Malicious PDF — malware analysis report

Static analysis result for SHA-256 0484132412e455df…

MALICIOUS

PDF

74.8 KB Created: 2021-03-11 06:29:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 01546733e9dd207dfeeea2ef6cc0f9c2 SHA-1: b960ed5a331bdd7c4360138e5f4051c4606c0775 SHA-256: 0484132412e455dfc9d68259f2781a4daa1ffffb269a51710a0af8f7274fe82c
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/123?utm_term=livro+cartridges+of+the+world+pdf PDF link annotation
    • http://kamini33.ru/favawisibo38jiz.pdfIn PDF document text
    • http://hihikane.space/217779182569dbqp.pdfIn PDF document text
    • http://parewizukesez.22web.org/express_vpn_unlimited_mod_apk.pdfIn PDF document text
    • http://rigekuxinitevov.iblogger.org/ruger_blackhawk_elite_silencer.pdfIn PDF document text
    • http://sunufosabupes.scienceontheweb.net/42199704791.pdfIn PDF document text
    • http://copyrightproblem.com/xfinity_x1_dvr_remote_app0jhe3.pdfIn PDF document text
    • http://ipoteka.net/temporally_ordered_routing_algorithm0vjv1.pdfIn PDF document text
    • http://dontbeshy.xyz/swepco_arkansas_power_outages2f3p9.pdfIn PDF document text
    • http://wuvuzijime.22web.org/almost_blue_chet_baker_piano_sheet_music.pdfIn PDF document text
    • http://my-favshop.online/oldboy_2003_english_subtitles_downloadrbyxw.pdfIn PDF document text
    • http://palipupo.22web.org/what_is_the_point_of_being_alive_if_you_dont.pdfIn PDF document text
    • http://nexekeb.iblogger.org/zoluxo.pdfIn PDF document text
    • http://rolorutebu.sportsontheweb.net/tendinitis_aquiliana_ejercicios.pdfIn PDF document text
    • http://passive-income.ru/can_you_mod_new_vegas_on_xbox_onerkaq2.pdfIn PDF document text
    • http://importants.space/one_piece_grand_battle_rush_apkg8l0f.pdfIn PDF document text
    • http://spindlndou.space/wevasir2950g.pdfIn PDF document text
    • http://harmony-market.ru/samsung_un60fh6003f_audio_outyhfhz.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/329fba22-5af4-48e8-b2ff-dc4ce8d09982/100_startup_book_download.pdfIn PDF document text
    • http://besipobewawite.rf.gd/locked_up_movie_parents_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b02889c9-18f1-4e23-bf43-a87c197f1a6c/1001_classical_recordings_you_must_hear_before_you_die.pdfIn PDF document text
    • http://zuvetimimu.rf.gd/63243184741.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2a08d05-91d3-4288-9898-6301b488ab26/how_to_put_vinyl_sticker_on_glass.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/592eea52-b1b8-4bcc-9088-7a81ca09f332/arduino_projects_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a5fd5f9-7c32-4360-89aa-ae79b3069556/karomif.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_off0000e661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE661 5512 bytes
SHA-256: 2f8d8b3f4053408df59683df3741ffa432b968bfbf1c91abe700909bda75c082
font_01_sfnt_off0000f93c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93C 10924 bytes
SHA-256: af46d8c0d41b6300f899fa2dbbcce7f4b98499ff57b235035eae7d3069ac886f

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