Malicious PDF — malware analysis report

Static analysis result for SHA-256 70bd528a7f68b43c…

MALICIOUS

PDF

78.1 KB Created: 2021-03-30 03:10:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bd10c192dce1317d2a0fae95ad536284 SHA-1: 5df14dfc6116612dbb8cacfccf9d73f1c9f7f59b SHA-256: 70bd528a7f68b43c65f9fbe05e6c8813be13cc5ef5c9302ec5055314a69c3b19
96 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 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 0.9998

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://seumenha.ru/strik?utm_term=what+does+picking+up+dog+poop+mean+in+a+dream PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485813/normal_602293f3e5031.pdfIn PDF document text
    • https://varavedonenen.weebly.com/uploads/1/3/4/3/134316352/6477819.pdfIn PDF document text
    • https://cdn.sqhk.co/xibetevoxaj/ficEgfw/fifuzawexebagatunax.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/uhiJ2gg/highway_to_heaven_season_5_episode_2_cast.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484812/normal_6037de4dd3175.pdfIn PDF document text
    • http://nefozufovi.scienceontheweb.net/85739139020.pdfIn PDF document text
    • https://cdn.sqhk.co/batovafakupo/hugdhcH/ice_cream_cone_cupcakes_waitrose.pdfIn PDF document text
    • https://saxenivimagi.weebly.com/uploads/1/3/0/8/130813604/e48710c5ab.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/jihe1ji/tobifuvijimejoxogimupotuw.pdfIn PDF document text
    • https://cdn.sqhk.co/sukonazukuv/4gdbgiq/chat_alternative_pro_apk.pdfIn PDF document text
    • https://muwewixobajigu.weebly.com/uploads/1/3/4/3/134312624/buzemedegiwimu-ralamozafa-xuderafatupabag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pogolo/bexinigidesubevotusugipif.pdfIn PDF document text
    • https://85377554-d84f-42a6-a955-c87f7d5d3d8c.filesusr.com/ugd/dd4472_90b14d35f4ab4945a33c850058f1ed8e.pdf?index=trueIn PDF document text
    • http://taberadajip.atwebpages.com/20443153577.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/87990165501.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/who_invented_the_kinetoscope_answers._com.pdfIn PDF document text
    • https://d525ee04-2a40-494f-8ba9-fee52f7b18ee.filesusr.com/ugd/8b8e24_7d4c09b246bd4dc39fbc2d7e0a8c8be5.pdf?index=trueIn PDF document text
    • https://c3a7a64c-5591-430b-94d7-c2eadfdf3523.filesusr.com/ugd/966478_88fcaa5d31af42608e8b38ae44c67a24.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/dka_nice_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/the_book_thief_yumpu.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_off0000ee4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4E 5532 bytes
SHA-256: 10ffa92bc45ce5e1680db86ef7a4341fa16df3ef229568db9179735e43d9e867
font_01_sfnt_off00010107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10107 11784 bytes
SHA-256: 935f8037220b01050b0000e41c39a3468c7c4baded7d8a85fdcf0dfa66581626

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