MALICIOUS — c6f0080cf7161bffb9a41ed9b43e6d709be9b0bfbab3be31a9b7c0a0d71d407a
MALICIOUS — c6f0080cf7161bffb9a41ed9b43e6d709be9b0bfbab3be31a9b7c0a0d71d407a is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Astaroth family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
c6f0080cf7161bffb9a41ed9b43e6d709be9b0bfbab3be31a9b7c0a0d71d407a - SHA-1:
0b31e0fb842471dfd9706c130c4373b19a135acd - MD5:
6476f7998f6629fc6b589c120e1a048b - imphash:
83b45e356be38dee9f40ac165206f07f - ssdeep:
768:bX5L/v28rbBBAs4efgciryxApKd+CfbjYfou+lt/fFTujSjAsOmqeiir6D:t/db4Y4yxmCNu+r/tTujUAsOer6D - TLSH:
T134398DFA8437856BDAF6DB33EC84AD0E646354B7127E120457D3D04F2AEA9D75830828 - Submitted as: c6f0080cf7161bffb9a41ed9b43e6d709be9b0bfbab3be31a9b7c0a0d71d407a
- File type: pe · Size: 90318 bytes
- Verdict: malicious (99/100) · Family: Astaroth
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Trojan.Zbot-64619
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Microsoft Defender: Trojan:Win32/Astaroth!pz
- Emsisoft (Emergency Kit): Trojan.Downloader.JQRK
- Kaspersky (KVRT): Trojan-Downloader.Win32.Necurs.d
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Zbot-64619 (rule
Win.Trojan.Zbot-64619) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 25 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
- 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)
11839 behavior events · 2 ATT&CK techniques · 5 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- settings-win.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\conwur.exe -
f18cf5b7cfc2d45ba2f7600041b819fa1ea26732df4b70f47bed57dc7305e09a - 4232bc8df1c6e408816abe6e6f40f0a26f2d12944abdf55a4610649ee000f191 -
4232bc8df1c6e408816abe6e6f40f0a26f2d12944abdf55a4610649ee000f191 - 5991c5ce3b19b81584ee237a0ae6693353ea70c921838dcc1b87db5707bd9f22 -
5991c5ce3b19b81584ee237a0ae6693353ea70c921838dcc1b87db5707bd9f22 - 9a434b40ec826a1964919cdea1c1c0982b87b66d3c757ed2e8634a038bab36b8 -
9a434b40ec826a1964919cdea1c1c0982b87b66d3c757ed2e8634a038bab36b8 - 4915d54d34bba214d868be815ff7afed128a9d668a66b5acf31cdc7d7f632001 -
4915d54d34bba214d868be815ff7afed128a9d668a66b5acf31cdc7d7f632001
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/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=1787788882&P2=404&P3=2&P4=Rmo5MeCrcdu02y4z0%2bUpveRLxwj9UJz92ZA1CCdYLDeIKuAjpsd44dzFHA4g3%2fayyLRn2gd%2bYGcum2pA2Xl%2fRw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787788935&P2=404&P3=2&P4=RIX1M7Rn6X90VNZCPFrJVhF%2fUoazL4OuYSE8XF2IJLBJFmAwkQQAvcNPfLtERjPiFsPAMvn0H07xWRSpRvb8qQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 104.208.16.94
- 57.155.104.224
- 4.144.132.223
- 4.230.171.124
- 4.247.188.224
- 20.165.94.63
- 74.179.77.164
- 135.233.95.144
- 40.79.150.122
- 20.112.250.133
- 52.123.128.14
- 52.123.129.14
- 135.233.45.221
- 135.234.160.245
- 52.110.12.8
- 52.148.114.188
- 203.26.79.13
- 52.110.12.15
- 20.184.175.6
- 4.150.223.106
- 135.232.92.34
- 52.123.252.225
- 72.145.35.107
- 52.110.12.1
- 52.110.12.53
File paths
- C:\Users\Joe
- C:\Users\admin\Downloads\92f3dcf2059e54e1826b398cd3d628de.virus.exe
- C:\Users\Frank\Desktop\TlSTZzAw.exe
- C:\ff16c669b1d2721c19c4492fa7dad7e853cfd8fb7ed1f976f75537d8d863ba05
- C:\Users\george\Desktop\conwur.exe
- C:\Users\admin\Downloads\conwur.exe
- C:\Users\Lisa\Desktop\zECuCLaL.exe
More Astaroth samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report