Malicious PDF — malware analysis report

Static analysis result for SHA-256 045a007c1ee32cf6…

MALICIOUS

PDF

66.4 KB Created: 2020-12-03 20:50:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 211098d6b859a9c9f79ad1267ce7d7f4 SHA-1: 6a36aa3909923e254e0c8e1b16a92956a1626866 SHA-256: 045a007c1ee32cf6de733a9ed944f920f3f74892c6adbbed746550402695adbb
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 0.9998

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://trafffi.ru/strik?utm_term=panorama+del+antiguo+testamento+paul+benware+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368997/normal_5fc76fe9657ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383149/normal_5f8bbdc73f3ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4440a8ac-2ccc-49d0-afd5-b65436de47f2/pinkel_salary_missouri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e85fd77-4af8-449d-8945-5d3dd758d5a1/98764100324.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5227e9d4-96cd-46ac-925c-8493a7531eda/ace_check_cashing_hours.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52c9311f6a41984a1865c/t/5fc5fbf32dd96f5918bb085b/1606810612920/84975342957.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b669826-67c3-4515-b003-f54c704f3212/64241533989.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/chirutha_cinema_audio_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/53963558634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e1bb65d-3dbd-423d-a617-7ce034bd0d36/segeremujedebofadegisazu.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/sifemalan.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/59318620962.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3bfafd3-7e87-43c4-8d42-5b4a5bd2de3c/elite_dangerous_combat_tips.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/munofozebapofikutuw.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB000 5592 bytes
SHA-256: 78d55cffaf2b21e1f9bb2c07c2db3466f4c25da913e6ccc67eb9c8ae9d8826cb
font_01_sfnt_off0000c2fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2FC 10376 bytes
SHA-256: ea2fb423bc7ca1c3e10122197a011fdde47905938a92c69e0f29519d11941b0a
font_02_sfnt_off0000e514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE514 16180 bytes
SHA-256: 70ba6cfcccd4f425e5ed09ac978e0277705e9684d71f47ffd422f7abdd2ef395

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