Malicious PDF — malware analysis report

Static analysis result for SHA-256 cedb10bc318863bf…

MALICIOUS

PDF

596.4 KB Created: 2021-05-23 11:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ac9e5bdd392be6c92472fa9d55baf94f SHA-1: 599dc0f2ae3e9ab16f58bd05e3b0b359c1a22599 SHA-256: cedb10bc318863bf1c18c24de2f5d135a50b986c64924c723b1e74e7d3016d20
104 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. It uses an urgency-based lure. 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 0.8355

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://gimoguvi.ru/strik?utm_term=what+are+the+best+non+iron+sheets PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456135/normal_601f274ba1952.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447912/normal_5fec30e790ecd.pdfIn PDF document text
    • https://patelevikukel.weebly.com/uploads/1/3/4/6/134665122/018bb.pdfIn PDF document text
    • https://lexizade.weebly.com/uploads/1/3/4/3/134368494/3135197.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372361/normal_5fe6eaf4c7e2a.pdfIn PDF document text
    • https://laxuruvu.weebly.com/uploads/1/3/1/4/131482832/2a353563.pdfIn PDF document text
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/mepiko_xigelo.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/5a26f7f5-24b5-43a4-94c3-b9fb87b0a9e6/harry_potter_diecast_wands_list.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/japanese_children_s_books_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/062dd264-efd7-469f-9167-795f3e74a7f3/does_gretel_become_a_witch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbadfdb3-f00b-499c-b2d7-7d90e1f313eb/bapinobe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23a6bfd1-2fb7-40e4-a952-10719f82d764/nofetojokuborusa.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/sezenaze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23d8a899-f55c-4de9-8be6-36d65aa6f886/what_does_a_head_of_client_services_do.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61af0fd1-cc98-4317-b5fa-875945d9257c/49812092212.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/retopuxokowitaxokizasaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aea63f1d-0a03-478a-8022-a1b998c9549f/89096018590.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/bazusenelixaxusudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb3b4273-8c04-4ab3-bdb4-eb610898b521/67747456418.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/blues_ideology_and_afro-_american_literature.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 6

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_off0008f6c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6C0 4680 bytes
SHA-256: dce7eca5e8335d61de8dcc620fb45adc4cef266680c2997ed535ec99d7b351bd
font_01_sfnt_off000906ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906AC 12456 bytes
SHA-256: 0e554b9b9c369578f8f648e82212f2bf06f5d43eeb98a89d919428ebcf781556
font_02_sfnt_off00093092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93092 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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