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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
28/09/2024, 09:45
Static task
static1
Behavioral task
behavioral1
Sample
fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe
Resource
win7-20240708-en
General
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Target
fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe
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Size
453KB
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MD5
fc073d184823f14d6b8e2ac32687c388
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SHA1
750aa1665cd1e92bff585ca0cf867c0c9d5e62b9
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SHA256
2db7cd1f54eb77ad7f41ab2acaf6db56b08c4a257c293c1a59ff6ba1a880dc67
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SHA512
f9512bb78dfcc98e27397d36c9ea0f810fc32858c43278be5ec03bcf2fac9f870fa46086d0d89f58025ae920f7f9fe39e982d5c285001416c1629cde4b03c1b5
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SSDEEP
12288:qMvxMb7KkM8GzodwfPQfyLZ1XSKeqtpMPR2El:qMvxEm9zm+PWeNMPg
Malware Config
Extracted
nanocore
1.2.2.0
185.244.30.99:2346
dish123newpro.publicvm.com:2346
e8beec1b-867e-4791-bc74-957fe35d1cc7
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activate_away_mode
true
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backup_connection_host
dish123newpro.publicvm.com
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2018-11-11T22:49:50.303838236Z
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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
2346
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default_group
NAPORT2346
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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
e8beec1b-867e-4791-bc74-957fe35d1cc7
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
185.244.30.99
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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation fc073d184823f14d6b8e2ac32687c388_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 4628 set thread context of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4840 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 4628 fc073d184823f14d6b8e2ac32687c388_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 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe Token: SeDebugPrivilege 3428 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4628 wrote to memory of 4840 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 91 PID 4628 wrote to memory of 4840 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 91 PID 4628 wrote to memory of 4840 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 91 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93 PID 4628 wrote to memory of 3428 4628 fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fc073d184823f14d6b8e2ac32687c388_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4628 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lyhQbCjQnAUX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D43.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4840
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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
PID:3428
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5545932f84b23cab6f6dfb4441e9a11e6
SHA1841ec741201d8b1ad858e2eb4bb414b33546cfaf
SHA256a0c68b6f80ef58e0782763e7bc5be9e58036eeb1d1619874f04fb1740291d172
SHA512a1b1c5a801ff997f2bf48eda773d2515e2264aad6811a99459e4c66890c1bbe323b1e3fc8935d9bb1e2bef07707da3bec325dff15026794f17b13e666040c9d3