Behavioral task
behavioral1
Sample
4bfcba248d79dfd6c2cba52d7c9ee18842f007bfa0e3ba99ababacb4794e8c6e.exe
Resource
win10v2004-20240802-en
General
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Target
4bfcba248d79dfd6c2cba52d7c9ee18842f007bfa0e3ba99ababacb4794e8c6e
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Size
552KB
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MD5
1873f27a43f63c02800d6c80014c0235
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SHA1
3441bba24453db09fb56e02a9d56cdf775886f07
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SHA256
4bfcba248d79dfd6c2cba52d7c9ee18842f007bfa0e3ba99ababacb4794e8c6e
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SHA512
9f2b663afc1cc3dbc8eba3278f61ffb41c19e42f94ee4c8a60eff83c8846b81d34e4ff869b643434a8ad5657c46bd06a712f0598062b62802ba6f0ee6f4fb8f2
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SSDEEP
12288:WLV6BtpmkzPLrQIh+ReoSwN+Jp9rQj3SHdEIzqLPxc3hHyOm:EApfzPfQ9RecEp9NzUi3JyL
Malware Config
Extracted
nanocore
1.2.2.0
91.92.240.41:7575
7029ef73-6025-47e5-b0d0-fb5b27c261b8
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activate_away_mode
false
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backup_connection_host
91.92.240.41
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-05-23T20:48:22.996317836Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
false
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clear_zone_identifier
false
-
connect_delay
4000
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connection_port
7575
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default_group
Default
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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
7029ef73-6025-47e5-b0d0-fb5b27c261b8
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
91.92.240.41
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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
5000
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run_on_startup
false
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set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
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wan_timeout
8000
Signatures
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Nanocore family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 4bfcba248d79dfd6c2cba52d7c9ee18842f007bfa0e3ba99ababacb4794e8c6e
Files
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4bfcba248d79dfd6c2cba52d7c9ee18842f007bfa0e3ba99ababacb4794e8c6e.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 114KB - Virtual size: 113KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.rsrc Size: 437KB - Virtual size: 437KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