Behavioral task
behavioral1
Sample
nanocore.exe
Resource
win7-20230831-en
General
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Target
nanocore.payload-disk
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Size
202KB
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MD5
eb21ea7fe79061a975e17a775f73b64b
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SHA1
e30f6f3bc997a19c47dbe3e26be7a0bf57212c72
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SHA256
52127f54889e61c4d6bd8043eadb68cc448a351d5214c83b7aed43b2857549ae
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SHA512
fe45dc03351a14e970bfc68a0e23c14657bd5e82772cf8f1b60016ccb341f1ee17677003d37bf0dfda0024d2ce4f69884629439f555f8e76627d3e336353548a
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SSDEEP
3072:wzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIBdCbXfzANcJjmA/aKav8Sgd70:wLV6Bta6dtJmakIM5Fuo2oVu5Ezmmbo
Malware Config
Extracted
nanocore
1.2.2.0
79.110.62.170:4445
cb222388-60cd-45a6-86e9-345ab11492c9
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activate_away_mode
true
- backup_connection_host
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2023-06-30T07:50:17.873975236Z
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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
4445
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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
cb222388-60cd-45a6-86e9-345ab11492c9
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
79.110.62.170
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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
false
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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
Signatures
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Nanocore family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource nanocore.payload-disk
Files
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nanocore.payload-disk.exe windows 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: 87KB - Virtual size: 87KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