Malicious PDF — malware analysis report

Static analysis result for SHA-256 709d5b4d76c389c6…

MALICIOUS

PDF

82.0 KB Created: 2021-04-06 23:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: d8af915f8cf1dd127e7056e8dfe49965 SHA-1: ed45fdb18531393db4dfb344e0e6af449ec8f2cf SHA-256: 709d5b4d76c389c64a7c7187f7f59b2a821a7226d4b588c3baea9be584e7aac4
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. The embedded URL points to a suspicious domain, suggesting it's used to deliver a malicious payload or redirect users to a phishing site. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely related to social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://zajinet.ru/strik?utm_term=roland+xp+80+for+sale PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379987/normal_60126ef6beb42.pdfIn PDF document text
    • http://rexapeduke.66ghz.com/moxeziruvawafuxexuduvevor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369797/normal_5fd84107353a2.pdfIn PDF document text
    • http://tisekadulokin.iblogger.org/kemino.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366339/normal_6065076e68058.pdfIn PDF document text
    • http://lufirisor.iblogger.org/zafopufupeximozowuzazuwon.pdfIn PDF document text
    • http://kubasavi.iblogger.org/blade_inductrix_propeller_orientation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/9576541138.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/56516131592.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/xokigiveremonotajusirobi.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/allu_arjun_picture_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/baby_bjorn_cradle_sheet_size.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/osrs_dagannoth_slayer_guide_waterbirth_island.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf94eb30-95f4-4c96-b80d-6c794d057380/what_skills_and_knowledge_are_required_to_communicate_effectively.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/baishe_srabon_full_movie_480p.pdfIn PDF document text
    • http://poresiz.epizy.com/17370301084.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/79125877183.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/all_rounder_1984_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/70037645412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf1db7cf-9dab-46c3-ab14-0214ab00b696/ipod_nano_used_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/tomedas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/718f9a54-f36b-4706-9851-d11d42cd6cdb/68915285154.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_off0000f728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF728 5108 bytes
SHA-256: 791dab67b9adecb0268b52e7dacec6988f826b1099e3f19c96181d90fbed9ea0
font_01_sfnt_off0001088c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1088C 10484 bytes
SHA-256: 7ea70371fcd3970d157f6dfd0bf9779e937aee4c9bb5822759ccc33b38570a2c
font_02_sfnt_off00012c84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C84 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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