Analysis
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max time kernel
151s -
max time network
40s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 18:46
Static task
static1
Behavioral task
behavioral1
Sample
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe
Resource
win10v2004-20221111-en
General
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Target
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe
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Size
500KB
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MD5
01e3617a09cca6d34fe3a39d34adc974
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SHA1
cac71a437ef1b9411488bdb4959403c9d859d6dd
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SHA256
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1
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SHA512
3d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641
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SSDEEP
12288:s4vvfwYw2Q79D6H9QkbURy/ZjbbkPrreri0H+/5SiufX:s+fTb9tISiuf
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
tasKhost.exepid process 288 tasKhost.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Drops startup file 2 IoCs
Processes:
tasKhost.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\08bc187b2184bd9ab682246d641afdd6.exe tasKhost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\08bc187b2184bd9ab682246d641afdd6.exe tasKhost.exe -
Loads dropped DLL 2 IoCs
Processes:
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exepid process 1064 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe 1064 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe -
Adds Run key to start application 2 TTPs 6 IoCs
Processes:
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exetasKhost.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingDocumentos\\18.exe" 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run tasKhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingDocumentos\\18.exe" tasKhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\08bc187b2184bd9ab682246d641afdd6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\tasKhost.exe\" .." tasKhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\08bc187b2184bd9ab682246d641afdd6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\tasKhost.exe\" .." tasKhost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 19 IoCs
Processes:
tasKhost.exedescription pid process Token: SeDebugPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe Token: 33 288 tasKhost.exe Token: SeIncBasePriorityPrivilege 288 tasKhost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exetasKhost.exedescription pid process target process PID 1064 wrote to memory of 288 1064 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe tasKhost.exe PID 1064 wrote to memory of 288 1064 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe tasKhost.exe PID 1064 wrote to memory of 288 1064 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe tasKhost.exe PID 1064 wrote to memory of 288 1064 6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe tasKhost.exe PID 288 wrote to memory of 1176 288 tasKhost.exe netsh.exe PID 288 wrote to memory of 1176 288 tasKhost.exe netsh.exe PID 288 wrote to memory of 1176 288 tasKhost.exe netsh.exe PID 288 wrote to memory of 1176 288 tasKhost.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe"C:\Users\Admin\AppData\Local\Temp\6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1064 -
C:\Users\Admin\AppData\Roaming\tasKhost.exe"C:\Users\Admin\AppData\Roaming\tasKhost.exe"2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:288 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\tasKhost.exe" "tasKhost.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:1176
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
500KB
MD501e3617a09cca6d34fe3a39d34adc974
SHA1cac71a437ef1b9411488bdb4959403c9d859d6dd
SHA2566cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1
SHA5123d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641
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Filesize
500KB
MD501e3617a09cca6d34fe3a39d34adc974
SHA1cac71a437ef1b9411488bdb4959403c9d859d6dd
SHA2566cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1
SHA5123d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641
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Filesize
500KB
MD501e3617a09cca6d34fe3a39d34adc974
SHA1cac71a437ef1b9411488bdb4959403c9d859d6dd
SHA2566cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1
SHA5123d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641
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Filesize
500KB
MD501e3617a09cca6d34fe3a39d34adc974
SHA1cac71a437ef1b9411488bdb4959403c9d859d6dd
SHA2566cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1
SHA5123d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641