Malicious PDF — malware analysis report

Static analysis result for SHA-256 6057f4c8f2f10fbd…

MALICIOUS

PDF

72.6 KB Created: 2021-06-14 04:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2210342c29be655df1645d4c027b5dbe SHA-1: d24f51215c94e3ec2947f3e23723f2bfcbe3ffa8 SHA-256: 6057f4c8f2f10fbd1b9d8420b7da47ba1631ff8821b94f38ad1ad5f1aa9d7727
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely as part of a phishing or scam campaign. 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 redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://philabc.ru/pbw?utm_term=computer+hardware+parts+near+me
    • https://static.s123-cdn-static.com/uploads/4375077/normal_600660eed0aac.pdf
    • https://pegofugetil.weebly.com/uploads/1/3/5/3/135347090/996535.pdf
    • https://static.s123-cdn-static.com/uploads/4386828/normal_5fcecbaa9fd6b.pdf
    • https://cdn-cms.f-static.net/uploads/4380857/normal_6037f0a9a2d1a.pdf
    • https://jegolufu.weebly.com/uploads/1/3/4/6/134677495/1497787.pdf
    • https://cdn-cms.f-static.net/uploads/4475588/normal_60434117133ad.pdf
    • https://cdn-cms.f-static.net/uploads/4481270/normal_601700d678ea1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8b86c590-7484-4d62-a817-698e78de4da6/youll_be_ok_meaning.pdf
    • https://uploads.strikinglycdn.com/files/db667db0-cc14-480c-8aed-879c625e1e65/tekonsha_prodigy_p2_wiring_diagram.pdf
    • http://bisixakab.pbworks.com/w/file/fetch/145033164/rotate_shape_90_degrees.pdf
    • http://wotasaful.pbworks.com/w/file/fetch/144881517/prayer_walk_guide.pdf
    • https://uploads.strikinglycdn.com/files/6ae53833-d83d-48c6-a52e-aec819cf0743/numelu.pdf
    • https://uploads.strikinglycdn.com/files/10602774-a7c0-4f89-be14-beb2f96c0d4e/attack_on_titan_season_1_2_3_recap.pdf
    • https://uploads.strikinglycdn.com/files/f8c354da-3735-44bc-9688-bf2404830b40/95825510024.pdf
    • https://uploads.strikinglycdn.com/files/62ad6986-500e-4f21-b626-c5b94bde8d66/difuso.pdf
    • http://suniger.pbworks.com/f/kuxupas.pdf
    • http://xesimisejek.pbworks.com/f/40312243976.pdf
    • https://uploads.strikinglycdn.com/files/9521af88-16f0-4086-b616-e8d0c6048a1d/86875449660.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dec0.bin
24f9e693060d921735e73aaa124f55647000f7c3311484758923bf23b892f822
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC0 5164 bytes
font_01_sfnt_off0000f029.bin
8f958052cebfcd4c5ce1e4863fe4644ee66d878e41d85b1cd583a783842793af
pdf-font-stream PDF embedded font (sfnt) at offset 0xF029 10912 bytes