Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
19-06-2024 07:36
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe
Resource
win7-20240508-en
General
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Target
2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe
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Size
5.8MB
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MD5
79d41e803ff07bb5a9cbe4171a4fd09d
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SHA1
d605267642ebb7cc4cbe44624c5b4ddca80e0b3d
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SHA256
38bdd3c94b5c8f7adbd2075ca213b3303b12af96245092ef402606d372b3f8fd
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SHA512
13c70cf2a69466248c7eb9f04bfaae187b3db1bbd023a2aaea21a58c3617f30022f8df58adb3615f1c4129f86e81730c7e840a44d6dae817ee7bd0c3243887b6
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SSDEEP
98304:vY1/j6oX2Vi367ZGHbekta/Xgj22iZa6fAd5UkYKty6WAf3Gs:Qu6lHbq2riZa6fymkYdlAf3Gs
Malware Config
Extracted
phorphiex
http://185.215.113.66/
http://77.91.77.92/
http://91.202.233.141/
0xCa90599132C4D88907Bd8E046540284aa468a035
TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
LLeT2zkStY3cvxMBFhoWXkG5VuZPoezduv
rwc4LVd9ABpULQ1CuCpDkgX2xVB1fUijyb
4AtjkCVKbtEC3UEN77SQHuH9i1XkzNiRi5VCbA2XGsJh46nJSXfGQn4GjLuupCqmC57Lo7LvKmFUyRfhtJSvKvuw3h9ReKK
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
17hgMFyLDwMjxWqw5GhijhnPdJDyFDqecY
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1epx67ne4vckqmaj4gwke8m322f4yjr6eh52wqw
bc1qmpkehfffkr6phuklsksnd7nhgx0369sxu772m3
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3
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mutex
55a4er5wo
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Signatures
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Modifies security service 2 TTPs 2 IoCs
Processes:
sysmablsvr.exewinblrsnrcs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" winblrsnrcs.exe -
Phorphiex payload 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\398615499.exe family_phorphiex C:\Users\Admin\AppData\Local\Temp\3130218858.exe family_phorphiex -
Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
Processes:
1500710897.exewupgrdsv.exedescription pid process target process PID 5012 created 3468 5012 1500710897.exe Explorer.EXE PID 5012 created 3468 5012 1500710897.exe Explorer.EXE PID 3836 created 3468 3836 wupgrdsv.exe Explorer.EXE PID 3836 created 3468 3836 wupgrdsv.exe Explorer.EXE -
Processes:
sysmablsvr.exewinblrsnrcs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysmablsvr.exe -
XMRig Miner payload 11 IoCs
Processes:
resource yara_rule behavioral2/memory/3836-80-0x00007FF68E340000-0x00007FF68E8B6000-memory.dmp xmrig behavioral2/memory/3852-97-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-104-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-111-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-113-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-120-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-121-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-122-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-123-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-134-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig behavioral2/memory/3852-135-0x00007FF6B3FC0000-0x00007FF6B47AF000-memory.dmp xmrig -
Downloads MZ/PE file
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Executes dropped EXE 14 IoCs
Processes:
3410.exe398615499.exesysmablsvr.exe3130218858.exe336917521.exe1500710897.exe15548735.exewupgrdsv.exe2182133123.exewinblrsnrcs.exe3120314856.exe3752238891.exe3309330154.exe2559810288.exepid process 3252 3410.exe 4248 398615499.exe 4464 sysmablsvr.exe 1444 3130218858.exe 5024 336917521.exe 5012 1500710897.exe 4776 15548735.exe 3836 wupgrdsv.exe 1636 2182133123.exe 2080 winblrsnrcs.exe 1788 3120314856.exe 3756 3752238891.exe 3216 3309330154.exe 4288 2559810288.exe -
