81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477

General

Target

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
Size

71KB
MD5

77f36588402f1fabb53b174a3b606d80
SHA1

5dbfa19a58e510ba4c5728512eebf82baa4b0747
SHA256

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477
SHA512

0e2c4045551c2558a14eeba356710cd90ab7806411f8a5a8be1d4c476fdacdccc658b43133b5290cdcdabb9d5de5cfd06f6cad37ffbc836be1977e1bea67a055
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8sl21g:Olg35GTslA5t3/w8TK

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

acvased-dum.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	acvased-dum.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

acvased-dum.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}\StubPath = "C:\\Windows\\system32\\outvoaras-eafeas.exe"	acvased-dum.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}\IsInstalled = "1"	acvased-dum.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

acvased-dum.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ihroaxear.exe"	acvased-dum.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	acvased-dum.exe

Executes dropped EXE 2 IoCs

Processes:

acvased-dum.exeacvased-dum.exe

pid process

1380 acvased-dum.exe
4628 acvased-dum.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

acvased-dum.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	acvased-dum.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

acvased-dum.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	acvased-dum.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\eaklunix.dll"	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	acvased-dum.exe

Drops file in System32 directory 9 IoCs

Processes:

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exeacvased-dum.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\acvased-dum.exe	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
File created	C:\Windows\SysWOW64\ihroaxear.exe	acvased-dum.exe
File opened for modification	C:\Windows\SysWOW64\outvoaras-eafeas.exe	acvased-dum.exe
File opened for modification	C:\Windows\SysWOW64\acvased-dum.exe	acvased-dum.exe
File created	C:\Windows\SysWOW64\eaklunix.dll	acvased-dum.exe
File created	C:\Windows\SysWOW64\acvased-dum.exe	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
File opened for modification	C:\Windows\SysWOW64\ihroaxear.exe	acvased-dum.exe
File created	C:\Windows\SysWOW64\outvoaras-eafeas.exe	acvased-dum.exe
File opened for modification	C:\Windows\SysWOW64\eaklunix.dll	acvased-dum.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

acvased-dum.exeacvased-dum.exe

pid	process
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
4628	acvased-dum.exe
4628	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe
1380	acvased-dum.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exeacvased-dum.exe

description	pid	process
Token: SeDebugPrivilege	64	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
Token: SeDebugPrivilege	1380	acvased-dum.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exeacvased-dum.exe

description	pid	process	target process
PID 64 wrote to memory of 1380	64	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 64 wrote to memory of 1380	64	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 64 wrote to memory of 1380	64	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 1380 wrote to memory of 624	1380	acvased-dum.exe	winlogon.exe
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 4628	1380	acvased-dum.exe	acvased-dum.exe
PID 1380 wrote to memory of 4628	1380	acvased-dum.exe	acvased-dum.exe
PID 1380 wrote to memory of 4628	1380	acvased-dum.exe	acvased-dum.exe
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE
PID 1380 wrote to memory of 3516	1380	acvased-dum.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:624

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3516

C:\Users\Admin\AppData\Local\Temp\81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
"C:\Users\Admin\AppData\Local\Temp\81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe"
2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:64

C:\Windows\SysWOW64\acvased-dum.exe
"C:\Windows\system32\acvased-dum.exe"
3⤵
- Windows security bypass
- Modifies Installed Components in the registry
- Sets file execution options in registry
- Executes dropped EXE
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1380

C:\Windows\SysWOW64\acvased-dum.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4628

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Windows\SysWOW64\acvased-dum.exe
Filesize
71KB

MD5
77f36588402f1fabb53b174a3b606d80

SHA1
5dbfa19a58e510ba4c5728512eebf82baa4b0747

SHA256
81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477

SHA512
0e2c4045551c2558a14eeba356710cd90ab7806411f8a5a8be1d4c476fdacdccc658b43133b5290cdcdabb9d5de5cfd06f6cad37ffbc836be1977e1bea67a055

Download Submit
C:\Windows\SysWOW64\eaklunix.dll
Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
C:\Windows\SysWOW64\ihroaxear.exe
Filesize
74KB

MD5
f5bb940df2f5c2f2e4ed1062fd69f27c

SHA1
c9a39d24b849095943416e462737148738b379d9

SHA256
8c690cb6a2401a94b595022448902adadcffe2fd696c727854470bf4612df171

SHA512
ee115dd716bb8757a00d3e83c2b770bcf1e0aa1d886b9d84c69df146ea019310242ae6c96fc25edf009043201b3c1d9ed203931e2eb2c64ed47ff8dcd4d7b5e6

Download Submit
C:\Windows\SysWOW64\outvoaras-eafeas.exe
Filesize
73KB

MD5
ed042e17e6073948991e1db7cc41ae9f

SHA1
26911a6fdf45d1a112d65bced2054f85bb373428

SHA256
cb3f43873887b5e2e50e9aeea804c82628252af8152b4351aedb021865ab7ca1

SHA512
0d163fccb97594c32ee5c7aa831cdebfedb4dcf741c6f8a3822860778b49bc3dbfef9a8c4e8a74a4c660d3498057312b3f03a5dfcce177b25ae3cbad6fd3ce4a

Download Submit
memory/64-6-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1380-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4628-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads