021-04-01 06:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b7384e829648d544de7e7174254321b9 SHA-1: 2d4af4ce947c4f68f6313701d1bc1f814a002e8f SHA-256: 8eb478c8155ffc913aa78b92d3aa6d7fe18fc8cd31b3aca43e8ec51705befb9b
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 0.9997

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://botokaw.ru/strik?utm_term=pmd+beauty+clean+reviews PDF link annotation
    • https://cdn.sqhk.co/lasetipulos/bhiJkUs/betta_fish_live_wallpaper_free_mod_apk.pdfIn PDF document text
    • http://kawlites.online/carl_jung_arquetipos_e_inconsciente_colectivonqoqv.pdfIn PDF document text
    • https://cdn.sqhk.co/luketopaja/g3UMwSj/html_number_format_money.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/8heJibA/ben_pol_new_song_wapo.pdfIn PDF document text
    • https://cdn.sqhk.co/gusiloxi/qigFihI/maze_cartoon_labyrinth_3d_hd_wallpaper.pdfIn PDF document text
    • http://lemosinixetafox.iblogger.org/25252618048.pdfIn PDF document text
    • http://deduwewelu.iblogger.org/bangla_bandari_song_shorif_uddin.pdfIn PDF document text
    • https://cdn.sqhk.co/vuritukupus/gdsifvp/imagenes_de_free_fire_pase_elite_sakura.pdfIn PDF document text
    • http://gerda-msk.ru/54729886558d156v.pdfIn PDF document text
    • https://cdn.sqhk.co/demexadol/heKbnhc/diversion_dance_roblox_id.pdfIn PDF document text
    • https://cdn.sqhk.co/lozosasuxe/iiSGBxu/43089970198.pdfIn PDF document text
    • https://cdn.sqhk.co/rezeribevi/giNTjb7/79114440552.pdfIn PDF document text
    • http://studytogether.fun/linking_google_drive_to_wixi1aj1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ffad800-f2d4-401c-b804-a9f02d2aa1b4/blessed_be_your_name_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/are_there_grants_for_nonprofit_organizations.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/bean_bag_pattern.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9393b7c7-2e54-4a96-99af-61ad801c34a7/16871017534.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9159d8b2-5c39-4a4f-bae2-c97b145dc05f/english_language_school_near_me.pdfIn PDF document text
    • http://gelanuvefod.epizy.com/46240531065.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/13790792141.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_off0000e19d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE19D 5480 bytes
SHA-256: d7db805f08d3832c41aa09cd35e1ae008940c44710ae76f574a618b9985a6e2f
font_01_sfnt_off0000f43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43B 10584 bytes
SHA-256: 74c6738c97eae51c9b2debd8dbed3856854cb068bf28b2bbae3448907ccafa43

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