Processes:
sysmablsvr.exewinblrsnrcs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" winblrsnrcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysmablsvr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winblrsnrcs.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
398615499.exe2182133123.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysmablsvr.exe" 398615499.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Windows\\winblrsnrcs.exe" 2182133123.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
wupgrdsv.exedescription pid process target process PID 3836 set thread context of 3852 3836 wupgrdsv.exe notepad.exe -
Drops file in Windows directory 4 IoCs
Processes:
398615499.exe2182133123.exedescription ioc process File created C:\Windows\sysmablsvr.exe 398615499.exe File opened for modification C:\Windows\sysmablsvr.exe 398615499.exe File created C:\Windows\winblrsnrcs.exe 2182133123.exe File opened for modification C:\Windows\winblrsnrcs.exe 2182133123.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
1500710897.exepowershell.exewupgrdsv.exepowershell.exepid process 5012 1500710897.exe 5012 1500710897.exe 1952 powershell.exe 1952 powershell.exe 5012 1500710897.exe 5012 1500710897.exe 3836 wupgrdsv.exe 3836 wupgrdsv.exe 3812 powershell.exe 3812 powershell.exe 3836 wupgrdsv.exe 3836 wupgrdsv.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1952 powershell.exe Token: SeIncreaseQuotaPrivilege 1952 powershell.exe Token: SeSecurityPrivilege 1952 powershell.exe Token: SeTakeOwnershipPrivilege 1952 powershell.exe Token: SeLoadDriverPrivilege 1952 powershell.exe Token: SeSystemProfilePrivilege 1952 powershell.exe Token: SeSystemtimePrivilege 1952 powershell.exe Token: SeProfSingleProcessPrivilege 1952 powershell.exe Token: SeIncBasePriorityPrivilege 1952 powershell.exe Token: SeCreatePagefilePrivilege 1952 powershell.exe Token: SeBackupPrivilege 1952 powershell.exe Token: SeRestorePrivilege 1952 powershell.exe Token: SeShutdownPrivilege 1952 powershell.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeSystemEnvironmentPrivilege 1952 powershell.exe Token: SeRemoteShutdownPrivilege 1952 powershell.exe Token: SeUndockPrivilege 1952 powershell.exe Token: SeManageVolumePrivilege 1952 powershell.exe Token: 33 1952 powershell.exe Token: 34 1952 powershell.exe Token: 35 1952 powershell.exe Token: 36 1952 powershell.exe Token: SeIncreaseQuotaPrivilege 1952 powershell.exe Token: SeSecurityPrivilege 1952 powershell.exe Token: SeTakeOwnershipPrivilege 1952 powershell.exe Token: SeLoadDriverPrivilege 1952 powershell.exe Token: SeSystemProfilePrivilege 1952 powershell.exe Token: SeSystemtimePrivilege 1952 powershell.exe Token: SeProfSingleProcessPrivilege 1952 powershell.exe Token: SeIncBasePriorityPrivilege 1952 powershell.exe Token: SeCreatePagefilePrivilege 1952 powershell.exe Token: SeBackupPrivilege 1952 powershell.exe Token: SeRestorePrivilege 1952 powershell.exe Token: SeShutdownPrivilege 1952 powershell.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeSystemEnvironmentPrivilege 1952 powershell.exe Token: SeRemoteShutdownPrivilege 1952 powershell.exe Token: SeUndockPrivilege 1952 powershell.exe Token: SeManageVolumePrivilege 1952 powershell.exe Token: 33 1952 powershell.exe Token: 34 1952 powershell.exe Token: 35 1952 powershell.exe Token: 36 1952 powershell.exe Token: SeIncreaseQuotaPrivilege 1952 powershell.exe Token: SeSecurityPrivilege 1952 powershell.exe Token: SeTakeOwnershipPrivilege 1952 powershell.exe Token: SeLoadDriverPrivilege 1952 powershell.exe Token: SeSystemProfilePrivilege 1952 powershell.exe Token: SeSystemtimePrivilege 1952 powershell.exe Token: SeProfSingleProcessPrivilege 1952 powershell.exe Token: SeIncBasePriorityPrivilege 1952 powershell.exe Token: SeCreatePagefilePrivilege 1952 powershell.exe Token: SeBackupPrivilege 1952 powershell.exe Token: SeRestorePrivilege 1952 powershell.exe Token: SeShutdownPrivilege 1952 powershell.