Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff559baeb0149891…

MALICIOUS

PDF

73.2 KB Created: 2021-03-16 15:52:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c3345e40d919d606e9fb9493169ecb6b SHA-1: 8317498e2c32c04cd9dbbece99b0c153051bf2ee SHA-256: ff559baeb014989192b0b38be1a817e152f660e9a181879dbd172cb56b0ac44b
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it is a phishing trojan. The embedded URL, 'https://mezovuduw.ru/wix?keyword=pandora+apk+download+free', suggests a lure for downloading applications, likely malicious. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards an attempt to trick the user into navigating to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/wix?keyword=pandora+apk+download+free PDF link annotation
    • https://cdn.sqhk.co/zafowavo/ggphiiq/833_e_front_st_traverse_city_mi_49686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446030/normal_604d9cf74c8de.pdfIn PDF document text
    • https://cdn.sqhk.co/fogunivugame/gjgfqgd/fiwugidoxa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404975/normal_5ff2644970201.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489713/normal_602c854569435.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383156/normal_602dd5aec37db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469834/normal_5ff0f1d436689.pdfIn PDF document text
    • https://cdn.sqhk.co/gefisodir/gilhfxR/17906756269.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/hajhIjg/spiral_galaxy_meaning_and_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/woluzadeviv/5gzbjfu/movistar_peru_planes_chip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445115/normal_604623ece865a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462379/normal_5ff5cc3aaf878.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478669/normal_604a88060a8f5.pdfIn PDF document text
    • https://cdn.sqhk.co/liminekaj/jhbSKcS/dibexatanipemu.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxinugokas/tIhhjiA/31754377898.pdfIn PDF document text
    • https://cdn.sqhk.co/tonatozi/ivojjhe/gozesetanowavijunavedu.pdfIn PDF document text
    • http://wofirulufe.iblogger.org/40469564382.pdfIn PDF document text
    • https://cdn.sqhk.co/kevovevude/nj3hejd/the_world_of_magic_leveling_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425514/normal_601d4cde8dfab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415524/normal_6009f9fab3c13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446781/normal_601f616be7ea9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493916/normal_5fde1fbab9e25.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tesezozujib.epizy.com/free_win_7_activator_software.pdfIn PDF document text
    • http://guvipum.epizy.com/alcohols_phenols_and_ethers.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_off0000e2e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E7 5016 bytes
SHA-256: 555e0e0f2bdb7e88f5ed2c51750520acad2c589dbdcf23cb35a3d7b385d683d1
font_01_sfnt_off0000f41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41E 10312 bytes
SHA-256: bf93cca14ff73f4065028744f12aee346c82135ba078ce07e4a409802f468ecf

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