Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c96f9c5095fb8e3…

MALICIOUS

PDF

78.3 KB Created: 2021-03-16 18:40:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 000dd64bd433c8836d97a04f74c9afe7 SHA-1: 628b0766c77ef26e2013b8ef4874204c47af892c SHA-256: 2c96f9c5095fb8e3ffddb6a202caa8501bc931bdda418459a011457b2c89f848
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'lozipotod.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'Ap biology reading guide'. No scripts were extracted, but the presence of external URIs and the overall malicious verdict strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/wix?keyword=ap+biology+reading+guide+fred+and+theresa+chapter+3 PDF link annotation
    • https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/fd709f9.pdfIn PDF document text
    • https://sajogosekatoja.weebly.com/uploads/1/3/4/6/134682383/7f7cd83c35.pdfIn PDF document text
    • https://motanaweda.weebly.com/uploads/1/3/4/3/134316912/totiket.pdfIn PDF document text
    • http://velesvoyage.ru/asphalt_8_airborne_free_onlineyka40.pdfIn PDF document text
    • http://fogazino.iblogger.org/98014590638.pdfIn PDF document text
    • http://jologedeb.getenjoyment.net/stalker_dsr_2x_manual.pdfIn PDF document text
    • http://topsale.pro/10739541291sij5q.pdfIn PDF document text
    • http://ag-management.space/businoro7ekn.pdfIn PDF document text
    • https://nuvaxavixo.weebly.com/uploads/1/3/0/7/130738964/gibojazevivela.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://uploads.strikinglycdn.com/files/ef384230-2034-449d-90f8-5384b49d40c4/jigikuki.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/topati.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/72026445953.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/buwawebe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6621d8d-8a67-40be-bc51-13c2f6aa26e7/69583409750.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/bsnl_internet_complaint_letter_format.pdfIn PDF document text
    • http://sagunum.rf.gd/xajenanakalusafan.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/vakopabasonalivakos.pdfIn PDF document text
    • http://gixejemazob.myartsonline.com/diwuwinamelobuvevuz.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_off0000e12b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12B 5696 bytes
SHA-256: e56f4f61f889421b698c1dea3faeb1296e37be84bc1367a984e4b8b74c0c4b40
font_01_sfnt_off0000f47c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47C 11392 bytes
SHA-256: fca9d925f72ea1d17edc294a21dcf6059f32d66d9808b032b7cd1f1960f086e7
font_02_sfnt_off00011b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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