General
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Target
bbe4ba566d229a405da3af72193d297f.exe
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Size
1.3MB
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Sample
230205-z1kw5sah45
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MD5
bbe4ba566d229a405da3af72193d297f
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SHA1
ffb73821d698bc2e32f1a32c7adf95e66520c7a8
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SHA256
aeb8e080b996a75f85bb82e2e7a42d0302735713f34fb95fff1bfb97a030e107
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SHA512
a3ba9225b2719f482f807fe91217cdccbb9c415d54a8cd4531960bf20456868ba7fb1be2e473c26f306c33b74615a6f5192f0c852dca25c66e6d63a4cbb25529
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SSDEEP
24576:8ixNAopnJcU4TgHosbIY95AcS1h9VOzYJ0Natxb:8iFpnx4TUosbIYEcSGQ06
Static task
static1
Behavioral task
behavioral1
Sample
bbe4ba566d229a405da3af72193d297f.exe
Resource
win7-20221111-en
Malware Config
Extracted
nanocore
1.2.2.0
rcontrol4sec.ddnsgeek.com:5080
127.0.0.1:5080
19b525d2-02f6-47c5-b606-1d038212d191
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2022-11-12T11:11:53.819338936Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
5080
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default_group
Set
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
19b525d2-02f6-47c5-b606-1d038212d191
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
rcontrol4sec.ddnsgeek.com
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
true
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Targets
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Target
bbe4ba566d229a405da3af72193d297f.exe
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Size
1.3MB
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MD5
bbe4ba566d229a405da3af72193d297f
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SHA1
ffb73821d698bc2e32f1a32c7adf95e66520c7a8
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SHA256
aeb8e080b996a75f85bb82e2e7a42d0302735713f34fb95fff1bfb97a030e107
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SHA512
a3ba9225b2719f482f807fe91217cdccbb9c415d54a8cd4531960bf20456868ba7fb1be2e473c26f306c33b74615a6f5192f0c852dca25c66e6d63a4cbb25529
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SSDEEP
24576:8ixNAopnJcU4TgHosbIY95AcS1h9VOzYJ0Natxb:8iFpnx4TUosbIYEcSGQ06
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Detect PureCrypter injector
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Modifies WinLogon for persistence
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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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Suspicious use of SetThreadContext
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