Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f2ecd209469172a…

MALICIOUS

PDF

89.7 KB Created: 2021-03-08 21:05:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6ded4f7be0e602cd37fdcafcf4271234 SHA-1: 533b24e94912e9fad235498ba40513f435058f19 SHA-256: 0f2ecd209469172a81814e433f676b940c555c1a886b2eae0d58758773f5c2cd
126 Risk Score

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 0.9983

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://lozipotod.ru/123?utm_term=film+dossier+template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4423137/normal_5fe6b138f1f73.pdfIn PDF document text
    • http://rugegav.mywebcommunity.org/fijatawititakedetuvufamin.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/who_invented_school_tik_tok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495390/normal_5fd27afe410d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419642/normal_5fc798e8d254c.pdfIn PDF document text
    • http://vikiduxa.mywebcommunity.org/31625266769.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/yaesu_ft-7800_tx_mod.pdfIn PDF document text
    • http://fejukoturig.medianewsonline.com/how_to_play_tennis_for_beginners.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375352/normal_6000d286daf04.pdfIn PDF document text
    • http://xikisavi.scienceontheweb.net/guvar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495837/normal_6043497cb2c10.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/396c0342-0e9c-44dc-8730-2a5769173564/chiron_the_wounded_healer_astrology.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/runegakelomoviwib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c82aa92-42ea-4fb1-ad11-d6d1e144ca86/coleman_lazy_spa_pump_making_noise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d2cc5ef-4975-4cd8-a032-62f58a112be6/buruzerabogajebilafawozes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d1977e2-057f-417f-8a14-8f80728d609f/what_are_the_5_principles_of_design_in_art.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e58a79d-f43f-4bca-8ed6-96ad1bf9cf44/essay_topics_for_grade_4_in_urdu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cbb486d-a2fe-459b-b371-39e99fec4118/wu_tang_american_saga_episode_4_soundtrack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0fa3b7b-aef6-4a34-9fde-99feddba0d4d/58515470032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53bd1907-85b3-40e0-90a5-4b6a660d21b6/59767345015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9de67c4-d7fe-4708-bdcf-04fb10bc4281/neato_robotics_xv-21_battery_issue_0002.pdfIn PDF document text
    • http://vewawisu.onlinewebshop.net/soundcraft_ui12_price.pdfIn PDF document text
    • http://xujided.onlinewebshop.net/mtd_snowblower_shop_manual.pdfIn PDF document text
    • http://tofilijewok.atwebpages.com/brown_v_board_of_education_1954_summary.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001022f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1022F 5060 bytes
SHA-256: 7f1c36c3599744525016f71fe709683e587ab71c4b8fdca7b569034b18b74161
font_01_sfnt_off00011348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11348 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off00011eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EAB 10604 bytes
SHA-256: e24049d3bef407ef360737121bab3866e8522db0f4a1f136766a500170b4b574
font_03_sfnt_off00014322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14322 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15