General
- Target Vietcombank_Ban Sao Thanh Toan_Pdf.exe
- Size 23KB
- Sample230113-sdctpahg45
- SHA256 bc6b7187bcc579a4fd0e7ffc54bb1a5fb9fa47a3d781bce55a8c4d9ba4df0139
- MD5 357dc7fc40a74f7db969a2bd89188d6d
- SHA1 4afed0569b36c95f96bac367232cae88eb201e64
- SHA512 da23f8e01dfd78874bd274ae7cca8593ca7be0c12d3de0061630e6c737cbc87433451536ed992491568221b82548eff353bc19c7e3e6383a49d3e6a0ae261c8a
- SSDEEP 96:P99U6k5sBsdf2XLGMRE7ng2deOFVkAwGuTFKfEPfPNAgARricsGb7kvrBzNt:Pb6KLGMWkOMAluTFCEvNesG+D
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
Vietcombank_Ban Sao Thanh Toan_Pdf.exe
Resource
win7-20221111-en
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
Vietcombank_Ban Sao Thanh Toan_Pdf.exe
Resource
win10v2004-20221111-en
15 signatures
150 seconds
Malware Config
Extracted
Family
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purecrypter
C2
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http://savory.com.bd/sav/Ezxucmj.bmp
Targets
-
- Target Vietcombank_Ban Sao Thanh Toan_Pdf.exe
- Size 23KB
- SHA256 bc6b7187bcc579a4fd0e7ffc54bb1a5fb9fa47a3d781bce55a8c4d9ba4df0139
- MD5 357dc7fc40a74f7db969a2bd89188d6d
- SHA1 4afed0569b36c95f96bac367232cae88eb201e64
- SHA512 da23f8e01dfd78874bd274ae7cca8593ca7be0c12d3de0061630e6c737cbc87433451536ed992491568221b82548eff353bc19c7e3e6383a49d3e6a0ae261c8a
- SSDEEP 96:P99U6k5sBsdf2XLGMRE7ng2deOFVkAwGuTFKfEPfPNAgARricsGb7kvrBzNt:Pb6KLGMWkOMAluTFCEvNesG+D
- MD5 SHA1 SHA512 SSDEEP
-
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext