a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8

General

Target

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Size

32KB
MD5

c7e2a311a5ca80ba57a1627cf4b147ac
SHA1

171e4136d2547248cac6170dc7a8b9cfc9bd62f2
SHA256

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8
SHA512

1ea1d9806b7aa7dbc370c544c4e82dfc28750558c9f450c81bdc8365d61557486a7bbde13adc423ad799efbd841a396cd5939a04a9fbfa257a8307dd5688c3a4
SSDEEP

384:PQXWtTyg1fJDMVD9ORAtKT5KDBUdrZw7QSc:PgSyg9JwSRGC5eBUrZr

Score

10^/10

evasion trojan

Malware Config

Signatures

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exea6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

Downloads MZ/PE file
Executes dropped EXE 4 IoCs

Processes:

k4.exek4.exek4.exek4.exe

pid process

1512 k4.exe
4896 k4.exe
1512 k4.exe
4896 k4.exe

pid	process
1512	k4.exe
4896	k4.exe
1512	k4.exe
4896	k4.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exea6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 2 IoCs
evasion

Processes:

taskkill.exetaskkill.exe

pid process

628 taskkill.exe
628 taskkill.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

taskkill.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 628 taskkill.exe
Token: SeDebugPrivilege 628 taskkill.exe

pid	process
628	taskkill.exe
628	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	628	taskkill.exe
Token: SeDebugPrivilege	628	taskkill.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exea6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

pid	process
4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.execmd.exea6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.execmd.exe

description	pid	process	target process
PID 4324 wrote to memory of 1512	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 1512	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 4896	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 4896	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 4968	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	cmd.exe
PID 4324 wrote to memory of 4968	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	cmd.exe
PID 4324 wrote to memory of 4968	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	cmd.exe
PID 4968 wrote to memory of 628	4968	cmd.exe	taskkill.exe
PID 4968 wrote to memory of 628	4968	cmd.exe	taskkill.exe
PID 4968 wrote to memory of 628	4968	cmd.exe	taskkill.exe
PID 4324 wrote to memory of 1512	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 1512	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 4896	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 4896	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	k4.exe
PID 4324 wrote to memory of 4968	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	cmd.exe
PID 4324 wrote to memory of 4968	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	cmd.exe
PID 4324 wrote to memory of 4968	4324	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe	cmd.exe
PID 4968 wrote to memory of 628	4968	cmd.exe	taskkill.exe
PID 4968 wrote to memory of 628	4968	cmd.exe	taskkill.exe
PID 4968 wrote to memory of 628	4968	cmd.exe	taskkill.exe

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

Processes:

a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exea6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe

C:\Users\Admin\AppData\Local\Temp\a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
"C:\Users\Admin\AppData\Local\Temp\a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4324

C:\Users\Public\Documents\k4.exe
C:/Users/Public/Documents/k4.exe
2⤵
- Executes dropped EXE
PID:1512

C:\Users\Public\Documents\k4.exe
C:/Users/Public/Documents/k4.exe /D
2⤵
- Executes dropped EXE
PID:4896

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c taskkill /f /t /im k4.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4968

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /t /im k4.exe
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:628

C:\Users\Admin\AppData\Local\Temp\a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe
"C:\Users\Admin\AppData\Local\Temp\a6941755e5b2bd44d696020e8c058581380aa75a1c594bf48e6c2512863b06e8.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4324

C:\Users\Public\Documents\k4.exe
C:/Users/Public/Documents/k4.exe
2⤵
- Executes dropped EXE
PID:1512

C:\Users\Public\Documents\k4.exe
C:/Users/Public/Documents/k4.exe /D
2⤵
- Executes dropped EXE
PID:4896

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c taskkill /f /t /im k4.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4968

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /t /im k4.exe
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:628

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\Documents\k4.exe
Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe
Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe
Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe
Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe
Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe
Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
memory/628-138-0x0000000000000000-mapping.dmp

Download
memory/628-138-0x0000000000000000-mapping.dmp

Download
memory/1512-132-0x0000000000000000-mapping.dmp

Download
memory/1512-132-0x0000000000000000-mapping.dmp

Download
memory/4896-135-0x0000000000000000-mapping.dmp

Download
memory/4896-135-0x0000000000000000-mapping.dmp

Download
memory/4968-137-0x0000000000000000-mapping.dmp

Download
memory/4968-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads