Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe5fdb0ed55b78a0…

MALICIOUS

PDF

79.1 KB Created: 2021-01-06 11:23:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: abb92285f168fa5218d720388db8a461 SHA-1: 684de26c544281c0a5fb6a2acd495da627161c05 SHA-256: fe5fdb0ed55b78a0d3f5c2bf16feee1b260eda24be92df8f6d8addfae0252ad0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into visiting a malicious site, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffnew.ru/aws?utm_term=martyrs+full+movie++720p PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374859/normal_5ff4b93291343.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421200/normal_5ff5054391796.pdfIn PDF document text
    • https://ranibifuvif.weebly.com/uploads/1/3/1/3/131381542/3f7a4d.pdfIn PDF document text
    • https://cdn.sqhk.co/mapelimujeku/D8hidji/kpop_groups_list_male.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408713/normal_5fe9e76ae7c1a.pdfIn PDF document text
    • https://cdn.sqhk.co/xafiguzi/jb0ctsN/76920202827.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/rurovikejigibu/android_phone_specs_comparison.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/gmat_prep_test_1_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/cross_my_heart_george_strait_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0331efc9-d0ae-49dd-bb36-a846eec24be5/24_7_365_original_song.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/vokinelugunofabu.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/input_chinese_characters_android.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAF 1748 bytes
SHA-256: cbcc3eba72f81e055468408c743d1b84d30ed4c476c70c07883dc83306dc8e9f
font_01_sfnt_off0000e72f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72F 5344 bytes
SHA-256: c8b1df00266fb5d009a0d2d62a4ce9096e1881fc58b33baf3b05a519410409c2
font_02_sfnt_off0000f982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF982 12028 bytes
SHA-256: b1993e1890c28df1e6305badbaa50f97e29126d3123f0a517307f7c9a5abe45f
font_03_sfnt_off00012177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12177 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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