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeSystemEnvironmentPrivilege 1952 powershell.exe Token: SeRemoteShutdownPrivilege 1952 powershell.exe Token: SeUndockPrivilege 1952 powershell.exe Token: SeManageVolumePrivilege 1952 powershell.exe Token: 33 1952 powershell.exe Token: 34 1952 powershell.exe Token: 35 1952 powershell.exe Token: 36 1952 powershell.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe3410.exe398615499.exesysmablsvr.exe336917521.exewupgrdsv.exe2182133123.exewinblrsnrcs.exedescription pid process target process PID 2752 wrote to memory of 3252 2752 2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe 3410.exe PID 2752 wrote to memory of 3252 2752 2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe 3410.exe PID 2752 wrote to memory of 3252 2752 2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe 3410.exe PID 3252 wrote to memory of 4248 3252 3410.exe 398615499.exe PID 3252 wrote to memory of 4248 3252 3410.exe 398615499.exe PID 3252 wrote to memory of 4248 3252 3410.exe 398615499.exe PID 4248 wrote to memory of 4464 4248 398615499.exe sysmablsvr.exe PID 4248 wrote to memory of 4464 4248 398615499.exe sysmablsvr.exe PID 4248 wrote to memory of 4464 4248 398615499.exe sysmablsvr.exe PID 4464 wrote to memory of 1444 4464 sysmablsvr.exe 3130218858.exe PID 4464 wrote to memory of 1444 4464 sysmablsvr.exe 3130218858.exe PID 4464 wrote to memory of 1444 4464 sysmablsvr.exe 3130218858.exe PID 4464 wrote to memory of 5024 4464 sysmablsvr.exe 336917521.exe PID 4464 wrote to memory of 5024 4464 sysmablsvr.exe 336917521.exe PID 4464 wrote to memory of 5024 4464 sysmablsvr.exe 336917521.exe PID 5024 wrote to memory of 5012 5024 336917521.exe 1500710897.exe PID 5024 wrote to memory of 5012 5024 336917521.exe 1500710897.exe PID 4464 wrote to memory of 4776 4464 sysmablsvr.exe 15548735.exe PID 4464 wrote to memory of 4776 4464 sysmablsvr.exe 15548735.exe PID 4464 wrote to memory of 4776 4464 sysmablsvr.exe 15548735.exe PID 4464 wrote to memory of 1636 4464 sysmablsvr.exe 2182133123.exe PID 4464 wrote to memory of 1636 4464 sysmablsvr.exe 2182133123.exe PID 4464 wrote to memory of 1636 4464 sysmablsvr.exe 2182133123.exe PID 3836 wrote to memory of 3852 3836 wupgrdsv.exe notepad.exe PID 1636 wrote to memory of 2080 1636 2182133123.exe winblrsnrcs.exe PID 1636 wrote to memory of 2080 1636 2182133123.exe winblrsnrcs.exe PID 1636 wrote to memory of 2080 1636 2182133123.exe winblrsnrcs.exe PID 2080 wrote to memory of 1788 2080 winblrsnrcs.exe 3120314856.exe PID 2080 wrote to memory of 1788 2080 winblrsnrcs.exe 3120314856.exe PID 2080 wrote to memory of 1788 2080 winblrsnrcs.exe 3120314856.exe PID 2080 wrote to memory of 3756 2080 winblrsnrcs.exe 3752238891.exe PID 2080 wrote to memory of 3756 2080 winblrsnrcs.exe 3752238891.exe PID 2080 wrote to memory of 3756 2080 winblrsnrcs.exe 3752238891.exe PID 2080 wrote to memory of 3216 2080 winblrsnrcs.exe 3309330154.exe PID 2080 wrote to memory of 3216 2080 winblrsnrcs.exe 3309330154.exe PID 2080 wrote to memory of 3216 2080 winblrsnrcs.exe 3309330154.exe PID 2080 wrote to memory of 4288 2080 winblrsnrcs.exe 2559810288.exe PID 2080 wrote to memory of 4288 2080 winblrsnrcs.exe 2559810288.exe PID 2080 wrote to memory of 4288 2080 winblrsnrcs.exe 2559810288.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3468
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C:\Users\Admin\AppData\Local\Temp\2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-19_79d41e803ff07bb5a9cbe4171a4fd09d_bkransomware.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Users\Admin\AppData\Local\Temp\3410.exe"C:\Users\Admin\AppData\Local\Temp\3410.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3252 -
