Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
16-07-2024 22:16
Static task
static1
Behavioral task
behavioral1
Sample
1f68852529fa2635a5d24604892fb460N.exe
Resource
win7-20240708-en
General
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Target
1f68852529fa2635a5d24604892fb460N.exe
-
Size
279KB
-
MD5
1f68852529fa2635a5d24604892fb460
-
SHA1
ff7f438089ec2181c2659353dac8616251c17e99
-
SHA256
38bafb3ee04c69f78a7ee8252e9ab01fdc76eeb11b6b37c527dba1ef8de1f75b
-
SHA512
222c98f661a11770f191d3364058a3868c5bc2bbd36c6494c1dd0d747906fe2a549fd35a8e2eb65ca28cfe0eda9313b44979da070b4bda6b0788e7a150825565
-
SSDEEP
6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKn:boSeGUA5YZazpXUmZhZ6Sn
Malware Config
Extracted
nanocore
1.2.2.0
sysupdate24.ddns.net:45400
ae82ab7f-db07-49ee-9d2b-76075d76f37f
-
activate_away_mode
true
- backup_connection_host
- backup_dns_server
-
buffer_size
65535
-
build_time
2020-04-24T17:41:53.492468936Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
45400
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
ae82ab7f-db07-49ee-9d2b-76075d76f37f
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
sysupdate24.ddns.net
- primary_dns_server
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
set_critical_process
true
-
timeout_interval
5000
-
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 2732 a1punf5t2of.exe 2776 a1punf5t2of.exe -
Loads dropped DLL 2 IoCs
Processes:
1f68852529fa2635a5d24604892fb460N.exea1punf5t2of.exepid process 1572 1f68852529fa2635a5d24604892fb460N.exe 2732 a1punf5t2of.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
1f68852529fa2635a5d24604892fb460N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" 1f68852529fa2635a5d24604892fb460N.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 2732 set thread context of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
a1punf5t2of.exepid process 2776 a1punf5t2of.exe 2776 a1punf5t2of.exe 2776 a1punf5t2of.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
a1punf5t2of.exepid process 2776 a1punf5t2of.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a1punf5t2of.exedescription pid process Token: SeDebugPrivilege 2776 a1punf5t2of.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
1f68852529fa2635a5d24604892fb460N.exea1punf5t2of.exedescription pid process target process PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 1572 wrote to memory of 2732 1572 1f68852529fa2635a5d24604892fb460N.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe PID 2732 wrote to memory of 2776 2732 a1punf5t2of.exe a1punf5t2of.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1f68852529fa2635a5d24604892fb460N.exe"C:\Users\Admin\AppData\Local\Temp\1f68852529fa2635a5d24604892fb460N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
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
- Suspicious use of WriteProcessMemory
-
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
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exeFilesize
279KB
MD5808aadb86b17a686bc31f660a953cbab
SHA192c7f76445c47b25131663989a221d3a8111ee4a
SHA256138cad06b09ac17d1325945b6c69566239269544729bd0b42951ba57ec036ad9
SHA51265dce48bcf316c1d019efd74890e1ed6b7268ccd462be561504a4ace456ef50ef3b4607ef3a1b1bbe4fdf712c68fb8a8b1bd22555b87795f0d6e0bef8034e64c
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memory/1572-0-0x0000000073DD1000-0x0000000073DD2000-memory.dmpFilesize
4KB
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memory/1572-1-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
-
memory/1572-2-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
-
memory/1572-3-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/1572-12-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/2732-15-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/2732-14-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/2732-13-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/2732-37-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/2732-38-0x0000000073DD0000-0x000000007437B000-memory.dmpFilesize
5.7MB
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memory/2776-27-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2776-35-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/2776-33-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2776-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2776-24-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2776-19-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2776-17-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2776-21-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB