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Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27/01/2025, 01:49
Static task
static1
Behavioral task
behavioral1
Sample
46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe
Resource
win10v2004-20241007-en
General
-
Target
46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe
-
Size
416KB
-
MD5
d8fdfbfd5c63977d3a802fe8b185a61f
-
SHA1
dcab16d4ee8909794148c357abf2ab45d6d17fff
-
SHA256
46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994
-
SHA512
0e5ffec28eb71314504a30c8d7c7bbb68a0b7aa79f0181360f9f9f99db434bdc27e581e893ff8b7da7bfbeb700a131f11b3651709655564011580df04ca261e8
-
SSDEEP
6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU2:ITNYrnE3bm/CiejewY5vX
Malware Config
Extracted
nanocore
1.2.2.0
4af74541-e3f1-469c-8af7-efe4071b81cf
-
activate_away_mode
false
-
backup_connection_host
178.32.224.116
- backup_dns_server
-
buffer_size
65535
-
build_time
2018-07-28T12:59:38.488799236Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
46218
-
default_group
tourex
-
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
4af74541-e3f1-469c-8af7-efe4071b81cf
-
mutex_timeout
5000
-
prevent_system_sleep
false
- primary_connection_host
- 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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Nanocore family
-
Executes dropped EXE 1 IoCs
pid Process 2760 ximo2ubzn1i.exe -
Loads dropped DLL 1 IoCs
pid Process 2192 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe" 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe -
Checks whether UAC is enabled 1 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA regasm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2760 set thread context of 2620 2760 ximo2ubzn1i.exe 29 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ximo2ubzn1i.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regasm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2620 regasm.exe 2620 regasm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2620 regasm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2620 regasm.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2192 wrote to memory of 2760 2192 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe 28 PID 2192 wrote to memory of 2760 2192 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe 28 PID 2192 wrote to memory of 2760 2192 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe 28 PID 2192 wrote to memory of 2760 2192 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe 28 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29 PID 2760 wrote to memory of 2620 2760 ximo2ubzn1i.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe"C:\Users\Admin\AppData\Local\Temp\46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192 -
C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"3⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2620
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
416KB
MD500ca7a3e1fc5c55ffcfdc878407f719d
SHA11b5f0e05a942c26a2b7d8994ad70fa08ddb229b8
SHA2561d674abda4b72984bcfa7f53078c50a524862ebf27e9cfc9301c55a4c8318ff5
SHA512241d67fea70984da9de33f832c5b739e1b56a1ecab6d5731cb0b39460b9204f91b427b104ba3e7afea84bc951d50ea72a938f3e7f7c55cbebf5a2c9a09c7c068