General
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Target
New Order _letter.pdf.z
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Size
47KB
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Sample
230612-kb854sba86
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MD5
890a3c454f15fb5dff65f1ad6b3b9133
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SHA1
4246a7def52030ef80d0dd4ce92f7d0a5bdbdd55
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SHA256
5ad17bffe3731205fe37d626ca9f597a57c70ee620cb09f2b46547f5a174df17
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SHA512
fc0ce5c3507ed1c0fa05f3e031846edd3c67d4b5ee83d6931450c95d64985150999e52ea86967149dd98fd75fdc067ef61d845f3c631c9c0a4f21432a083e243
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SSDEEP
768:32CWNn+/PLfISs6oq9ERQEHM+ocrrBoUT3Iu1FB6DVhdgcJZvrNSS+ox83QS:3Iwn8R6oq9E1ZVBjT3fcjTl+y8d
Behavioral task
behavioral1
Sample
New Order _letter.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
New Order _letter.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
purecrypter
http://172.245.191.17/000/Gjvbeqdycii.png
Extracted
snakekeylogger
Protocol: smtp- Host:
siamtmc.com - Port:
587 - Username:
[email protected] - Password:
s0mp0ng06 - Email To:
[email protected]
Targets
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Target
New Order _letter.exe
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Size
72KB
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MD5
f50c01b28f63ea3a2f9eda5d3f62cafc
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SHA1
15194fbd3471810bf689da9efeb57efdd4e4f21b
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SHA256
0e7012a66e5d3c6ada99f6dcf651fc8a29f31aa74083f76ee96992df0be54ffa
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SHA512
98bd8ce28d997815f135b0a73af05cd45d8bdde9d7a018311d7082ee76c3adca78b62ed161fc187febed6037aa556309cfaf13b2a29b1bd65c4a759e8fd5a8f5
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SSDEEP
1536:Ua3eJtxKnsYsEMINcTa7FFrj3Pxx1Px90:Ua3ez4sKNykrjfxxpxi
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Snake Keylogger payload
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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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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
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