Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29-03-2024 10:36
Static task
static1
Behavioral task
behavioral1
Sample
1fc9414612683fa9b525a75355706490_JaffaCakes118.exe
Resource
win7-20240221-en
General
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Target
1fc9414612683fa9b525a75355706490_JaffaCakes118.exe
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Size
636KB
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MD5
1fc9414612683fa9b525a75355706490
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SHA1
780cee42ffebc33391e0a814db98e5cf8affed5e
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SHA256
ae095ebb3fffa75296b6db100d55ef0dcf8e8c7eb9a0c616e0adb732dc4ee8c9
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SHA512
87777ca70b286fdb5b769efab741a09546e68825769b381328e8deb9321099a5315a30cbf512cacd3297bb1f7cd55983048aeb15c47862a4811bce2a6bf4dbeb
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SSDEEP
12288:o0cPk+EcPRnhUVjfP+Uuf2j613ztwXUoaAE0UErHPsRIY9Zi6g6SB:JcPhEcpw+U02e13ztwXUoaAlrvsxi6aB
Malware Config
Extracted
nanocore
1.2.2.0
chinomso.duckdns.org:7688
bee718f3-e47a-44f8-955e-2fe2c6c0351c
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activate_away_mode
true
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backup_connection_host
chinomso.duckdns.org
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backup_dns_server
chinomso.duckdns.org
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buffer_size
65535
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build_time
2021-01-17T14:27:22.436365536Z
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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
7688
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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
bee718f3-e47a-44f8-955e-2fe2c6c0351c
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
chinomso.duckdns.org
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primary_dns_server
chinomso.duckdns.org
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request_elevation
false
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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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.
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Service = "C:\\Program Files (x86)\\ARP Service\\arpsv.exe" 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription pid process target process PID 1076 set thread context of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Drops file in Program Files directory 2 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription ioc process File created C:\Program Files (x86)\ARP Service\arpsv.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe File opened for modification C:\Program Files (x86)\ARP Service\arpsv.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2988 schtasks.exe 4380 schtasks.exe 3636 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exepid process 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exepid process 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription pid process Token: SeDebugPrivilege 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
1fc9414612683fa9b525a75355706490_JaffaCakes118.exe1fc9414612683fa9b525a75355706490_JaffaCakes118.exedescription pid process target process PID 1076 wrote to memory of 2988 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 1076 wrote to memory of 2988 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 1076 wrote to memory of 2988 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 1076 wrote to memory of 2808 1076 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe PID 2808 wrote to memory of 4380 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 2808 wrote to memory of 4380 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 2808 wrote to memory of 4380 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 2808 wrote to memory of 3636 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 2808 wrote to memory of 3636 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe PID 2808 wrote to memory of 3636 2808 1fc9414612683fa9b525a75355706490_JaffaCakes118.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1fc9414612683fa9b525a75355706490_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\1fc9414612683fa9b525a75355706490_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xWvcJacCRTJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp22F4.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\1fc9414612683fa9b525a75355706490_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\1fc9414612683fa9b525a75355706490_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2BDD.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2CAA.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1fc9414612683fa9b525a75355706490_JaffaCakes118.exe.logFilesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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C:\Users\Admin\AppData\Local\Temp\tmp2BDD.tmpFilesize
1KB
MD51ee351f593e6b593374dc58a366b9d20
SHA10bcd02b624fe8f154c46b2e50625869e71f983f2
SHA2566c7568444531e9999148e98b6d12489c3044fcac52077b70f7a1dffb687de237
SHA512eb8e8fae0e3286d5ef5a2dbfcaa4c600f843fb7169a36eb987c39ff9ca8828008cb66751f0bf336a2e08f99283964f57343218254cdc9825432a572f93f1313c
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C:\Users\Admin\AppData\Local\Temp\tmp2CAA.tmpFilesize
1KB
MD5e3d8a2c80dc1de6ebee175682e7e4dd3
SHA15bb398aed2393c4cf0346b562b838c95fd708309
SHA25660775bc8ec1db88eff1bd8ee35f3a237e2b3b65d4c8835d582dc410523f33aa0
SHA512f61d934c0bd3122f0842de57f5ab0853b31be672360c5cce09f3509920b3da0690240da89e5d31a9c8cb67383f635e03085b5b44416a042e4501aa35fb58c912
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memory/1076-10-0x0000000006BE0000-0x0000000006C64000-memory.dmpFilesize
528KB
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memory/1076-3-0x0000000005440000-0x00000000054D2000-memory.dmpFilesize
584KB
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memory/1076-5-0x0000000005410000-0x000000000541A000-memory.dmpFilesize
40KB
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memory/1076-6-0x0000000005690000-0x000000000569A000-memory.dmpFilesize
40KB
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memory/1076-7-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/1076-8-0x00000000056A0000-0x00000000056B0000-memory.dmpFilesize
64KB
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memory/1076-9-0x0000000006A40000-0x0000000006ADC000-memory.dmpFilesize
624KB
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memory/1076-0-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/1076-1-0x00000000009B0000-0x0000000000A56000-memory.dmpFilesize
664KB
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memory/1076-4-0x00000000056A0000-0x00000000056B0000-memory.dmpFilesize
64KB
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memory/1076-20-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/1076-2-0x00000000059F0000-0x0000000005F94000-memory.dmpFilesize
5.6MB
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memory/2808-21-0x0000000005330000-0x0000000005340000-memory.dmpFilesize
64KB
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memory/2808-19-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/2808-16-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2808-29-0x0000000005320000-0x000000000532A000-memory.dmpFilesize
40KB
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memory/2808-30-0x00000000056A0000-0x00000000056BE000-memory.dmpFilesize
120KB
-
memory/2808-31-0x00000000062B0000-0x00000000062BA000-memory.dmpFilesize
40KB
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memory/2808-32-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/2808-33-0x0000000005330000-0x0000000005340000-memory.dmpFilesize
64KB