Resubmissions
15-08-2024 11:42
240815-nt6pgsvcmj 715-08-2024 11:37
240815-nrkz1avbpj 1015-08-2024 11:36
240815-nqyjpsvbmq 1015-08-2024 11:33
240815-npbcsavbjm 10Analysis
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max time kernel
149s -
max time network
26s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
15-08-2024 11:36
Static task
static1
Behavioral task
behavioral1
Sample
ae1265e9fe0ac39bbe970a3fa66c64b0N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
ae1265e9fe0ac39bbe970a3fa66c64b0N.exe
Resource
win10v2004-20240802-en
General
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Target
ae1265e9fe0ac39bbe970a3fa66c64b0N.exe
-
Size
282KB
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MD5
ae1265e9fe0ac39bbe970a3fa66c64b0
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SHA1
9239a5d795a2d97e72e7bd9b48b125d0e2459960
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SHA256
87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0
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SHA512
ff66d820fd16cc06ee99b995b1de7aa22d545da35518a1b02c5d5dee6a2d6c8670d3c3ba6934c0f0ebeaadb577c9de91dd9db8f8b27d1636f4f7514a6b4430a5
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SSDEEP
6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfQ:boSeGUA5YZazpXUmZhZ6Sp
Malware Config
Extracted
nanocore
1.2.2.0
sysupdate24.ddns.net:45400
ae82ab7f-db07-49ee-9d2b-76075d76f37f
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activate_away_mode
true
- backup_connection_host
- backup_dns_server
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buffer_size
65535
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build_time
2020-04-24T17:41:53.492468936Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
45400
-
default_group
Default
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enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
ae82ab7f-db07-49ee-9d2b-76075d76f37f
-
mutex_timeout
5000
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prevent_system_sleep
false
-
primary_connection_host
sysupdate24.ddns.net
- primary_dns_server
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request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
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
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
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Executes dropped EXE 2 IoCs
Processes:
a1punf5t2of.exea1punf5t2of.exepid process 2392 a1punf5t2of.exe 2500 a1punf5t2of.exe -
Loads dropped DLL 2 IoCs
Processes:
ae1265e9fe0ac39bbe970a3fa66c64b0N.exea1punf5t2of.exepid process 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe 2392 a1punf5t2of.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
ae1265e9fe0ac39bbe970a3fa66c64b0N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" ae1265e9fe0ac39bbe970a3fa66c64b0N.exe -
Processes:
a1punf5t2of.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a1punf5t2of.exedescription pid process target process PID 2392 set thread context of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
ae1265e9fe0ac39bbe970a3fa66c64b0N.exea1punf5t2of.exea1punf5t2of.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ae1265e9fe0ac39bbe970a3fa66c64b0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
a1punf5t2of.exepid process 2500 a1punf5t2of.exe 2500 a1punf5t2of.exe 2500 a1punf5t2of.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
a1punf5t2of.exepid process 2500 a1punf5t2of.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a1punf5t2of.exedescription pid process Token: SeDebugPrivilege 2500 a1punf5t2of.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
ae1265e9fe0ac39bbe970a3fa66c64b0N.exea1punf5t2of.exedescription pid process target process PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2716 wrote to memory of 2392 2716 ae1265e9fe0ac39bbe970a3fa66c64b0N.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe PID 2392 wrote to memory of 2500 2392 a1punf5t2of.exe a1punf5t2of.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2500
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:2632
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
282KB
MD5073e776e2fa4fd6b5ddb563b87dea053
SHA17d65530ad5094112cfb5c7e37c7764213fc50c3b
SHA2567d1e0c875028a43085b75839bfcd275249cb6a26cccfc58d35ccb9a36b629b6d
SHA512730866d0695e9531b84a39623a42f24b72a8709e8d1801aed1ebc5c9509ef8bb3415ecae0123a68d524ebfd9b1a084271708a3802ed935bac797eab65d4077df