Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85f03864af81069…

MALICIOUS

PDF

227.9 KB Created: 2021-03-24 19:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84a048830f415ad6285d9ee47319ec84 SHA-1: 6b89dd6b70d73f6ac5968c1cad3fae317fe47cdd SHA-256: e85f03864af81069a3628917d7a187048e9c368a6e0033db8a4e29e07ad728fe
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'ponafet.ru/award' suggests a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and the nature of the URL indicate it's likely designed to trick the user into downloading a further payload or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9838

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://ponafet.ru/award?keyword=afacerea+dreyfus+pdf
    • https://fimetopim.weebly.com/uploads/1/3/4/3/134399480/c9804238ff8.pdf
    • http://sokolov.fun/gekinevudubix2zkc.pdf
    • https://wivixape.weebly.com/uploads/1/3/4/8/134897282/3942934.pdf
    • https://cdn-cms.f-static.net/uploads/4417422/normal_602b43494e7f1.pdf
    • http://shopmzm.site/bedirel97kn.pdf
    • http://creditscoreusa.info/whatsapp_free_laptopshzp8.pdf
    • http://trokot-newshop.online/listening_skills_worksheets_for_grade_2klr27.pdf
    • http://sun-italy.space/88563928124bf5y0.pdf
    • https://cdn-cms.f-static.net/uploads/4463809/normal_60162534b24ac.pdf
    • https://static.s123-cdn-static.com/uploads/4480145/normal_5ffc0f2d0c0dc.pdf
    • https://rikinosi.weebly.com/uploads/1/3/4/3/134352476/ruxijigedaniwu.pdf
    • https://sowafumo.weebly.com/uploads/1/3/5/3/135309866/sawelilapipanuse.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jotizifime/kevegakij.pdf
    • https://s3.amazonaws.com/punurum/vajusojugolidogujuzizode.pdf
    • https://8de17e8c-b43d-4143-985d-773a0aa332b1.filesusr.com/ugd/01f6ad_875fd93fb9464857b8e61a172df8245d.pdf?index=true
    • https://944456f3-75eb-4cd6-bbfd-656b3713ada1.filesusr.com/ugd/2c8d66_2500d3439668467ea908c2648198ce9f.pdf?index=true
    • https://8eb0ff2f-1b5f-41fb-a82b-bf279dc7f43e.filesusr.com/ugd/868f76_b1b73fabf3cf433eaca5be9d5af03f39.pdf?index=true
    • https://12c48f50-3553-44c7-a31c-19fc5df83d07.filesusr.com/ugd/7e0eb0_b6d4d9a179e047f5bb7582f58492b5df.pdf?index=true
    • https://8569cc17-8b2a-4187-ace0-95b0550b99f0.filesusr.com/ugd/d6eede_cc92c177fead4808af82889e48fa0926.pdf?index=true
    • https://s3.amazonaws.com/rodakarugupoko/annelids_online_battle_hack.pdf
    • https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_6deb7fe46dfc49ebb211abb035dc0b87.pdf?index=true
    • https://3e1d1bad-f645-4ebd-ac75-469e7ff7c972.filesusr.com/ugd/e745be_07723b7c9dc1433b9a17a9fb20c80f49.pdf?index=true
    • https://2a085669-a8dc-40eb-b1d3-71ea9d660f60.filesusr.com/ugd/cafc24_5824b20c13e547c29229e78c32e2054d.pdf?index=true
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000325ce.bin
8e11dee5fa76bab7c8ce6adba451f6114891f80561b8b65c2973314d6070ad71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x325CE 3936 bytes
font_01_sfnt_off000333ae.bin
7963d43b1a36d8c89b06891e1ad425872c95b737afb6fddc88537cd19ab52f59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x333AE 4744 bytes
font_02_sfnt_off000343df.bin
77a12cc2691158d29874c6d90591a18c0b4f00cdd6c47ead1dc51b55096cb4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x343DF 15008 bytes
font_03_sfnt_off000372cb.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x372CB 4324 bytes

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