Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a228f62318b7a5…

MALICIOUS

PDF

80.1 KB Created: 2021-03-19 22:04:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45366e27030428cae339dbb62ba6ed68 SHA-1: 976edaa70f7ee6f1c9c61d0e45b568961c1e1f28 SHA-256: c2a228f62318b7a575094c0986aa59bb3182a5e42079c57206625f7c2c8dbb00
136 Risk Score

Malware Insights

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

The sample is a PDF document flagged by multiple heuristics as malicious, including an ML classifier and ClamAV. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic indicates the document's content is designed to trick users into believing they are entitled to a prize or funds, a common advance-fee fraud tactic. The embedded URL 'https://nipisod.ru/wix?keyword=20+dollars+is+20+dollars' is likely part of this lure, potentially leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://nipisod.ru/wix?keyword=20+dollars+is+20+dollars
    • https://cdn.sqhk.co/vebiziwob/iabjiyS/jokujorekisunawatabezi.pdf
    • https://cdn.sqhk.co/xugiwatokax/fjihjhd/entertainer_piano_sheet_free.pdf
    • https://cdn.sqhk.co/kibutonap/ihKniOW/33504965119.pdf
    • http://wutigesekigaj.22web.org/39724637467.pdf
    • http://cmb-societe.com/sezagekupepulzn8l.pdf
    • https://cdn.sqhk.co/vagekoxes/YijhdMs/property_brothers_home_design_hack_ios.pdf
    • http://wotubodedokejag.iblogger.org/98129021631.pdf
    • https://cdn.sqhk.co/metexemoraga/hqhghbU/sword_art_online_games_release_order.pdf
    • http://kenufapozij.22web.org/avidyne_entegra_manual.pdf
    • https://cdn.sqhk.co/wubunepan/QuKygeG/liker_app_for_instagram_apk.pdf
    • http://reduslimitaly-ufficiale.site/diversion_meaning_in_urduodagj.pdf
    • http://itfamily.info/237785798318a3q0.pdf
    • https://cdn.sqhk.co/zalenemu/5ggkgjc/gemosinorekajugelewitaw.pdf
    • http://circus.market/m_audio_fasttrack_pro_manualtv3bl.pdf
    • https://cdn.sqhk.co/wanolugago/IfhazBQ/prime_micro_craft_crafting_game_and_building_simulator.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pomigipasa.epizy.com/dolphin_emulator_apk_for_android.pdf
    • https://s3.amazonaws.com/pasawe/rufinixikumagev.pdf
    • https://s3.amazonaws.com/tinezedu/channappa_channegowda_dj_song.pdf
    • https://s3.amazonaws.com/serogajugomiji/53591572097.pdf
    • https://uploads.strikinglycdn.com/files/1d860d50-2091-419a-98c0-f91b6f680c4c/place_value_chart_thousands_hundreds_tens_ones.pdf
    • https://uploads.strikinglycdn.com/files/618e8a26-0705-4522-9d3d-536061d60889/fall_of_reach_movie_trailer.pdf
    • https://s3.amazonaws.com/donarepemi/dawixepedaxutuziz.pdf
    • https://uploads.strikinglycdn.com/files/19672854-6a01-4317-bdbd-c92aa2f83074/rayne_water_softener_manual.pdf
    • https://s3.amazonaws.com/wisuw/puwasu.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2c8.bin
289a76ab1d70cdae254c45d492ba50ec066a7e80c1690ed8bb1d94d260324625		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C8 5000 bytes
font_01_sfnt_off0000f3cd.bin
2b7eae999a318f9be1351b507de6ec1bee4e5606ede5fa77b21e2bc91f001f43		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CD 11572 bytes
font_02_sfnt_off00011b9d.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B9D 16312 bytes

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