Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce867b32f5fef0d…

MALICIOUS

PDF

73.1 KB Created: 2021-03-27 21:05:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76b3f73e0f4f1e43eeae8c45f40ebaf9 SHA-1: 1b38782b84a59940b11aa108ed3971de18cb471b SHA-256: 0ce867b32f5fef0db25450e2e1882f5ffb100b4b7dca9cca5d5ae7c7e9af094e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and multiple other URLs are present within the document, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URIs and the overall detection suggest it may leverage PDF vulnerabilities or JavaScript to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://golowaki.ru/123?utm_term=video+bts+not+today+dance+practice
    • http://omerkatanalp.com/investment_property_spreadsheet_template_australiahttxu.pdf
    • http://tosety.xyz/sipogadozadivonedsqlki.pdf
    • https://vamabeloketofip.weebly.com/uploads/1/3/4/3/134344852/gowove_sezoriv_pixejijarewetag.pdf
    • http://viruxego.mygamesonline.org/7435676288.pdf
    • http://devicesprotectionforusers.site/27971598862dpyfx.pdf
    • https://vulodimov.weebly.com/uploads/1/3/4/8/134880101/lojuwevi.pdf
    • https://melekutiruj.weebly.com/uploads/1/3/2/7/132740408/a6c225c116fe0.pdf
    • https://static.s123-cdn-static.com/uploads/4374708/normal_5fe1f517b6f31.pdf
    • http://gufutaca5.xyz/el_evangelio_apcrifo_de_judas0zljd.pdf
    • https://cdn-cms.f-static.net/uploads/4392658/normal_603a5703e4acf.pdf
    • http://nubatevujonuw.mygamesonline.org/becoming_a_supple_leopard_version_franaise.pdf
    • http://tafuxasomup.getenjoyment.net/trumpet_scales_finger_chart.pdf
    • https://gamiwejejorar.weebly.com/uploads/1/3/4/4/134498461/revosurubot.pdf
    • https://zudiwimuda.weebly.com/uploads/1/3/1/4/131438079/dorigidagopa-jabuxugiponifox.pdf
    • https://cdn-cms.f-static.net/uploads/4421627/normal_5fd6643f8eff6.pdf
    • https://cdn-cms.f-static.net/uploads/4416319/normal_5fdba3ebeb157.pdf
    • https://wubenigulusetib.weebly.com/uploads/1/3/4/7/134712949/kuvemugoxuxu.pdf
    • https://cdn-cms.f-static.net/uploads/4374181/normal_604cd12f4df40.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zasepo/66155324051.pdf
    • https://s3.amazonaws.com/fekife/dsssb_answer_key_post_code_8_19.pdf
    • http://tikomiwewo.atwebpages.com/zumojazep.pdf
    • https://s3.amazonaws.com/xeruxaxer/ap_lang_rhetorical_analysis_prompts.pdf
    • https://s3.amazonaws.com/posaxugidut/64189282827.pdf
    • https://s3.amazonaws.com/dugibabafod/50327170388.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1da.bin
4b8f468d5c4fe8bbd9ccb3d416195d344674dec1ffd9628006cdfbed25afffbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DA 5032 bytes
font_01_sfnt_off0000e2fb.bin
2f43ccb1b39685cca6ce3b97494a1062d597042aad20fef34370cf885116aea1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FB 10604 bytes
font_02_sfnt_off000106ec.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106EC 4324 bytes

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