MALICIOUS — 03de398b0d3dc914e80d390006fd7407661c56d3417f461361a4aa670583b6bb
MALICIOUS — 03de398b0d3dc914e80d390006fd7407661c56d3417f461361a4aa670583b6bb 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:
03de398b0d3dc914e80d390006fd7407661c56d3417f461361a4aa670583b6bb - SHA-1:
3112525de1bb4a2d87e106b7ce3214aa9fcee13b - MD5:
3933477f9307db5b21818698cbe3d123 - imphash:
83b45e356be38dee9f40ac165206f07f - ssdeep:
768:bX5L/v28rbBBAs4efgciryxApKd+CfbjYfou+lt/fFTujSjAsOmqeiirtr:t/db4Y4yxmCNu+r/tTujUAsOertr - TLSH:
T1B5398DFA8437856BDAF6DB33EC84AD0E646354B7127E120453D3D04F26EA9D75830829 - Submitted as: 03de398b0d3dc914e80d390006fd7407661c56d3417f461361a4aa670583b6bb
- File type: pe · Size: 90342 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 23 external host(s) at runtime (21 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)
11935 behavior events · 2 ATT&CK techniques · 7 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
- config.edge.skype.com
- windows.msn.com
- msedge.api.cdp.microsoft.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\conwur.exe -
b28327a1e60ef3db1bea970415bfb6e2bbde20432fb1806fff2e4b09efadf99d - 1290f4ccd3543f08acd5f307db79fb17dd8ae1c3119bb3a51bdaa705dfd444c3 -
1290f4ccd3543f08acd5f307db79fb17dd8ae1c3119bb3a51bdaa705dfd444c3 - 80f2d2a8986cf985bce3701211dd749a9c0cada089ad7b8c940db19b94f10c38 -
80f2d2a8986cf985bce3701211dd749a9c0cada089ad7b8c940db19b94f10c38 - 9a434b40ec826a1964919cdea1c1c0982b87b66d3c757ed2e8634a038bab36b8 -
9a434b40ec826a1964919cdea1c1c0982b87b66d3c757ed2e8634a038bab36b8 - 621e2e53a5aaa5760fff6582b79a6d865f0b6de1288d8685aa7abfdb3d01dd61 -
621e2e53a5aaa5760fff6582b79a6d865f0b6de1288d8685aa7abfdb3d01dd61 - e7a3bbf17e99d6a05c731fb95e17c2b92126e7e9100614e5e43207953346742d -
e7a3bbf17e99d6a05c731fb95e17c2b92126e7e9100614e5e43207953346742d - 0f810f9030f842c3c135cc5a18001bdc88618add74533b191ee09a7ce02c7050 -
0f810f9030f842c3c135cc5a18001bdc88618add74533b191ee09a7ce02c7050
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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787924144&P2=404&P3=2&P4=bW9VcFS%2bLm89QyX1zEbgVpgbRpYqVoICX1ct%2fAstpU%2bcLIleJZavL2AnlP8D77e6awTUCeMsARFz%2fZemsphVdg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787924154&P2=404&P3=2&P4=QIM%2bHR%2bEV%2fFKOvoYu2OYE9zJ7OdTJP%2for1amHzc8YCeovhnwoiZvzG8Y2yoQIC8Impvxwxziv2oXmSkhLlSj%2bA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 52.168.117.175
- 52.253.84.76
- 4.230.171.124
- 85.210.196.11
- 20.42.179.192
- 74.179.71.159
- 74.178.240.61
- 4.150.223.111
- 74.178.76.54
- 203.26.79.13
- 74.178.76.128
- 20.76.201.171
- 40.99.133.242
- 52.123.129.14
- 20.184.175.3
- 20.184.175.18
- 135.233.45.223
- 92.223.78.30
- 52.148.114.188
- 40.84.97.4
- 72.153.5.133
- 52.110.12.4
- 52.110.12.26
File paths
- C:\Users\Joe
- C:\Users\Lisa\Desktop\LDuhywso.exe
- C:\Users\admin\Downloads\149b64894b08fbf689e396b1d00c94aadfef0630e793ab1e219811362261718f.exe
- C:\Users\Frank\Desktop\ormwnrZK.exe
- C:\Users\admin\Downloads\b258082c4d0f800fb40cab059bfd1dc28f178de5407dd2f86d3cc09356e76ea4.exe
- C:\96df71059e1e3069c8588e61ae54f30623ef3643c67a917c863d2845f7f49ddf
More Astaroth samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report