Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9228f7078ac182…

MALICIOUS

PDF

61.3 KB Created: 2020-11-13 16:20:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 77ed18f86ee1ff117dbbdcbcd6373068 SHA-1: 117829cda244d10cf1fa61cec80f1d92011f34b8 SHA-256: ed9228f7078ac182357188da35469a458b952ed3b06ed8cf0bb7ae4497eceaa6
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 0.9995

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://ggtraff.ru/aws?utm_term=conversion+of+grams+to+moles+worksheet In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f8b4c003ff57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391335/normal_5fae757cabd48.pdfIn PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/fuzolugafikadeza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403537/normal_5f92c569cfb17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425915/normal_5fa2efbfcca5a.pdfIn PDF document text
    • https://samoxaposem.weebly.com/uploads/1/3/4/3/134361226/1101407.pdfIn PDF document text
    • https://kugodago.weebly.com/uploads/1/3/4/4/134491336/kuwizobub_famasazopip_zirenu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369775/normal_5f8abe98500d5.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/be3e4a33-0348-4494-9436-a8f379b70a30/namoxobo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf0af167-68f0-49d4-ab29-f6c1579c042e/wadleigh_library_nh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52a74cb4-0f1a-4a2a-8184-d63b003a7c32/kalenubilelinananoven.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59bab2cb-1d80-4218-869e-eba9ea38d6b9/2811044051.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/gta_5_mobile_apk_free_download.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA994 5208 bytes
SHA-256: a7ab6b87fdf4f93e2e713a9b5d3df22c3ad0718fa6cec0a0ffcdc1b72dfcc36a
font_01_sfnt_off0000bb2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB2F 9148 bytes
SHA-256: 642c913d66c2fc45f2cf7486c0adf3348a53af3686e528f1be5f86a5f1e25448
font_02_sfnt_off0000da64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA64 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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