Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d4697282abb6b0…

MALICIOUS

PDF

82.7 KB Created: 2021-03-18 11:02:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1449c9569f2a62d8c355dd7d3a50e8f0 SHA-1: 05207603ecee5eb0f0874234e120891f469538a0 SHA-256: 32d4697282abb6b062c7556a94c2db19f767762ddfc6f7ee3b85310043796942
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a phishing page or a further stage of the attack. The document body, though heavily obfuscated, appears to be a lure related to PDF definitions, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=theological+terms+and+definitions+pdf
    • http://stankovit.ru/what_is_ny_state_prevailing_wage7zh74.pdf
    • https://cdn.sqhk.co/sobexofap/UbDpii4/samsung_voice_recorder_app_download.pdf
    • http://idealslimitaly-official.site/85955890577jtyf5.pdf
    • https://cdn.sqhk.co/fabozesemi/jpxt6ig/9228092828.pdf
    • http://nefuwumimo.iblogger.org/computer_bild_spiele_vollversionen_kostenlos.pdf
    • https://cdn.sqhk.co/nowovadizeb/xhdgf3F/lekiwalezawasezi.pdf
    • https://kutufexefe.weebly.com/uploads/1/3/4/6/134695169/mukoxebakodasawelod.pdf
    • http://negozio50sconto.info/tezegulejole9k85.pdf
    • https://cdn.sqhk.co/gawukale/gghoDhg/please_pick_me_up_in_spanish.pdf
    • http://nozafonavuf.iblogger.org/26212146685.pdf
    • http://spoonnumberone.xyz/202271088157bq23.pdf
    • https://pobunusegem.weebly.com/uploads/1/3/4/4/134460984/4645242.pdf
    • https://vebodejivab.weebly.com/uploads/1/3/2/3/132302978/4030b971b028.pdf
    • https://dutilugamon.weebly.com/uploads/1/3/5/3/135301630/5309089.pdf
    • http://vifepixakusuped.iblogger.org/jostens_yearbook_cover_template.pdf
    • https://cdn.sqhk.co/kopilixa/1xidwjh/furniture_mod_for_minecraft_free_download.pdf
    • https://jixawapideraje.weebly.com/uploads/1/3/3/9/133997308/dutimovikela_zogiribimoli_juwebonulodo_navojemak.pdf
    • http://werewov.22web.org/angry_birds_rio_2_free.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/a27c6db6-b034-43e9-a8a7-5eee0d471e46/are_oil_filled_radiators_safe_to_leave_on.pdf
    • https://uploads.strikinglycdn.com/files/8eb824ee-dcc2-4a8d-a187-62952211cf84/solar_electricity_handbook_2017_edition_free_download.pdf
    • https://uploads.strikinglycdn.com/files/f61f9db1-6184-49fb-a441-17af0d6c754a/alex_rider_scorpia_rising_english_creek.pdf
    • http://zukavinu.rf.gd/present_perfect_tense_worksheet_esl.pdf
    • http://zizumanoxiv.epizy.com/first_alert_9120b_green_light_flashing.pdf
    • https://uploads.strikinglycdn.com/files/47b869d9-b9d1-4361-b449-64da98492749/gobovegoreduxoreda.pdf
    • http://watibanawik.epizy.com/animal_embryogenesis.pdf
    • http://lekinip.epizy.com/cultural_factors_affecting_consumer_behaviour.pdf
    • http://jelamadigeg.epizy.com/bill_book_sample.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2e7.bin
9d00a08ac68d7701f1d375390532b6971a8dbad5e6b6c28cf8ff9fde154c761d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E7 5304 bytes
font_01_sfnt_off000104c9.bin
94f30b1411729236ce01c4f06c65d779aba95c7a7e8e3f2c24fda9cd18f556cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x104C9 12588 bytes
font_02_sfnt_off00012d3d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D3D 4324 bytes

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