Malicious PDF — malware analysis report

Static analysis result for SHA-256 f32c7deb689ef490…

MALICIOUS

PDF

70.4 KB Created: 2021-03-13 12:39:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c3aa38a2eebc28f0c7acb59d4cfc548a SHA-1: 1107d5220cb97877578a47ee22052cd35d16d980 SHA-256: f32c7deb689ef490d8cc4282799b039023914ba623b671814929f692a2f1e94c
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 0.9996

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://bologen.ru/wix?keyword=altitude+trampoline+park+jacksonville+nc+hours PDF link annotation
    • http://bighome.space/rekitobutu0a7rm.pdfIn PDF document text
    • http://instapriz24.online/impossible_motor_bike_stunts_2019_mega_ramp_gamesxj8c2.pdfIn PDF document text
    • http://inglassrus.ru/cheat_sheets_em_portuguesjpo5m.pdfIn PDF document text
    • http://gopubewigofopa.iblogger.org/61379551185.pdfIn PDF document text
    • http://arenaprobet.com/ms_drivers_license_renewal_covidk2lgg.pdfIn PDF document text
    • http://banquepopulaire-fr.org/bamopexikigupcbff.pdfIn PDF document text
    • http://nagesebaz.iblogger.org/project_cerberus_apk_latest_version.pdfIn PDF document text
    • http://sberbank.services/41982979003uo9ho.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fabevurubojob.epizy.com/papeburevunifumidunekefek.pdfIn PDF document text
    • https://9cc02d22-446e-415d-9686-6e49aadcb3b3.filesusr.com/ugd/aa6a08_5ee7df34eb5e45ca88c7fe52c41f2d38.pdf?index=trueIn PDF document text
    • http://jusowegakero.epizy.com/72644944675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cebf6296-9a6d-4d75-b028-99d868a0a342/how_does_a_gas_turbine_power_plant_work.pdfIn PDF document text
    • http://vimedunofonuw.rf.gd/alfonsina_y_el_mar_partitura_gratis.pdfIn PDF document text
    • https://973697ad-ffa4-4f9d-85cd-0c9d1ea039ee.filesusr.com/ugd/5f5755_ccea59ed0d474ec0acace88e7e0622ab.pdf?index=trueIn PDF document text
    • https://ebd73b9a-b255-48a5-b781-2bd84b483b4c.filesusr.com/ugd/956c05_ebb6ea3588ea477db32247aef0a72ad4.pdf?index=trueIn PDF document text
    • http://podugidak.epizy.com/jitirugudugirelo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b022841c-eaf1-43b6-8c2c-e81e7a6bb3a8/what_are_some_similes_in_sinners_in_the_hands_of_an_angry_god.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07f3ee3d-863a-4fc8-82bf-83ab85769f67/82195232701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/989250de-c5e9-4c43-9194-0ce3387ec106/special_right_triangles_worksheet.pdfIn PDF document text
    • https://d85b1738-a471-4043-b59e-116b2bb794a3.filesusr.com/ugd/97927e_0b3ed6a35a8c42faadcc239b3136610f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5ec2984-1eaa-4e6b-a742-a78082218120/5066130628.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c72b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC72B 5384 bytes
SHA-256: 60cc94156c6e840bed1d4222187db87c8dc4839f5fcd4b3e24e32abb8769d2f8
font_01_sfnt_off0000d947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD947 10932 bytes
SHA-256: 3c88f3776bfb5a7d32c6381f6796d223bd533b56671830244df0e99df8cfba3d
font_02_sfnt_off0000fdeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDEB 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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