MALICIOUS — roblox-screensaver-free_GM431946152.pdf

MALICIOUS — roblox-screensaver-free_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (86/100). 5 of 50 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: 921b8928b801f36525106a75068ed0fcae247c18662e8eea6f61db24dca15b83
• SHA-1: 0367581606ac2ab7950f2dbb4356f715343d6c82
• MD5: 7f114e9f2832e79b465f2b28898808d6
• ssdeep: 384:rd0gUHb1MyPW1sf2XRjguhsMOCBRpQ2rOWhppx4/cH4CUSK+Iud2QSygB1mQ8IOu:B0gk1NMskWqdxIiIudSdBcQ85xA
• TLSH: T1912F6BF35293CC4CAA4F8F43AABA26AD75C9D7CC6172CE0091D8362C946C5AF7B11521
• Submitted as: roblox-screensaver-free_GM431946152.pdf
• File type: pdf · Size: 35220 bytes
• Verdict: malicious (86/100)

Detections (5 of 50 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Microsoft Defender: flagged
• Emsisoft (Emergency Kit): PDF.Spam.Heur.2
• Trellix Stinger (McAfee): PDF/Phish-TWM!7F114E9F2832
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1112
• T1105
• T1566.002

Why this verdict

The malicious score of 86/100 is the fusion of 7 weighted signals:

• Embedded link rated malicious by URL analysis: http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/make-a-free-game-like-roblox_GM431946152.pdf - network signal, weight 0.70, confidence 0.80
• Contacted 15 external host(s) at runtime (2 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded network infrastructure: http://netcdn.co/app/431946152/roblox-screensaver-free-game-hack, http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/boing-arroe-free-roblox_GM431946152.pdf, http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/make-a-free-game-like-roblox_GM431946152.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9660 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• searchapp.bundleassets.example
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• desktop-hsgcbep
• ntp.ubuntu.com
• 250.255.255.239.in-addr.arpa
• desktop-hsgcbep._dosvc._tcp.local
• http://www.msftconnecttest.com/connecttest.txt

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\d5811bb7acef9c1b8f423d3c3dc7b45c.png - d0ad8aa0031eedbd3506b24898e90b20a109af0924844c685125dd940685508e
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - b09bd152db939b42e54c886f24ca2bfc2728993f4ede10dbc6207d438cc2bf80
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://netcdn.co/app/431946152/roblox-screensaver-free-game-hack
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/boing-arroe-free-roblox_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/make-a-free-game-like-roblox_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-minecraft-servers-to-join_GM479516143.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/robux-free-online_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/rbl-gg-free-robux_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-robux-earning-sites_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-robux-giveaway_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-roblox-premium_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/how-to-hack-robux-with-cheat-engine-63-2021_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-items-roblox-avatar_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/roblox-cheats-how-to-get-free-gear_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/roblox-number-for-free-robux_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/is-there-any-free-ways-of-getting-robux_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/hex-number-gives-free-robux-2021_GM431946152.pdf
• http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/dimonds-hack-roblox_GM431946152.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com

Embedded domains

• netcdn.co
• elearning.man1konselkonda.sch.id

Embedded IP addresses

• 4.230.171.124
• 52.110.12.16
• 135.232.92.137
• 52.230.60.54
• 135.233.95.144
• 57.155.101.212
• 52.110.12.54
• 135.232.92.34
• 20.76.201.171
• 203.26.79.13
• 52.123.252.215
• 52.123.129.14
• 92.223.78.30
• 40.103.64.242
• 74.178.76.44

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report