C:\Users\Admin\AppData\Local\Temp\398615499.exeC:\Users\Admin\AppData\Local\Temp\398615499.exe4⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4248 -
C:\Windows\sysmablsvr.exeC:\Windows\sysmablsvr.exe5⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious use of WriteProcessMemory
PID:4464 -
C:\Users\Admin\AppData\Local\Temp\3130218858.exeC:\Users\Admin\AppData\Local\Temp\3130218858.exe6⤵
- Executes dropped EXE
PID:1444
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C:\Users\Admin\AppData\Local\Temp\336917521.exeC:\Users\Admin\AppData\Local\Temp\336917521.exe6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Users\Admin\AppData\Local\Temp\1500710897.exeC:\Users\Admin\AppData\Local\Temp\1500710897.exe7⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:5012
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C:\Users\Admin\AppData\Local\Temp\15548735.exeC:\Users\Admin\AppData\Local\Temp\15548735.exe6⤵
- Executes dropped EXE
PID:4776
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C:\Users\Admin\AppData\Local\Temp\2182133123.exeC:\Users\Admin\AppData\Local\Temp\2182133123.exe6⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Windows\winblrsnrcs.exeC:\Windows\winblrsnrcs.exe7⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Users\Admin\AppData\Local\Temp\3120314856.exeC:\Users\Admin\AppData\Local\Temp\3120314856.exe8⤵
- Executes dropped EXE
PID:1788
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C:\Users\Admin\AppData\Local\Temp\3752238891.exeC:\Users\Admin\AppData\Local\Temp\3752238891.exe8⤵
- Executes dropped EXE
PID:3756
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C:\Users\Admin\AppData\Local\Temp\3309330154.exeC:\Users\Admin\AppData\Local\Temp\3309330154.exe8⤵
- Executes dropped EXE
PID:3216
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C:\Users\Admin\AppData\Local\Temp\2559810288.exeC:\Users\Admin\AppData\Local\Temp\2559810288.exe8⤵
- Executes dropped EXE
PID:4288
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#llzqlmcx#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Windows Upgrade Manager' /tr '''C:\Users\Admin\Windows Upgrade\wupgrdsv.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Windows Upgrade\wupgrdsv.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Windows Upgrade Manager' -RunLevel 'Highest' -Force; }2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1952
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C:\Windows\System32\schtasks.exeC:\Windows\System32\schtasks.exe /run /tn "Windows Upgrade Manager"2⤵PID:1792
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#llzqlmcx#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Windows Upgrade Manager' /tr '''C:\Users\Admin\Windows Upgrade\wupgrdsv.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Windows Upgrade\wupgrdsv.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Windows Upgrade Manager' -RunLevel 'Highest' -Force; }2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3812
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C:\Windows\System32\notepad.exeC:\Windows\System32\notepad.exe2⤵PID:3852
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C:\Users\Admin\Windows Upgrade\wupgrdsv.exe"C:\Users\Admin\Windows Upgrade\wupgrdsv.exe"1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3836
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3KB
MD5fee026663fcb662152188784794028ee
SHA13c02a26a9cb16648fad85c6477b68ced3cb0cb45
SHA256dbd4136bc342e3e92902ec3a30d165452c82997a7ae24ac90775e42d88959e6b
SHA5127b12bd5c8fc4356b9123d6586b4980cf76012663b41c0dab6f6f21567e2f4005c5bcea2cc2158d157e4f801a281f3e04bad3774cddb3122db309ccf662184bd6
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Filesize
1KB
MD5fc35bf2367ee5c6feb084ab39f5c26eb
