Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5d580e33ab3533…

MALICIOUS

PDF

131.3 KB Created: 2021-03-06 09:23:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ca1c2a8c4c72b4d04987dd369e0d1ddb SHA-1: d983c1d9d8d19e0f2a02bdc6828ce7f00ccb647b SHA-256: 7f5d580e33ab353309e029e86a33f4f36fe579159562b1b739c902578ce7bedb
136 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains references to 'Cyberpunk 2077 pc release date' and includes an external URI pointing to a related URL, suggesting a lure. The presence of the 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass security filters.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://jottigo.ru/award?keyword=cyberpunk+2077+pc+release+date PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451027/normal_5fc8ee01cb10e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484118/normal_5fdaabbb91e0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383334/normal_60140d667a59a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489730/normal_5feedcd820e02.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385635/normal_5fdd321523298.pdfIn PDF document text
    • https://cdn.sqhk.co/xumelesep/jaI2aie/best_action_movies_2018_and_2019_imdb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416154/normal_60003acf27fa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467577/normal_602ce50a975fd.pdfIn PDF document text
    • https://cdn.sqhk.co/kujexelorite/gcBkhgs/arrow_up_and_down_animation_css.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492600/normal_601d9f3b679d0.pdfIn PDF document text
    • https://cdn.sqhk.co/bobimugura/jgthh4O/7524145477.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375344/normal_602055ace97d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366343/normal_600ac7dbee8bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453105/normal_5fe9d2ba9c22e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408475/normal_601df7b3a6e4e.pdfIn PDF document text
    • http://xusonawifofi.iblogger.org/xokikejuwevodavareloze.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/100262dc-079d-4797-9d63-5f5f6a4eeed1/sentry_safe_combination_dial_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52dbaf09-e4fa-4e99-807c-d553150192a9/the_taming_ofthe_shrew.pdfIn PDF document text
    • http://tuzuvas.rf.gd/case_files_family_medicine_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15c5d994-b032-4034-a0e0-6efa43b32419/bushnell_565_telescope_eyepiece.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ce9c08d-61da-4826-8734-8ddee12514a1/merkury_wireless_earbuds_pairing.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_off0001b3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B3B9 4788 bytes
SHA-256: a203a57eca702ec9c01ffbd237a9589d2ce3f599eaac76fdf9c94436dc70537e
font_01_sfnt_off0001c471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C471 5632 bytes
SHA-256: 6664b79ecd390c9e0cbff5637d43bcfcab6f350e3ba749f578fdef4640e52107
font_02_sfnt_off0001d7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D7AD 11560 bytes
SHA-256: c112303f992a2b8e235d192408641cfb0bbf2747c656481f00cd3aff80de0c20

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