Malicious PDF — malware analysis report

Static analysis result for SHA-256 f666e8e3f179373a…

MALICIOUS

PDF

135.2 KB Created: 2021-03-18 01:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: ab00832ad48c017cb33497bce978ee85 SHA-1: 703e257160e8d22a75f26fac4f9bf7aa3d29b20d SHA-256: f666e8e3f179373a0938333d1a3e8ef3012e86ba0b982b6cf1a644d0ed958283
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'Islamic dream dictionary pdf', aiming to trick users into visiting the external URL.

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
  • 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://maypoin.ru/award?keyword=islamic+dream+dictionary+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4427821/normal_6002a5a784028.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447098/normal_604cdf84e4c71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466154/normal_6015d9c449c7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490752/normal_6040a7fb53b1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391925/normal_5ff4dde73c24b.pdfIn PDF document text
    • http://logvoz.ru/lisemebonisejinirovupt6hru.pdfIn PDF document text
    • http://salonop.xyz/78935067286dixnu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383566/normal_5feaf3249e16b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480148/normal_605281331ab89.pdfIn PDF document text
    • http://zeropium.com/guide_d_entretien_st2su8xmz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481058/normal_5febe5c3f050e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409604/normal_6013b3511849e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405440/normal_600fb9c47d21f.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/e73253af-dad3-4d7a-b680-c8c2a4656141/wozewagewalazug.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/nuronobonuzemumixirobiliw.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/catalogue_hafele_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c997308-8ad7-418b-9fe4-754925ba06df/how_to_program_keypad_for_garage_door_opener_genie.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/dakeriv.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/soterupe.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/best_suspense_thriller_books.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_off0001d3e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D3E5 5340 bytes
SHA-256: 5e6ea1cf76ed7636b70f36f4fe49ea6681d76217f0d4121d136938bbd6b0cb8c
font_01_sfnt_off0001e600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E600 11912 bytes
SHA-256: 15bf98d32c3e198721f738a52c00ec86391c4fa8ca61f56f09fcb0f6edfb4bcb

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