SHA1cd9742c05391a92780a81fe836797a5909c7f9c1
SHA2567ad08f1c2e7df4102eb3a6d213f4a0c245300c275fd53e463655a8ab9fa3ec64
SHA5120b6662ea93907902c9f5db98bed4e9d322a69e7b8df921f6b8bd8026fdbfa556b0afe29013e3ecc8982a6339c48b4fe371ba587f02c39de72cb3840ed0e6747b
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Filesize
5.4MB
MD541ab08c1955fce44bfd0c76a64d1945a
SHA12b9cb05f4de5d98c541d15175d7f0199cbdd0eea
SHA256dd12cb27b3867341bf6ca48715756500d3ec56c19b21bb1c1290806aa74cb493
SHA51238834ae703a8541b4fec9a1db94cfe296ead58649bb1d4873b517df14d0c6a9d25e49ff04c2bf6bb0188845116a4e894aae930d849f9be8c98d2ce51da1ef116
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Filesize
11KB
MD5cafd277c4132f5d0f202e7ea07a27d5c
SHA172c8c16a94cce56a3e01d91bc1276dafc65b351d
SHA256e5162fa594811f0f01fc76f4acbd9fe99b2265df9cfcbc346023f28775c19f1e
SHA5127c87d1dec61b78e0f223e8f9fec019d96509813fa6d96129289aab00b2d6f05bf91fe1fafd680b7d9e746f4c2c8cbe48a3028bcaad479048d00d79a19f71b196
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Filesize
86KB
MD5fe1e93f12cca3f7c0c897ef2084e1778
SHA1fb588491ddad8b24ea555a6a2727e76cec1fade3
SHA2562ebc4a92f4fdc27d4ab56e57058575a8b18adb076cbd30feea2ecdc8b7fcd41f
SHA51236e0524c465187ae9ad207c724aee45bcd61cfd3fa66a79f9434d24fcbadc0a743834d5e808e6041f3bd88e75deb5afd34193574f005ed97e4b17c6b0388cb93
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Filesize
18KB
MD530dca8b68825d5b3db7a685aa3da0a13
SHA107320822d14d6caf8825dd6d806c0cde398584f3
SHA256f2dc635cb5fe8b8815ea98d909b67016975ca8e5a43cb39e47595ecd01038a96
SHA512b5f3be086d3f7c751028d8d8a025069743b2472cec10252627f5583492383a5a865e88ad5839d83bf3a3c31b5b630753e77a2c02433d7fbe90aa11acd0f35f0c
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Filesize
8KB
MD587b22e975994246dc5b7c2a3adbf85a5
SHA11e6528987190f0f5188240cdac553388c39e8590
SHA25617399263a05a9144c1571e8ef88175fd08c61a38e3fcb3a955279d4a2bb9a919
SHA51258c33379879fc75679902d1fe3db0bf1c854151cb6e4bf10496a1d657a8778699be70976bd8bba1ddd3949b24b6ae44cbc0421dd0a8cea13ef5e00179d6599db
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Filesize
88KB
MD5ababca6d12d96e8dd2f1d7114b406fae
SHA1dcd9798e83ec688aacb3de8911492a232cb41a32
SHA256a992920e64a64763f3dd8c2a431a0f5e56e5b3782a1496de92bc80ee71cca5ba
SHA512b7fc70c176bdc74cf68b14e694f3e53142e64d39bd6d3e0f2e3a74ce3178ea606f92f760d21db69d72ae6677545a47c7bf390fb65cd5247a48e239f6ae8f7b8f
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Filesize
8KB
MD59b8a3fb66b93c24c52e9c68633b00f37
SHA12a9290e32d1582217eac32b977961ada243ada9a
SHA2568a169cf165f635ecb6c55cacecb2c202c5fc6ef5fa82ec9cdb7d4b0300f35293
SHA512117da1ec9850212e4cafce6669c2cfffc8078627f5c3ccdfd6a1bf3bee2d351290071087a4c206578d23852fa5e69c2ebefd71905c85b1eaed4220932bb71a39
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Filesize
10KB
MD56567b839ec69322ba1aa41b15fbd1e64
SHA10a2a0770afe094765a5eb88f6201847bf642bea9
SHA2568a4b87ed94fc50767d0bc91291a8b8a436b941b273b29ab0d442ba1cc10b76fb
SHA5122e4798244bf3891beea64ee0b0d106c6f47b7c7d6daf222af6192874dc0ef67491c82e93821c1ff9fbd25cf9ec50178e959adb466b210ff9754dd4e8387a30cf
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Filesize
9KB
MD58d8e6c7952a9dc7c0c73911c4dbc5518
SHA19098da03b33b2c822065b49d5220359c275d5e94
SHA256feb4c3ae4566f0acbb9e0f55417b61fefd89dc50a4e684df780813fb01d61278
SHA51291a573843c28dd32a9f31a60ba977f9a3d4bb19ffd1b7254333e09bcecef348c1b3220a348ebb2cb08edb57d56cb7737f026519da52199c9dc62c10aea236645
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Filesize
88KB
MD54505daf4c08fc8e8e1380911e98588aa
SHA1d990eb1b2ccbb71c878944be37923b1ebd17bc72
SHA256a2139600c569365149894405d411ea1401bafc8c7e8af1983d046cf087269c40
SHA512bb57d11150086c3c61f9a8fdd2511e3e780a24362183a6b833f44484238451f23b74b244262009f38a8baa7254d07dfdd9d4209efcf426dfd4e651c47f2f8cec
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82