SUSPICIOUS — can-i-have-robux_GM431946152.pdf

SUSPICIOUS — can-i-have-robux_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (68/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 29620493d6e2dc34c9f6e609d604b990b500fba31d785f20b4fff42ab682e1c9
• SHA-1: 58ecd78efa59da68d7717cbb19fd5a4c8f3b5486
• MD5: 0a6a4ce1297406020ea226184a100b84
• ssdeep: 768:aHLF8BWApslRBnhe9oY9AEzWW1sz+S2CE3Phbllq5gXy:QR8BqljwoAAEd1szX2JJbllWgXy
• TLSH: T1E031AEF7A14BCE08654B6F03D1E61465316882CD30628AB496D5377CC8396FEAB60F72
• Submitted as: can-i-have-robux_GM431946152.pdf
• File type: pdf · Size: 39451 bytes
• Verdict: suspicious (68/100)

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!0A6A4CE12974

MITRE ATT&CK

• T1112
• T1105

Why this verdict

The suspicious score of 68/100 is the fusion of 6 weighted signals:

• Contacted 11 external host(s) at runtime (2 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded network infrastructure: https://netcdn.xyz/app/431946152/can-i-have-robux-game-hack - 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 (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9559 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
• desktop-hsgcbep
• 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
• ntp.ubuntu.com
• 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\SumatraPDF-settings.txt - f9ce789a10b6bac173b8332792254c83397da7acc1166a08b7c502f58f21325b
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\5612618ce4a5db2d3a8be3603eeaddfa.png - 4bffae3f30c1188ed4cc9b6b75082f760a021ea93b10bedd6f94c90eace61730
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://netcdn.xyz/app/431946152/can-i-have-robux-game-hack
• 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
• http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787467549&P2=404&P3=2&P4=gGdJXGKlK1fg41Pv%2bG%2bpo6Vn%2bgOfyXeGY34%2f3MvE1sUWj6xYqBe8Cpw7PNl2P12TwSH1QU%2fpzsdVYmDBgd2rhQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

• netcdn.xyz

Embedded IP addresses

• 20.42.73.28
• 162.159.142.9
• 13.89.179.15
• 52.230.59.222
• 52.110.12.26
• 20.165.94.46
• 4.230.171.124
• 20.165.94.54
• 85.210.196.11
• 52.123.129.14
• 203.26.79.13

File paths

• S:\Lc

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report