SUSPICIOUS — free-roblox-accounts-with-robux-2021_GM431946152.pdf

SUSPICIOUS — free-roblox-accounts-with-robux-2021_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (56/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: da4e5d1bc7543566c2c7bb008ed0c16802cd5130046c1fec650ae400057bdf04
• SHA-1: 8d4b3c1a37a7dce09de7862dc21d5b831765e7af
• MD5: a21593c52e486dfda8c979a576fba814
• ssdeep: 768:ywdfMEg49oUn74n5smdAdxz+rZeb7DQeavwdM6hhfU8oUEecBZK8Wxim:V0EuRHOd+rZebdavSM6hF+UEbZK8Wcm
• TLSH: T18D349DF7059BCC4CB68E4F43DAB6349D78D9D68D2221EA8494C8362CC06C7ED6B21671
• Submitted as: free-roblox-accounts-with-robux-2021_GM431946152.pdf
• File type: pdf · Size: 53128 bytes
• Verdict: suspicious (56/100)

Detections (4 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Microsoft Defender: Trojan:PDF/Phish.CFN!MTB
• Emsisoft (Emergency Kit): PDF.Spam.Heur.2
• Trellix Stinger (McAfee): PDF/Phish-TWM!A21593C52E48

MITRE ATT&CK

• T1112
• T1105

Why this verdict

The suspicious score of 56/100 is the fusion of 6 weighted signals:

• Embedded network infrastructure: https://netcdn.xyz/app/431946152/free-roblox-accounts-with-robux-2021-game-hack, https://min2mojokerto.sch.id/__statics/gudangsoal/files/_GM479516143.pdf, https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.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
• Contacted 18 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
• Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9599 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• searchapp.bundleassets.example
• to-do.office.com
• inference.location.live.net
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• 250.255.255.239.in-addr.arpa
• 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
• 252.0.0.224.in-addr.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
• desktop-hsgcbep
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\5888a59963b911572a4701f48b72135f.png - d4b1f0ce5be8b1be32cc25809a0a7117b5e439de9ac2033c7b4b176b571dda71
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 5c4e5c7dfe0cef605e0901e4edeb5ad46f4fa2358e60eea1cf962a42505f6660
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://netcdn.xyz/app/431946152/free-roblox-accounts-with-robux-2021-game-hack
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/_GM479516143.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-robux-no-verification-required_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/robux_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-spin_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/minecraft-wurst_GM479516143.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/krnl-download_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/roblox-printables-free_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-pin_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-village-cost_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/claim-free-robux-button_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/how-to-log-out-of-coin-master_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/coinmasterfreespins_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-online-without-human-verification_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/daily-free-spin-coin-master-link_GM406889139.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdf
• https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-exe_GM406889139.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• netcdn.xyz
• min2mojokerto.sch.id

Embedded IP addresses

• 172.172.255.216
• 20.165.94.63
• 135.232.92.34
• 20.42.65.93
• 52.110.12.10
• 74.179.71.159
• 4.247.188.233
• 135.233.45.221
• 20.247.184.197
• 52.123.128.14
• 40.99.133.210
• 104.46.162.231
• 74.179.77.204
• 52.123.252.247
• 72.145.35.111
• 149.154.164.24
• 4.230.171.124
• 149.154.167.99

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report