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
-
purecrypter
C2
-
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.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
Suspicious use of SetThreadContext