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Analysis
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max time kernel
147s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24/09/2024, 15:43
Static task
static1
Behavioral task
behavioral1
Sample
f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe
Resource
win7-20240903-en
General
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Target
f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe
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Size
918KB
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MD5
f3f9184bcd70e29b2e5f8158bf563631
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SHA1
5ca76c85e3f1793d3fb239dbb8de63e2cff6f48b
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SHA256
f2d649742b53fe02fca59829fed91f928fdbe5dab012bbf62ebb91148806c5d2
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SHA512
d0c192a7ecbbdb9e574ea3d40aedfbfcd415267baf22e8813bf9c89ee59b4af9ac6574fe0220789817fdc3da78d40216106168c90f5b436660307c270b2b3a35
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SSDEEP
24576:SB9/QFCnBAu+GnMr3jYyEJusetjYRx0BtO/tiuIvkor91bJCCvP1lCRODh7kwSt8:DCnBAuWvkcbXrPa4
Malware Config
Extracted
nanocore
1.2.2.0
backupdns.hopto.org:2266
127.0.0.1:2266
85ac4869-a607-40fe-a1c1-4bce2d8e1d63
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2018-07-13T07:40:19.639778236Z
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bypass_user_account_control
false
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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
2266
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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
85ac4869-a607-40fe-a1c1-4bce2d8e1d63
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
backupdns.hopto.org
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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
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
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svhost.url f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe -
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 2536 set thread context of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 -
System Location Discovery: System Language Discovery 1 TTPs 5 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 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1124 schtasks.exe 2684 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 3428 RegAsm.exe 3428 RegAsm.exe 3428 RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3428 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe Token: SeDebugPrivilege 3428 RegAsm.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2536 wrote to memory of 3116 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 82 PID 2536 wrote to memory of 3116 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 82 PID 2536 wrote to memory of 3116 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 82 PID 2536 wrote to memory of 1124 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 84 PID 2536 wrote to memory of 1124 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 84 PID 2536 wrote to memory of 1124 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 84 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 2536 wrote to memory of 3428 2536 f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe 86 PID 3428 wrote to memory of 2684 3428 RegAsm.exe 87 PID 3428 wrote to memory of 2684 3428 RegAsm.exe 87 PID 3428 wrote to memory of 2684 3428 RegAsm.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /query2⤵
- System Location Discovery: System Language Discovery
PID:3116
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /sc MINUTE /tn svhost /MO 1 /tr "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1124
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3428 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp82CC.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2684
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5c6f0625bf4c1cdfb699980c9243d3b22
SHA143de1fe580576935516327f17b5da0c656c72851
SHA2568dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
SHA5129ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969