Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8571c189b67fa60…

MALICIOUS

PDF

89.0 KB Created: 2021-05-06 06:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7760d252b7f43c90aba7b541d88bd2c2 SHA-1: 9930a577efa8da4af4b78eae0463b84305f7fc48 SHA-256: f8571c189b67fa6028e9326469fa2160bf28ad6b72fac6b37b6f593bba3d1131
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection profile point to a phishing lure designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://fokemale.ru/strik?utm_term=ccnp+route+dumps+2019+pdf
    • https://cdn-cms.f-static.net/uploads/4420934/normal_60280ce6d9b73.pdf
    • https://nuzewive.weebly.com/uploads/1/3/1/1/131164046/cd601836a.pdf
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/5576007.pdf
    • http://xoxuvajes.mywebcommunity.org/63850917762.pdf
    • https://zukodefikarux.weebly.com/uploads/1/3/4/4/134498552/2789872.pdf
    • http://jidapuxedepu.medianewsonline.com/poxaji.pdf
    • http://tuxesimufimiti.mypressonline.com/bach_cantata_150.pdf
    • http://g2am2e.xyz/should_teacher_be_capitalized_in_a_sentencep7hdc.pdf
    • http://godotobekof.scienceontheweb.net/samsung_galaxy_tab_2_7_inch_battery_replacement.pdf
    • http://dabinepoj.mygamesonline.org/94430881761.pdf
    • http://rowomonug.mywebcommunity.org/zetuvumofakorenavifawek.pdf
    • https://kogozodibivuf.weebly.com/uploads/1/3/6/0/136094397/govosipu.pdf
    • http://fuxanujibiz.mygamesonline.org/wilderness_survival_training_texas.pdf
    • http://xeratigike.medianewsonline.com/43436867222.pdf
    • http://fibaxoxadomi.sportsontheweb.net/bitukajamo.pdf
    • https://cdn-cms.f-static.net/uploads/4365646/normal_604069aa2f2cf.pdf
    • http://pubofumoxo.scienceontheweb.net/wordly_wise_book_7_lesson_5.pdf
    • http://tdsevsvet.ru/commodore_64_roms_download_freeslx3f.pdf
    • https://cdn-cms.f-static.net/uploads/4369788/normal_604f5a8bb7f1b.pdf
    • http://vasizazesunof.medianewsonline.com/human_circulatory_system.pdf
    • http://exemplpusj.com/22045896173gy9ou.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://xusapibu.onlinewebshop.net/where_is_the_product_key_on_my_acer_laptop.pdf
    • http://revudipepofaten.myartsonline.com/72756990822.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_off000106af.bin
03598d72c168c316371122a42ada47b946e9a5fab9ded239f99e8c42c389d729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106AF 5396 bytes
font_01_sfnt_off000118e8.bin
5d18991661b6983e281399fd09bff50250a6d993a467ad694ffd4501ff12d2d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118E8 19000 bytes
font_02_sfnt_off000148ad.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x148AD 4324 bytes

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