MALICIOUS — 0b4336344dac062d93d49ed68bdf2374def48478e88d125dfc6757744e7cba7d
MALICIOUS — 0b4336344dac062d93d49ed68bdf2374def48478e88d125dfc6757744e7cba7d is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the PolyRansom family. 5 of 56 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
0b4336344dac062d93d49ed68bdf2374def48478e88d125dfc6757744e7cba7d - SHA-1:
527e435f572ec1add268d41118220116d4eeb7b7 - MD5:
256383f549b61d7ac37648ac5d565d82 - imphash:
18c89e2ec0a399c68eaedd6551ce71fc - ssdeep:
6144:9UHKIA8yKuAP7bi3zsakMPczmqD1/SkXftFJ1gc2ecFx:9/IA8yKuAP7bijsaD21/S8Jec - TLSH:
T1E5442398C522061ADDB57209BCEB6A6F40D6C9E7DF4A0842662880301777F8FDD607ED - Submitted as: 0b4336344dac062d93d49ed68bdf2374def48478e88d125dfc6757744e7cba7d
- File type: pe · Size: 251392 bytes
- Verdict: malicious (100/100) · Family: PolyRansom
Detections (5 of 56 engines)
- ClamAV (daily): Win.Trojan.Agent-1376290
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Microsoft Defender: Virus:Win32/Ursnif.gen!A
- Emsisoft (Emergency Kit): Win32.Doboc.Gen.2.Dam
- Kaspersky (KVRT): Virus.Win32.PolyRansom.l
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 12 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Agent-1376290 (rule
Win.Trojan.Agent-1376290) - engine signal, weight 0.90, confidence 0.95 - 2 behavioral detection(s) across 2 rule(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.63, confidence 0.90 - Microsoft Defender flagged Virus:Win32/Ursnif.gen!A (rule
Virus:Win32/Ursnif.gen!A) - engine signal, weight 0.55, confidence 0.85 - Emsisoft (Emergency Kit) flagged Win32.Doboc.Gen.2.Dam (rule
Win32.Doboc.Gen.2.Dam) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged Virus.Win32.PolyRansom.l (rule
Virus.Win32.PolyRansom.l) - engine signal, weight 0.55, confidence 0.85 - YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70 - 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 2 external host(s) and 7 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30
Dynamic analysis (windows)
54689 behavior events · 3 ATT&CK techniques · 10 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- ctldl.windowsupdate.com
- login.live.com
- update.googleapis.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- settings-win.data.microsoft.com
- licensing.mp.microsoft.com
- config.edge.skype.com
- windows.msn.com
- officeclient.microsoft.com
- www.msn.com
- odc.officeapps.live.com
- assets.msn.com
- www.bing.com
- fe3cr.delivery.mp.microsoft.com
- v10.events.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\~DFE0.tmp -
96fa6a7714670823c83099ea01d24d6d3ae8fef027f01a4ddac14f123b1c9974 - 1f271ada36c6604df4c1898ad1a04a5675407401b997bb98198f506f4a2585fa -
1f271ada36c6604df4c1898ad1a04a5675407401b997bb98198f506f4a2585fa - ed8bd7472c1576359bd84d062af540c068e458c4f55ab7291d0e468bd7d3487a -
ed8bd7472c1576359bd84d062af540c068e458c4f55ab7291d0e468bd7d3487a - 02e34141bce53c622a88541f865d97e2f8360461efd66252ac7018d967d5d0ce -
02e34141bce53c622a88541f865d97e2f8360461efd66252ac7018d967d5d0ce - 3d83752f8e141e07ba75bac95eab8b67622353107baf4d2c620a72facc22dbe5 -
3d83752f8e141e07ba75bac95eab8b67622353107baf4d2c620a72facc22dbe5 - 4c009efff666c2667d779df885c03f76a820dee09c35036c98690d4c50c9ed73 -
4c009efff666c2667d779df885c03f76a820dee09c35036c98690d4c50c9ed73 - a27351dc7f0993215f65f9db46f633f0f7123618578eb3a01e13db3395f2082d -
a27351dc7f0993215f65f9db46f633f0f7123618578eb3a01e13db3395f2082d - 3423cdfb8c6706adf2d496b1050550d20e013a7915c95c03456f3605c53fa36b -
3423cdfb8c6706adf2d496b1050550d20e013a7915c95c03456f3605c53fa36b - 40a070803736b15d8faff1ed46f17116feabf693310e37375d5058ae2c8988cf -
40a070803736b15d8faff1ed46f17116feabf693310e37375d5058ae2c8988cf - a42c4ed8f35ea3a110652a15a606b0a3f0e7531cbb67f22c394e4a7b9864eaf1 -
a42c4ed8f35ea3a110652a15a606b0a3f0e7531cbb67f22c394e4a7b9864eaf1
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/89c77c08-6078-44b6-8f27-85720154df65/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/89c77c08-6078-44b6-8f27-85720154df65?P1=1788037570&P2=404&P3=2&P4=AfHQAZwaZUNoFS4H9grRmRL7Og2jeZ1oZuE39dxCUXBAEVh1TN%2fO1oPCvktBEVpG9a0LgcpSl5KKGvsXIv5u2g%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 4.150.223.100
- 20.42.179.192
- 52.123.252.195
- 52.230.60.54
- 4.230.171.124
- 172.215.188.232
- 74.178.240.51
- 20.42.65.93
- 135.233.95.144
- 135.232.92.137
- 135.233.45.221
- 135.234.160.244
- 52.123.252.212
- 135.233.95.80
- 203.26.79.13
- 52.110.12.19
- 52.110.12.30
- 92.223.78.30
- 72.154.7.108
- 20.42.65.89
- 172.215.188.225
- 52.148.114.188
- 52.110.12.53
- 52.110.12.48
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report