Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9cdca625a225257…

MALICIOUS

PDF

92.3 KB Created: 2021-03-11 20:52:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02181105b8c862944e52b4ed95fc6194 SHA-1: ceebde4a9d3cc176a3df04e2ced453cea4cf10da SHA-256: f9cdca625a225257195aafdb3c93e205b27dbd6050818b0f56ece5b996dd2775
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, which is a common tactic for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or delivering a trojan. The embedded URL points to a domain that is suspicious and associated with the lure of an employment offer letter.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/123?utm_term=employment+offer+letter+template+pdf
    • https://cdn.sqhk.co/zijatiki/Nhb0Uih/27855617462.pdf
    • http://movawizaxaxato.mywebcommunity.org/basic_electrical_engineering_book_in_tamil.pdf
    • http://felesatediz.medianewsonline.com/hs_mini_maxx_update_2020.pdf
    • https://cdn.sqhk.co/tabewinudeka/ieSjajb/bofaborerulaluvi.pdf
    • https://cdn.sqhk.co/gigijuke/JIhjzqD/best_offline_iphone_games_for_toddlers.pdf
    • https://cdn.sqhk.co/nuvexajamu/WjhZhhV/photo_video_editor_for_android_free_download_apk.pdf
    • http://xalapuzim.sportsontheweb.net/definition_of_effective_teacher.pdf
    • https://cdn.sqhk.co/vikimono/jgsIjbQ/minecraft_unblocked_online_free.pdf
    • http://gixitetopes.scienceontheweb.net/email_format_example.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/da78488b-9074-4e84-b51f-398126a7f761/xijofobiruzefotorela.pdf
    • https://uploads.strikinglycdn.com/files/9348e968-ab1d-44b7-bf10-1bc806c2cca9/39129485156.pdf
    • https://s3.amazonaws.com/kukupunopedon/segezatuze.pdf
    • https://s3.amazonaws.com/zerepuzuze/how_to_detect_carbon_monoxide_without_detector.pdf
    • https://uploads.strikinglycdn.com/files/737dfc19-e537-4a13-8525-3b787456dccc/41714125846.pdf
    • https://uploads.strikinglycdn.com/files/ad258746-9f11-4a0e-98b4-2c74dd26f9a7/duzok.pdf
    • https://uploads.strikinglycdn.com/files/5f6ceaff-6a24-4de7-8420-bc6b2498c52a/absalom_absalom_full_text.pdf
    • https://uploads.strikinglycdn.com/files/c092686a-07ce-4f15-8f5e-56be3d200a05/shark_lift_away_deluxe_loss_of_suction.pdf
    • https://uploads.strikinglycdn.com/files/06604dc2-f845-447a-aaa7-c060924acc92/bujusowosukufarizaz.pdf
    • https://uploads.strikinglycdn.com/files/60cbffe5-674b-47a7-83a6-75efc07d4fd6/kovuxelobumukudavib.pdf
    • https://s3.amazonaws.com/guvovigo/64215506446.pdf
    • https://uploads.strikinglycdn.com/files/6d970f8f-9d5d-4130-b886-7876be71530f/how_to_start_a_generac_5500_generator.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7a2.bin
c6acebe3750ab55c09714fa1b34f6c70ddae3ce202e1a088ffcbc34adab53285		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A2 6588 bytes
font_01_sfnt_off0001081c.bin
4ea8c8711f9d9c763c6fda0b18b7aba1632b6f99d2cddd5748008bd91fbfe2ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1081C 5068 bytes
font_02_sfnt_off00011949.bin
cdb6e30632f8a99f8a32b4eb8a52d7b0159debad0010adae787d69fbfea2450d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11949 3268 bytes
font_03_sfnt_off0001264b.bin
80523cdd46652a80318fbd72c91acbefbf368c41eeb4240371e007c69da7a6c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1264B 10948 bytes
font_04_sfnt_off00014bba.bin
f8fa0b238ec2b54f3f273be207d6bf72ef2cc9cba725d38c55971e460eb35c58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14BBA 16492 bytes

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