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\FirewallDisableNotify = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	acvased-dum.exe
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

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 (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\IsInstalled = "1"	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\StubPath = "C:\\Windows\\system32\\outvoaras-eafeas.exe"	acvased-dum.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}	acvased-dum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	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

1112 acvased-dum.exe
3068 acvased-dum.exe

Loads dropped DLL 3 IoCs

Processes:

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exeacvased-dum.exe

pid	process
912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
1112	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\FirewallDisableNotify = "25600"	acvased-dum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	acvased-dum.exe
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

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

acvased-dum.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	acvased-dum.exe
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

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 opened for modification	C:\Windows\SysWOW64\ihroaxear.exe	acvased-dum.exe
File opened for modification	C:\Windows\SysWOW64\outvoaras-eafeas.exe	acvased-dum.exe
File created	C:\Windows\SysWOW64\eaklunix.dll	acvased-dum.exe
File opened for modification	C:\Windows\SysWOW64\acvased-dum.exe	acvased-dum.exe
File created	C:\Windows\SysWOW64\acvased-dum.exe	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
File created	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
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
3068	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe
1112	acvased-dum.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exeacvased-dum.exe

description	pid	process
Token: SeDebugPrivilege	912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
Token: SeDebugPrivilege	1112	acvased-dum.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exeacvased-dum.exe

description	pid	process	target process
PID 912 wrote to memory of 1112	912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 912 wrote to memory of 1112	912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 912 wrote to memory of 1112	912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 912 wrote to memory of 1112	912	81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe	acvased-dum.exe
PID 1112 wrote to memory of 436	1112	acvased-dum.exe	winlogon.exe
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 3068	1112	acvased-dum.exe	acvased-dum.exe
PID 1112 wrote to memory of 3068	1112	acvased-dum.exe	acvased-dum.exe
PID 1112 wrote to memory of 3068	1112	acvased-dum.exe	acvased-dum.exe
PID 1112 wrote to memory of 3068	1112	acvased-dum.exe	acvased-dum.exe
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE
PID 1112 wrote to memory of 1212	1112	acvased-dum.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212

C:\Users\Admin\AppData\Local\Temp\81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe
"C:\Users\Admin\AppData\Local\Temp\81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477.exe"
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

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
- Loads dropped DLL
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112

C:\Windows\SysWOW64\acvased-dum.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

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Downloads

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
e53ca5bdee43a561d3046a03264fa718

SHA1
8ab03893f881e46e0709bd2e7af74f194704d62e

SHA256
55806fca1236f11e0a72ad0c0791c5d69c0b7fe76b41b686ccaf8be56daa0fc5

SHA512
de7e329d62ef9542022f809d0bdb371832c5ab33614bac80978c021e7a60c57d0a839802e272958bfb63cf5c438777ab4e640b14c1f139cd28cf66b0cdcc9207

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

Filesize
73KB

MD5
e0c794563ffb85e72fe297f03a548ec7

SHA1
aecf3d3ae92b3b128558ae64588072bc2357d434

SHA256
ca991d71891b37ce0e084ea61a3c00ce4b264f230ac1959dc5156dde28bdd87b

SHA512
f74414c1545b4c0608b02bee6fbba20e887455a7862357d06da6745b6b1cb6cd0c0ae135d8f5366616d524cfeebd89d85764cc31e3ba535c5d715ae3ad0544e6

Download Submit
\Windows\SysWOW64\acvased-dum.exe

Filesize
71KB

MD5
77f36588402f1fabb53b174a3b606d80

SHA1
5dbfa19a58e510ba4c5728512eebf82baa4b0747

SHA256
81ebbd4026784f7511aa9a86f322b61d02e5819983915e004061309d14027477

SHA512
0e2c4045551c2558a14eeba356710cd90ab7806411f8a5a8be1d4c476fdacdccc658b43133b5290cdcdabb9d5de5cfd06f6cad37ffbc836be1977e1bea67a055

Download Submit
memory/912-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1112-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads