MALICIOUS — 7e26cdd869706dbf4866121965d5f04544af0fc384f87a2cf9de4d53c8b28479

MALICIOUS — 7e26cdd869706dbf4866121965d5f04544af0fc384f87a2cf9de4d53c8b28479 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Vobfus family. 4 of 56 detection engines flagged it, exhibiting 5 ATT&CK techniques.

Identification

• SHA-256: 7e26cdd869706dbf4866121965d5f04544af0fc384f87a2cf9de4d53c8b28479
• SHA-1: 2da9d4fc4970950d747715d2712a50bc929da098
• MD5: 72510613460b4ebc536bcb69b8bf1f5e
• imphash: 3f1b7f007e3e1edff339abe9054b984e
• ssdeep: 768:cbn1GMQhnT591/Nq1RLaP/v/0CISor5C6Rlwibw5zVzpSt:cYBTd/NqzLaX30T5C6RlKpSt
• TLSH: T1C834B754063DC884C4B4FE671DA96E5C174E0F6BE26E981A36CF8A2D85C25739430E2E
• Submitted as: 7e26cdd869706dbf4866121965d5f04544af0fc384f87a2cf9de4d53c8b28479
• File type: pe · Size: 53248 bytes
• Verdict: malicious (100/100) · Family: Vobfus

Detections (4 of 56 engines)

• ClamAV (daily): Win.Worm.Vobfus-9763579-0
• Microsoft Defender: Worm:Win32/Vobfus.AC
• Emsisoft (Emergency Kit): Gen:Trojan.Chinky.2
• Kaspersky (KVRT): Worm.Win32.VBNA.brbj

MITRE ATT&CK

• T1057
• T1547.001
• T1543.003
• T1112
• T1105

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

• ClamAV (daily) flagged Win.Worm.Vobfus-9763579-0 (rule Win.Worm.Vobfus-9763579-0) - engine signal, weight 0.90, confidence 0.95
• 1 behavioral detection(s) across 1 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.60, confidence 0.90
• Microsoft Defender flagged Worm:Win32/Vobfus.AC (rule Worm:Win32/Vobfus.AC) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Trojan.Chinky.2 (rule Gen:Trojan.Chinky.2) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Worm.Win32.VBNA.brbj (rule Worm.Win32.VBNA.brbj) - engine signal, weight 0.55, confidence 0.85
• Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
• Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
• Contacted 3 external host(s) and 19 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
• Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

65691 behavior events · 3 ATT&CK techniques · 4 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• ns1.thepicturehut.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• default.exp-tas.com
• ctldl.windowsupdate.com
• login.live.com
• update.googleapis.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• settings-win.data.microsoft.com
• config.edge.skype.com
• licensing.mp.microsoft.com
• officeclient.microsoft.com
• windows.msn.com

Dropped files

• C:\Users\analyst\zoeve.exe - d03665f726396f0a8e2a0bd059cfa74abe6dbfecd0e7715be032b2535ef38a4b
• 8a7e23d69a34dd0a7cafd351527989f5341d86831cebd753f4e39b29ac88294f - 8a7e23d69a34dd0a7cafd351527989f5341d86831cebd753f4e39b29ac88294f
• f5d40ab3b2b6ac811d4ea80e04870134d5c534ec1875a87fc10266435d1cfeee - f5d40ab3b2b6ac811d4ea80e04870134d5c534ec1875a87fc10266435d1cfeee
• 903764134ca4764a7e73f681881f61584f7c2eb40c61c5772d238a297edb397b - 903764134ca4764a7e73f681881f61584f7c2eb40c61c5772d238a297edb397b

Embedded URLs

• 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/6c2dbffa-872a-4f74-b39c-0ab782eea5bf/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice/files/6c2dbffa-872a-4f74-b39c-0ab782eea5bf?P1=1787354299&P2=404&P3=2&P4=ElLaAGSqvHE%2fud1oOy9cHTUmePvNSsovOeUG0kb6%2bBU6%2b%2bMYS0cpPMllI2X7kLzG0p4YKwEcdFNAK2Q5UFj2GA%3d%3d&cacheHostOrigin=tlu.dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice//files/afb4c1e7-5ab6-4274-bbe6-fa4639876844/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice/files/afb4c1e7-5ab6-4274-bbe6-fa4639876844?P1=1787350513&P2=404&P3=2&P4=hPXnleCiB9KFQ4NRbqYeeghmod3YwFu3rr9u1dSWiMPau3fH8ayNmoxsXeGYw0HQYtbTaDTHKbjAVSOC%2b0lU%2bA%3d%3d&cacheHostOrigin=tlu.dl.delivery.mp.microsoft.com
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/

Embedded domains

• ns1.thepicturehut.net
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• default.exp-tas.com

Embedded IP addresses

• 4.207.44.76
• 20.42.179.192
• 52.123.252.204
• 4.144.132.114
• 4.230.171.124
• 4.247.188.224
• 74.178.240.61
• 20.42.73.26
• 20.165.94.54
• 135.232.92.137
• 172.64.154.167
• 52.110.12.21
• 52.110.12.25
• 48.200.63.27
• 4.207.44.77
• 135.234.160.246
• 203.26.79.13
• 20.184.175.2
• 125.56.205.26
• 125.56.205.32
• 52.178.17.3
• 20.42.65.94
• 52.148.114.188
• 52.110.12.42
• 172.172.255.218

More Vobfus samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report