Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f87be636aa3f20…

MALICIOUS

PDF

79.5 KB Created: 2021-03-19 03:34:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 5a25090455cf460e865b320c5e717cff SHA-1: 5e89e3d0ffd0c027dd2cb761148a98547083364f SHA-256: 49f87be636aa3f20a652d3319b0c8d811c682a01e85ec12d58025ccb7f668812
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://lozipotod.ru/award?keyword=2020+camry+specs+pdf', which is likely a phishing or malware distribution URL. The document body, though heavily obfuscated, suggests a lure related to '2020 camry specs pdf'. No scripts were extracted, but the presence of an external URI and the malicious verdict strongly suggest a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/award?keyword=2020+camry+specs+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374851/normal_5fec4d781ec44.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406777/normal_6006e4d0ddfdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460071/normal_601a887680152.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417406/normal_601d72595b1b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367271/normal_602df9f606ba6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492593/normal_602a97c1437fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416656/normal_5fdd1807786ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453528/normal_5fc6495189d77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454056/normal_5ffe9f7f00cd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470833/normal_6009e4399ecd7.pdfIn PDF document text
    • http://bimemonok.22web.org/monster_in_law_streaming_vo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487665/normal_5fcb37acb7084.pdfIn PDF document text
    • http://juluzenaluziwo.22web.org/antigone_paul_woodruff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450628/normal_5fd815f04fa7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494674/normal_5ff90c4680c4d.pdfIn PDF document text
    • http://jezapaditasas.22web.org/conceptual_physics_reading_and_study_workbook_answers_chapter_4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417527/normal_5ff7d7ce486f6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tafogusegabomu/28943405754.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/indian_alphabet_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/9712517250.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/runosedufesugisakewusu.pdfIn PDF document text
    • http://kesobiw.rf.gd/mitemegomakulatafomirowu.pdfIn PDF document text
    • http://nekajisez.rf.gd/33476314294.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f78d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF78D 5552 bytes
SHA-256: 7b1890f9ab591aecf8c690f5ffb0a45e6bf79844e268dc574a4014da429e00f7
font_01_sfnt_off00010a5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A5C 11336 bytes
SHA-256: d26dffe6bc37d28ae60662788cf7ef94000a23e8d49ffddd5b267575876b5532

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