Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1a5709f16b2938…

MALICIOUS

PDF

72.1 KB Created: 2020-12-23 18:09:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0e12f14878a200e032b42189cf28f50c SHA-1: 11c99e32214bf8d512c25995f90ffe58609d7542 SHA-256: ed1a5709f16b2938149c156a32802cf7129698e1bddac9497b1fec6a852f8c50
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/strik?utm_term=tropico+de+cancer+libro In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413567/normal_5fda3885bdbfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393763/normal_5fbe87ba99ef5.pdfIn PDF document text
    • https://cdn.sqhk.co/rejinujo/EMhd5NG/46012551220.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422145/normal_5fc342ecc0229.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://uploads.strikinglycdn.com/files/9e450a24-7222-4f9f-8c14-23fc44b8ba53/jowanib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9b29e27-7180-44bb-a34c-1ec65da4c404/fisalarewukexipulawalu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77f6c95e-c972-46c7-b9e5-f1b53d3b1020/gobumoxidavowilaxiregezu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa5740bd-0b75-4ebe-920a-97ddbed60de1/kinuwejegu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fafc1c37-3bba-499b-866c-b7272718fa0b/mewusixatunikuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1720bb83-5226-4486-891c-ecb0aeedd8ce/8464861116.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a22572d3-6083-4733-aabc-448e05a274b7/90182823333.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7fc9242-c76f-4ee6-bb4f-ac83ff33a0af/pilugusoloduj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d338ef3-08f2-4223-9768-cf3180254e64/kasugavuxagasaku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae59e5ab-c33f-4113-99f5-34d3704f13a6/garulinafakubawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7475c9f0-2eb7-41f6-bbde-e864813a34ff/42768559076.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_off0000d232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD232 4688 bytes
SHA-256: d418cda5c127eb982569797cc24d8d112ccf279e1c7a6c4ab4bac438bc543d94
font_01_sfnt_off0000e20d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20D 10592 bytes
SHA-256: c062797995c45f31b33abc136832c5b16441d27904d394aa288d96650d02a854
font_02_sfnt_off00010573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10573 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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