Malicious PDF — malware analysis report

Static analysis result for SHA-256 250779362ec2408e…

MALICIOUS

PDF

77.4 KB Created: 2021-03-17 21:46:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fb99f8cc08fea20121093e08c634455 SHA-1: 4a0a7bed929742dadabc92cdc6f16cc344a84e54 SHA-256: 250779362ec2408ea88035322fc894a0cb9015590313671366be7b3e408e2a6d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/strik?utm_term=how+to+make+bob+evans+mashed+potatoes+better
    • https://static.s123-cdn-static.com/uploads/4498882/normal_5fcaaa6ded5fc.pdf
    • https://static.s123-cdn-static.com/uploads/4481272/normal_5ff764b4ee111.pdf
    • https://cdn-cms.f-static.net/uploads/4408482/normal_604173b8c6300.pdf
    • http://gakagebir.mypressonline.com/the_captive_prince_summary.pdf
    • https://static.s123-cdn-static.com/uploads/4462694/normal_6000be4d31006.pdf
    • https://cdn-cms.f-static.net/uploads/4460446/normal_60279604df9c7.pdf
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5fda139bbcd25.pdf
    • https://static.s123-cdn-static.com/uploads/4425217/normal_600355c0656dc.pdf
    • http://xorabawik.medianewsonline.com/chemistry_data_booklet_a_level_edexcel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://ac65beef-1c88-4b01-a948-251493ed82f2.filesusr.com/ugd/09857b_f09cbc27c0134f70838cf69c159daf2a.pdf?index=true
    • http://pabewuvuxaf.onlinewebshop.net/reliable_change_index_calculator_excel.pdf
    • https://e20d271a-53e3-41f9-9180-d6cd5f9fd148.filesusr.com/ugd/6cfc61_f3ed2f88f3764d869b03852e5744ef77.pdf?index=true
    • https://354df738-7a8c-4643-bdcd-aa58f7c4bd0c.filesusr.com/ugd/69cf62_bb51e5f7fb96413b8b146e60b87e6c45.pdf?index=true
    • https://s3.amazonaws.com/waxapoz/lizosewif.pdf
    • https://s3.amazonaws.com/daxemo/chak_de_india_full_song_mp4.pdf
    • http://nekelaxowe.atwebpages.com/74629336356.pdf
    • https://8137cd1e-393d-4948-8193-eca935452849.filesusr.com/ugd/756799_902b134e70ea4f13a91e193a6149090d.pdf?index=true
    • https://s3.amazonaws.com/rebesudanolo/gogokasis.pdf
    • http://godusisoti.onlinewebshop.net/9658952804.pdf
    • https://s3.amazonaws.com/remuv/27780704160.pdf
    • https://s3.amazonaws.com/fapaga/chemical_reactions_and_equations_lab_10_answers.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0ee.bin
9fefc83d43106cd10391909d1e560564247455786648d1d72d82a7e5f438a11d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EE 5484 bytes
font_01_sfnt_off00010376.bin
6b8d1da1f42a9123e04585ed54c67d9e8e3be9084f3a15a53e14b55bab6b77bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10376 10724 bytes

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