Analysis
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max time kernel
147s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
03-06-2024 22:47
Behavioral task
behavioral1
Sample
92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
Resource
win7-20240508-en
General
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Target
92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
-
Size
508KB
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MD5
92dee88250716a1b84069e41c47d342e
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SHA1
b16fbfb6a7338d546abcd1e4215d611ac7d148fe
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SHA256
8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719
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SHA512
94f7e3f4cb003822f4144df6fc59da4fc5aa087111c00157f26b5a061c07655d5adb82e708807fc32fb8d7c2703e4ad5d94d6d00c02bff6b56cc6c06984cf148
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SSDEEP
6144:Z3F48TZj4P9miwZWCJPd3ZWfysc3yFEPfN+fs10RZfaCrdYm:o21iShdJWKV3yFEPfN+UuZf
Malware Config
Extracted
nanocore
1.2.2.0
zouina1.ddnsfree.com:9191
b2ae6bf7-ff72-4f89-86db-259e08f05aeb
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activate_away_mode
true
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backup_connection_host
zouina1.ddnsfree.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
2020-05-10T15:55:47.848866436Z
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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
false
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
9191
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default_group
Room1
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enable_debug_mode
true
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gc_threshold
1.0485748e+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
b2ae6bf7-ff72-4f89-86db-259e08f05aeb
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
zouina1.ddnsfree.com
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primary_dns_server
8.8.8.8
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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
false
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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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Executes dropped EXE 1 IoCs
Processes:
RegAsm.exepid process 2892 RegAsm.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegAsm.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Host = "C:\\Program Files (x86)\\DOS Host\\doshost.exe" RegAsm.exe -
Processes:
RegAsm.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
92dee88250716a1b84069e41c47d342e_JaffaCakes118.exedescription pid process target process PID 3956 set thread context of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegAsm.exedescription ioc process File created C:\Program Files (x86)\DOS Host\doshost.exe RegAsm.exe File opened for modification C:\Program Files (x86)\DOS Host\doshost.exe RegAsm.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 5024 3956 WerFault.exe 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3880 schtasks.exe 4864 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exepid process 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe 2892 RegAsm.exe 2892 RegAsm.exe 2892 RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegAsm.exepid process 2892 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe Token: SeDebugPrivilege 2892 RegAsm.exe Token: SeDebugPrivilege 2892 RegAsm.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exedescription pid process target process PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 3956 wrote to memory of 2892 3956 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe RegAsm.exe PID 2892 wrote to memory of 3880 2892 RegAsm.exe schtasks.exe PID 2892 wrote to memory of 3880 2892 RegAsm.exe schtasks.exe PID 2892 wrote to memory of 3880 2892 RegAsm.exe schtasks.exe PID 2892 wrote to memory of 4864 2892 RegAsm.exe schtasks.exe PID 2892 wrote to memory of 4864 2892 RegAsm.exe schtasks.exe PID 2892 wrote to memory of 4864 2892 RegAsm.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"2⤵
- Executes dropped EXE
- 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 "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC6F.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCBE.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3956 -s 13362⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3956 -ip 39561⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\RegAsm.exeFilesize
63KB
MD50d5df43af2916f47d00c1573797c1a13
SHA1230ab5559e806574d26b4c20847c368ed55483b0
SHA256c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc
SHA512f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2
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C:\Users\Admin\AppData\Local\Temp\tmpC6F.tmpFilesize
1KB
MD54cd7da0133ff64f40216341d95fe30bb
SHA188146cfd7754b988f50e929d876f33dc9916758f
SHA25637cce77e24a3c3d5ab28c16f726ef6a62c553acd972e256927f69064c4e1cfde
SHA512fa5b84f207fd9f20b2eace6cda9124e9d718fc80dc0a5fab31507f372d15ba69e1098a26e2e7036ba559ca52a99cfd804ca99ba68bda0a60386a33197722df8f
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C:\Users\Admin\AppData\Local\Temp\tmpCBE.tmpFilesize
1KB
MD5e380299eb53398115b7125b2b75c4798
SHA1ee59b86ea0abf4097ff94bd940521c583803b036
SHA256edb658b6577a80126eaacdf2a566755b63d7b2438fe0bcf3aea83930036811f3
SHA512d9e3f3b1370fe4fce4a631a5d0669cef34bfe83dec146b606eff562c7cc450639304a732104f425a7ccfdded58064f28a98434a59ed8d93b595d64d1e1a2dde1
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memory/2892-32-0x0000000075390000-0x0000000075B40000-memory.dmpFilesize
7.7MB
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memory/2892-18-0x0000000075390000-0x0000000075B40000-memory.dmpFilesize
7.7MB
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memory/2892-30-0x0000000004FA0000-0x0000000004FAA000-memory.dmpFilesize
40KB
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memory/2892-29-0x0000000004E70000-0x0000000004E8E000-memory.dmpFilesize
120KB
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memory/2892-28-0x0000000004E60000-0x0000000004E6A000-memory.dmpFilesize
40KB
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memory/2892-20-0x0000000004C50000-0x0000000004C5A000-memory.dmpFilesize
40KB
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memory/2892-19-0x0000000004D30000-0x0000000004DCC000-memory.dmpFilesize
624KB
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memory/2892-17-0x0000000000720000-0x0000000000758000-memory.dmpFilesize
224KB
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memory/3956-4-0x000000007539E000-0x000000007539F000-memory.dmpFilesize
4KB
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memory/3956-12-0x0000000006380000-0x000000000638A000-memory.dmpFilesize
40KB
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memory/3956-3-0x0000000075390000-0x0000000075B40000-memory.dmpFilesize
7.7MB
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memory/3956-10-0x0000000006DC0000-0x0000000006E04000-memory.dmpFilesize
272KB
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memory/3956-9-0x0000000075390000-0x0000000075B40000-memory.dmpFilesize
7.7MB
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memory/3956-8-0x0000000005F10000-0x0000000005FA2000-memory.dmpFilesize
584KB
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memory/3956-1-0x0000000000CF0000-0x0000000000D76000-memory.dmpFilesize
536KB
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memory/3956-0-0x000000007539E000-0x000000007539F000-memory.dmpFilesize
4KB
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memory/3956-7-0x0000000005E60000-0x0000000005E6A000-memory.dmpFilesize
40KB
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memory/3956-6-0x00000000063C0000-0x0000000006964000-memory.dmpFilesize
5.6MB
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memory/3956-5-0x0000000075390000-0x0000000075B40000-memory.dmpFilesize
7.7MB
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memory/3956-31-0x0000000075390000-0x0000000075B40000-memory.dmpFilesize
7.7MB
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memory/3956-2-0x0000000005630000-0x0000000005650000-memory.dmpFilesize
128KB