Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c4e73f17ac86e1…

MALICIOUS

PDF

65.7 KB Created: 2021-01-03 13:09:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 07488f759e31cc4b57bd4f48c4715859 SHA-1: c58599215d54896dfea898ff0fced8f3539234f5 SHA-256: e8c4e73f17ac86e156532648cf417100301337b112e23417309e1b6318dbe242
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/aws?utm_term=bihadi+anpadh+hari+se+song In PDF document text
    • https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/5176418.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457311/normal_5fa860fa8826b.pdfIn PDF document text
    • https://vapurexox.weebly.com/uploads/1/3/4/8/134865026/6e887f.pdfIn PDF document text
    • https://cdn.sqhk.co/senosekagoko/0aVLhL0/vuxulawixosumotapirizuli.pdfIn PDF document text
    • https://sixodajumam.weebly.com/uploads/1/3/4/3/134311071/xipeb.pdfIn PDF document text
    • https://cdn.sqhk.co/jepogedofuz/OgeHlid/fonts_emojis_fonts_keyboard.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475379/normal_5fbc1e5352294.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/ceqhhgg/angry_birds_pop_fruits_levels.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxabofapuw/W6F1LWc/veporefiro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501770/normal_5fadc6887acc4.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/ihsAuih/najaruxasuluxexabekedaza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500430/normal_5fd269eaec249.pdfIn PDF document text
    • https://losanuritajog.weebly.com/uploads/1/3/4/7/134730792/mokeninaxu.pdfIn PDF document text
    • https://cdn.sqhk.co/wotudasigeb/HIjgihh/vinidivil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393020/normal_5f948dc57b9f9.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/0c5e2d37-e8d6-4f2d-b7a1-4dce95f265e3/need_for_speed_rivals_apk_download_for_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b43145f-e305-4c2c-b2f6-08cce21c4e87/dfo_vagabond_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c65c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC65C 5236 bytes
SHA-256: 5b521c16b5317ac7ab64f358eb703f5928482d7a7e7a71763396139adb1012c0
font_01_sfnt_off0000d827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD827 9292 bytes
SHA-256: 369473c7c2980ddccf6ff64dedc416ca0cbef8e546a609e060192fdcc76b8cf1

Open this report in the interactive analyzer, or submit your own file for analysis.