Malicious PDF — malware analysis report

Static analysis result for SHA-256 addfc6fe91b745a9…

MALICIOUS

PDF

75.4 KB Created: 2021-06-11 08:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 342bf8589773a9a6d6ec890adbb6e12d SHA-1: cda5fbfe38e9ca95407aeff3f7a619824d99b75b SHA-256: addfc6fe91b745a9e15eecb3a1b0863515bbe4321429c8c260a262114f4e2bdd
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://cructi.ru/pbw?utm_term=vidmate+setup+free+download+for+pc PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4474169/normal_5fcc1d6a108cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424043/normal_6032b834ee441.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447878/normal_60098b6d8b4af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410679/normal_601cfe13b9dde.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385021/normal_6006554e025b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389823/normal_606c03cc49d24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460963/normal_5fda04cee3e6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373987/normal_6016ebbacc646.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492875/normal_5fef8e092fc61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422135/normal_5fc7627d2526d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465249/normal_603c549739517.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4499635/normal_60b666589f4b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381962/normal_6050059ecf776.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_601379787df1a.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://lipebejuv.pbworks.com/f/ravapipojikojamizu.pdfIn PDF document text
    • http://kirozatijawu.pbworks.com/w/file/fetch/144515886/libro_de_yordi_rosado_quiubole_para_mujeres.pdfIn PDF document text
    • http://poguvovuk.pbworks.com/f/nanofe.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_off0000daad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAD 5240 bytes
SHA-256: 6620b98f28dada32f67ee98c591153c7cb8a6b8f7dba7bf25c3f690f2ff0d971
font_01_sfnt_off0000ec77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC77 10928 bytes
SHA-256: 1b190ba977fef619f1fab7edab9e13bc5c9f395935d5ae6c653369243f063125
font_02_sfnt_off000111f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111F0 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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