Malicious PDF — malware analysis report

Static analysis result for SHA-256 009b92282cb488d1…

MALICIOUS

PDF

86.9 KB Created: 2021-03-19 05:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d7e5d04da9b01d2e21728361d9dec05a SHA-1: 14fe3d333149e515daaff6ffb1d08983a5a2cfd2 SHA-256: 009b92282cb488d1b4a08bed822e2d8e81e2607cd841905811b545893c5c68b8
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with the primary one being 'https://zajinet.ru/award?keyword=artocarpus+blancoi+pdf', suggesting a phishing or redirection attempt. The document body, though heavily obfuscated, contains metadata related to PDF creation, and the presence of embedded URLs points towards a social engineering tactic to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://zajinet.ru/award?keyword=artocarpus+blancoi+pdf
    • https://famuvotatag.weebly.com/uploads/1/3/0/8/130813835/kivawowebajod_pudiposixa.pdf
    • https://static.s123-cdn-static.com/uploads/4418981/normal_5fe126f959e5f.pdf
    • https://cdn.sqhk.co/tupizurelir/icjdG9J/zajaxazaloterijalugexa.pdf
    • https://cdn.sqhk.co/rabataxuvax/8gdgchf/39974079225.pdf
    • https://cdn.sqhk.co/wajewukudino/iNifU0w/green_party_of_canada_definition.pdf
    • https://cdn.sqhk.co/webuzifinuno/xigjhjc/the_buttons_music.pdf
    • http://wotukujis.sportsontheweb.net/86678906289.pdf
    • https://cdn.sqhk.co/nulusezitelo/Dpgilig/87558476086.pdf
    • https://cdn.sqhk.co/sasimidiweg/qryEgeb/lorojelukefawudavinovu.pdf
    • https://kesuvovim.weebly.com/uploads/1/3/5/3/135317554/fikasepedebi.pdf
    • https://ruxikikigiligex.weebly.com/uploads/1/3/4/3/134347308/zalofa.pdf
    • https://sinemitivivofa.weebly.com/uploads/1/3/0/7/130740142/lexuzidudedijewemeg.pdf
    • https://pixamowogiru.weebly.com/uploads/1/3/4/5/134590731/9e37338.pdf
    • https://static.s123-cdn-static.com/uploads/4456372/normal_5ff56b2ed7a1d.pdf
    • https://ridijetovemeriw.weebly.com/uploads/1/3/5/9/135984977/29a828f3ae4fda.pdf
    • https://cdn-cms.f-static.net/uploads/4421350/normal_60155bf28320f.pdf
    • https://cdn.sqhk.co/zarepowake/7TolhiV/13447441618.pdf
    • http://pimesizawox.sportsontheweb.net/50077051177.pdf
    • https://dawejiji.weebly.com/uploads/1/3/4/5/134505451/86d42e860.pdf
    • https://talotemeve.weebly.com/uploads/1/3/1/6/131606578/ziwavolifobiga.pdf
    • https://cdn-cms.f-static.net/uploads/4476142/normal_6017190e60e06.pdf
    • http://gojevomarokabe.getenjoyment.net/stanley_wet_dry_vac_4_gallon_bags.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://bepolujogox.atwebpages.com/informe_de_auditoria_de_sistemas_de_informacion.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f28e.bin
34f7ba1bebac27ded91f13835687325f7f3db1360140e4ae47d7e9d00757221f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF28E 5040 bytes
font_01_sfnt_off000103a4.bin
a317b7c8947082b7d6cf53418ba1941c1f650a61eeb0c47361a4ad0187f095b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103A4 11380 bytes
font_02_sfnt_off00012aa1.bin
97d284a3855420cdbdae34860f31dacc38605590ea495453bf7f5ba3a9d42ecf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AA1 16204 bytes
font_03_sfnt_off00013fd2.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13FD2 4324 bytes

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