Malicious PDF — malware analysis report

Static analysis result for SHA-256 e666d93f25d071d6…

MALICIOUS

PDF

77.8 KB Created: 2021-02-28 06:52:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e78897c750a22ff6aceec9ddb5165bc8 SHA-1: 64422682d8ab87f96643c99e27eef392e89e4724 SHA-256: e666d93f25d071d612fe36d0e056fa7869f4d1d6e36650c390633ab8783d514d
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 phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, appears to be a lure related to a product manual.

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://pelibifir.ru/award?keyword=black+and+decker+iron+model+d2030+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388052/normal_5ff75dc2361a9.pdfIn PDF document text
    • https://cdn.sqhk.co/tufuboloruj/bhehhhc/video_player_download_for_pc_filehippo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388629/normal_5fd7922097128.pdfIn PDF document text
    • https://cdn.sqhk.co/xijisejes/TjghaRE/raid_shadow_legends_beginner_guide_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416495/normal_602fbd6b6f929.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368951/normal_60388d8c8938c.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/jd0iaji/bewitejazezufis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_602739ed9ec47.pdfIn PDF document text
    • https://cdn.sqhk.co/podoxato/iCgejap/65189378328.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493888/normal_5fcceb48eeee9.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/e1fcqNj/zupaxelimuletuxiko.pdfIn PDF document text
    • http://fibiver.mygamesonline.org/67160236739.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380214/normal_600512122bb41.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387243/normal_5ff3ccf6204c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_6020a8ea63e71.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
    • http://bifovigavij.myartsonline.com/the_power_of_a_praying_wife_book_of_prayers.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/zokulisuv.pdfIn PDF document text
    • http://dasobiviwadodaj.atwebpages.com/21736170550.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_off0000e5ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EA 5260 bytes
SHA-256: 6eef8241d5215f86ba505c68ca86c138ec4e21c134719300977cf5c4ea49b428
font_01_sfnt_off0000f79f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF79F 10604 bytes
SHA-256: 9897415715372c4e67baccf92d21c9d8d4aa7ace0208b40d904622311949a626
font_02_sfnt_off00011bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BD9 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2