Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d9cc443b9ea56d9…

MALICIOUS

PDF

86.8 KB Created: 2021-03-22 23:30:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b5e4061448852e844c355f18745e63e SHA-1: dac2acd623d70650dae3b39e6780a57ce122c9af SHA-256: 3d9cc443b9ea56d9e6013b693f7879a3d3a6d556801fe15623865dc33f8c801d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains a lure for 'Clash Royale free gems generator' which directs users to a phishing URL. Heuristics indicate this is an MFA/one-time-code harvesting lure, consistent with credential phishing. ClamAV also detected this file as Pdf.Phishing.Trojan. The embedded URL likely leads to a malicious site designed to steal user credentials or session tokens.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://seumenha.ru/wix?keyword=clash+royale+free+gems+generator+no+survey
    • http://muzesumulel.getenjoyment.net/tafobenugovixelufixojejek.pdf
    • http://mebets.xyz/bejeweled_classic_full_apk_downloady2mn6.pdf
    • https://cdn.sqhk.co/wujakegu/vXhjheV/lebosisufuribufogax.pdf
    • http://bupimobim.sportsontheweb.net/how_do_you_fix_a_preparing_automatic_repair_loop.pdf
    • http://jolidulikan.scienceontheweb.net/xetaborodururunado.pdf
    • http://adminhalil.com/lasko_fan_tower_cleaningmjlhw.pdf
    • http://tryadasert.online/gp-419dlwsg.pdf
    • https://cdn.sqhk.co/denirinodo/ed9hbH8/pinball_free_download_for_windows_7.pdf
    • https://cdn.sqhk.co/xibetevoxaj/b9hp27U/eddie_murphy_1000_words_rotten_tomatoes.pdf
    • http://dotixomovi.sportsontheweb.net/canonical_correlation_analysis_tutorial.pdf
    • http://afracheat4.xyz/a_random_walk_down_wall_street_12th_edition_downloadoyrc5.pdf
    • http://farotosinotom.mywebcommunity.org/35979589354.pdf
    • http://gromstroy.com/mcdonalds_online_applicationiy1wj.pdf
    • http://reduslim-italy.site/rilogac9g77.pdf
    • https://cdn.sqhk.co/vopovaroxamo/LDihPbA/nolagogit.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f07eb630-23ff-4298-a1df-d7940f1ba2dc.filesusr.com/ugd/097a5b_5d1ecc056cbe4fcb85fd4ee301e0982c.pdf?index=true
    • http://molujafit.atwebpages.com/vikifapozotonabidadi.pdf
    • https://0b7b936c-93ac-4a60-9644-6ba220b934cc.filesusr.com/ugd/b4bf80_c2f6c3811e6646ab967109286d79e072.pdf?index=true
    • https://47e244ab-6b1f-4ae7-97e8-86de5b619f9f.filesusr.com/ugd/e1d12c_9fea05ec83ad48dc9a059015864757e7.pdf?index=true
    • https://d4180a97-8dd0-4bf1-9e2f-d1b128d1a64d.filesusr.com/ugd/ae059d_5b51d7495f2748beb24313254bd8576e.pdf?index=true
    • https://8a6b9437-e7f2-49d7-8c24-351b272aa67a.filesusr.com/ugd/b18e4d_5bf2a0be8a4e4ed08dc13440cc9293fe.pdf?index=true
    • 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_off0000f1cc.bin
cb5c8c6405a97e289a1d37fd8f3fa0fb9a9e5cd02c3f475be668e5c7f8c23a8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CC 3312 bytes
font_01_sfnt_off0000fdad.bin
6cb959c23c121579c5f60a470bc147885abacb35f31b5584db2b2b9f371e3868		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAD 5248 bytes
font_02_sfnt_off00010f68.bin
ee475f11903c68d4f4df770f238965b764c17fdc1587bbaf22918afa0b8759ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F68 12076 bytes
font_03_sfnt_off000136f0.bin
aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x136F0 16312 bytes

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