Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0328fa770b96689…

MALICIOUS

PDF

79.1 KB Created: 2020-11-13 17:15:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e63272ce9efa6e219da3d0035e3ba81f SHA-1: 96466ae4cb3695f839899f3f0b9681d6b2e5a7c2 SHA-256: c0328fa770b96689dac474a502a0609e1ff46bcb486e1d79a5cf4a9618af8aa0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://trafficel.ru/123?utm_term=lafayette+high+school+ga PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369655/normal_5f87d79f1eaa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383915/normal_5f9f04aed720d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490244/normal_5fadc09c87879.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393502/normal_5fa8d70c1a0a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f9088069f7cc.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://s3.amazonaws.com/vukusa/order_of_planets_closer_to_the_sun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5e845f3-8752-417a-add5-fa89e7bfb0f0/words_with_the_same_beginning_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/jadoxifazisubibawetar.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/free_filipino_movies_2020_full_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/85659035133.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4419b50b-1e78-4786-b0fc-d3043e9817d7/how_to_embed_a_in_squarespace.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/hc_verma_geometrical_optics.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/kingdom_worksheets_grade_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34647bc2-7959-46b5-b75d-270351118f6b/android_tv_apps_mod.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB62C 4772 bytes
SHA-256: b64aad6535fc4aa9a054aab1a57909a626ea7b0ad3ab5e076f8aed55e962c521
font_01_sfnt_off0000c683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC683 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off0000d1de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DE 2508 bytes
SHA-256: 354e3a56cb5b6a23d1b5168dc51fcc6be9009b9832cdc5d8cfc36a682a9dca4e
font_03_sfnt_off0000dc3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3F 10956 bytes
SHA-256: b1aef28ae11f472379ad71a7ed832bf1dd349531168d976ccecba59fd9e69d0b
font_04_sfnt_off0001012b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1012B 16728 bytes
SHA-256: 0b9178f6e6faef36dd050f1df3ab49b1718187c9b021d2a481e70252aed46f5a
font_05_sfnt_off00011858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11858 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
font_06_sfnt_off0001260b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1260B 1736 bytes
SHA-256: 0d9b6ab0354368cdfa5a4e52e4dfb250ede80cec4283e48fafec0a3c1c1d30df

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