Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc3ccffc28b2cde…

MALICIOUS

PDF

80.1 KB Created: 2021-03-16 05:08:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 46c56674c0a034385e5b620557567aa7 SHA-1: 542a2a2e383d47f4ff4874c1f1ca16c1e2e5dcbd SHA-256: fcc3ccffc28b2cde997df6a90fd714b0b00a98ebfb200006839460a49eb39921
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL, identified as a phishing lure. ClamAV and ML classifiers strongly indicate maliciousness. The PDF structure and embedded URI suggest an attempt to trick users into clicking a link, likely leading to further compromise.

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://leonvi.ru/award?keyword=akuntansi+pajak+penghasilan+pdf PDF link annotation
    • https://sixutaxujarupi.weebly.com/uploads/1/3/4/8/134882582/ledelevunilideruto.pdfIn PDF document text
    • https://zemaxixose.weebly.com/uploads/1/3/4/6/134636511/gogezekoje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473656/normal_60301c4d9c9eb.pdfIn PDF document text
    • https://tusosalowikos.weebly.com/uploads/1/3/1/4/131453146/tonawavezazijalapi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448719/normal_60438695025d2.pdfIn PDF document text
    • https://cdn.sqhk.co/wevavagu/aCSENjh/firelilip.pdfIn PDF document text
    • http://gofadivus.mygamesonline.org/jzyk_angielski_sownictwo_c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369933/normal_6002bafc887c8.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/ncjahcP/classic_kong_snes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://dejibokakar.onlinewebshop.net/3904358646.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/sudoku_medium_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/wordscapes_level_116_arch_4_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/ups_air_waybill_form.pdfIn PDF document text
    • http://lexamokoxerum.atwebpages.com/sipuwufepavafuvadovuwo.pdfIn PDF document text
    • http://lamupimifuban.onlinewebshop.net/what_can_alexa_do_on_fire_tv.pdfIn PDF document text
    • http://fazaburifug.myartsonline.com/dagejova.pdfIn PDF document text
    • https://78905da9-dd21-4190-abaa-c894c042e703.filesusr.com/ugd/851c7c_b8d733ed6b1d47638a6b9c18874be951.pdf?index=trueIn PDF document text
    • https://ab25a8b3-4d80-4d4b-93a1-c1347014fa7c.filesusr.com/ugd/8d0191_035946dcfc894feeb0cedec673ada0e3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/whirlpool_cabrio_platinum_dryer_stopped_working.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0A 5108 bytes
SHA-256: 7acccfe4c4f490a5e345101dd61131201701e46c063e80b97db5ff0315c6e479
font_01_sfnt_off0001006d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006D 10980 bytes
SHA-256: 48e1624e8c20ee100a517fe723de536a93ce5dcc5a37b9781fccee67e4bf2d7d
font_02_sfnt_off00012566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12566 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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