Malicious PDF — malware analysis report

Static analysis result for SHA-256 32801a991b45ab5e…

MALICIOUS

PDF

93.5 KB Created: 2021-05-25 12:14:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 0c6bb82f975fd704b596f03790ca94e8 SHA-1: 923106b38c0be4cb0256aa97c2411842cdb722b0 SHA-256: 32801a991b45ab5e652b81cbf12869e9a838d86d554aa233a3f6b8e5a98aedf7
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to financial templates, aligning with a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/strik?utm_term=free+financial+budget+template+excel PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425484/normal_6050fd9b587ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445573/normal_60154cf53d9e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_6063e49dc7473.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483586/normal_60566bfc70674.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/e42dc581-c18b-41e4-b31b-06f27def8545/sokezug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43145353-3dd0-402b-80de-3b0e442d6a94/42562869374.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/xipifukegox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdb393c9-447c-474d-83c2-c050acc036ce/is_contract_labor_an_expense_or_cogs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b6d246-69e5-49cc-904e-82ce538caf92/92523616562.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/xujegeven.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14d946b0-badb-4bf3-b739-db7624d3ec92/nigugojujuzasuruvadimabij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c1dd4fb-941e-43f6-a118-2d95870dd98e/27570084808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4c1dc4a-d051-4d24-94d8-b91b0c9d3bb3/61578547827.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4e08ff5-336e-4234-9f5b-81701a53393f/81850254654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c3a5e59-1e1b-45d6-b57f-0e15d72488ab/bogulorokutetu.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/how_do_i_port_my_number_to_att.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e549691a-9672-4a59-8503-fc341b3ae1ce/kawatixexinusunidavonoxep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc3c50c2-0424-4053-bdf6-67cef319b2fd/how_to_put_samsung_dishwasher_in_diagnostic_mode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/324375d6-7e36-437d-be67-654a7f69c989/dish_network_internet_bundle_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c82956fe-5d32-4711-a950-befba0952a02/cursos_intensivos_de_ingls_en_orlando_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5f09dfc-1268-4ebf-8e16-bbf58e494f2b/best_beginners_guide_to_stock_the_little_book_that_beats_the_market.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc6d7339-fee3-4b81-b9f4-0cad15afef30/vitozokixaxibupu.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_off00012d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D31 5460 bytes
SHA-256: 5d45db4e8b242cb664bdb44647e11e20a0e4b1fb5bc344ac29f2eeee3bb94026
font_01_sfnt_off00013fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FB7 11612 bytes
SHA-256: c9b8f948fed1023b508fbfd36694808bc3ddbd9635972793dab5fbbec8528318

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