b2d732f13a297452c2162b3dd66563b8680db7a578cdb2f9dc764cdec416a676

General

Target

1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
Size

21KB
MD5

1d34480daa71363b6ede46541d60b840
SHA1

5c9eb30c26d7aaf8706c555dfafff5158ff0ff68
SHA256

b2d732f13a297452c2162b3dd66563b8680db7a578cdb2f9dc764cdec416a676
SHA512

f1eb8d14148ebdc775091838c12d8ae137a54a9c0480abacb9395a40b5441850089b842a47384abe5e2bd5a516902d2c65ab8d6c9803e39ab7e70bb7cfe44747
SSDEEP

384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvX8Mb7a6M/F7:rRkiLw3HsDSARGG/MMb7rCd

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

rmass.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "5120"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120"	rmass.exe

Drops file in Drivers directory 1 IoCs

Processes:

rmass.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts rmass.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	rmass.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rmass.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{495A4B43-4b4f-5450-495A-4B434B4F5450}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{495A4B43-4b4f-5450-495A-4B434B4F5450}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{495A4B43-4b4f-5450-495A-4B434B4F5450}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{495A4B43-4b4f-5450-495A-4B434B4F5450}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rmass.exe

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

Executes dropped EXE 2 IoCs

Processes:

rmass.exermass.exe

pid process

2236 rmass.exe
2604 rmass.exe
Loads dropped DLL 3 IoCs

Processes:

1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exermass.exe

pid process

1692 1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
1692 1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
2236 rmass.exe

pid	process
2236	rmass.exe
2604	rmass.exe

pid	process
1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
2236	rmass.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
\Windows\SysWOW64\rmass.exe	upx
behavioral1/memory/1692-5-0x0000000000320000-0x0000000000331000-memory.dmp	upx
behavioral1/memory/2236-14-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1692-12-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2604-27-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2236-61-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2604-62-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

rmass.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "5120"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120"	rmass.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

rmass.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\RECOVER32.DLL"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	rmass.exe

Drops file in System32 directory 12 IoCs

Processes:

1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exermass.exe

description	ioc	process
File created	C:\Windows\SysWOW64\rmass.exe	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\RECOVER32.DLL	rmass.exe
File opened for modification	C:\Windows\SysWOW64\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File created	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File created	C:\Windows\SysWOW64\RECOVER32.DLL	rmass.exe
File opened for modification	C:\Windows\SysWOW64\aset32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	rmass.exe

Drops file in Program Files directory 3 IoCs

Processes:

rmass.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Common Files\System\winrnt.exe	rmass.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\aset32.exe	rmass.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\idbg32.exe	rmass.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rmass.exermass.exe

pid process

2236 rmass.exe
2236 rmass.exe
2236 rmass.exe
2604 rmass.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exermass.exe

description pid process

Token: SeDebugPrivilege 1692 1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
Token: SeDebugPrivilege 2236 rmass.exe

pid	process
2236	rmass.exe
2236	rmass.exe
2236	rmass.exe
2604	rmass.exe

description	pid	process
Token: SeDebugPrivilege	1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
Token: SeDebugPrivilege	2236	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exermass.exe

description	pid	process	target process
PID 1692 wrote to memory of 2236	1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe	rmass.exe
PID 1692 wrote to memory of 2236	1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe	rmass.exe
PID 1692 wrote to memory of 2236	1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe	rmass.exe
PID 1692 wrote to memory of 2236	1692	1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe	rmass.exe
PID 2236 wrote to memory of 436	2236	rmass.exe	winlogon.exe
PID 2236 wrote to memory of 1192	2236	rmass.exe	Explorer.EXE
PID 2236 wrote to memory of 2604	2236	rmass.exe	rmass.exe
PID 2236 wrote to memory of 2604	2236	rmass.exe	rmass.exe
PID 2236 wrote to memory of 2604	2236	rmass.exe	rmass.exe
PID 2236 wrote to memory of 2604	2236	rmass.exe	rmass.exe

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192

C:\Users\Admin\AppData\Local\Temp\1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\1d34480daa71363b6ede46541d60b840_NeikiAnalytics.exe"
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692

C:\Windows\SysWOW64\rmass.exe
"C:\Windows\system32\rmass.exe"
3⤵
- Windows security bypass
- Drops file in Drivers directory
- 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
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236

C:\Windows\SysWOW64\rmass.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2604

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\RECOVER32.DLL
Filesize
5KB

MD5
2b2c28a7a01f9584fe220ef84003427f

SHA1
5fc023df0b5064045eb8de7f2dbe26f07f6fec70

SHA256
9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb

SHA512
39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78

Download Submit
C:\Windows\SysWOW64\ahuy.exe
Filesize
24KB

MD5
3ee7629297cc5f5f67560094cb983ffb

SHA1
a86dd89d1db544c3932320c88e77b5645351c4ab

SHA256
ce0c0dd376632731fa3aef959a396431116620c0876eefe48287de4fe6b5e982

SHA512
f352adc32b0e638f65937507a1f5528b3f335872c04068d665f09a3040ba4e76062515dd87c15b066cbe00cecdf3e8b84031b4d5be68456ef3213ca69ed82fb6

Download Submit
C:\Windows\SysWOW64\ntdbg.exe
Filesize
25KB

MD5
a206acad36d0447c36772e0a08c68209

SHA1
f405b36fdc3a9a84b64e82abe96e3534a182715f

SHA256
4202f5dabc7a794ff89e3e230f639472491c862ea4ca8ab2fc023f14a99bf34d

SHA512
89448d64c447f137a55742064cf4a90412c16c693833a590da4431ee2620cc35981dc9003219a50ba002c7b2ff093384d2cbd4236b03c4e2aaa3584033374d99

Download Submit
C:\Windows\System32\drivers\etc\hosts
Filesize
1KB

MD5
b10b13206b0f2cf3968050072f6979bf

SHA1
699db21ba9cecf3f13ac3d76e22cfa41aa94da80

SHA256
0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4

SHA512
d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d

Download Submit
\Windows\SysWOW64\rmass.exe
Filesize
21KB

MD5
1d34480daa71363b6ede46541d60b840

SHA1
5c9eb30c26d7aaf8706c555dfafff5158ff0ff68

SHA256
b2d732f13a297452c2162b3dd66563b8680db7a578cdb2f9dc764cdec416a676

SHA512
f1eb8d14148ebdc775091838c12d8ae137a54a9c0480abacb9395a40b5441850089b842a47384abe5e2bd5a516902d2c65ab8d6c9803e39ab7e70bb7cfe44747

Download Submit
memory/1692-5-0x0000000000320000-0x0000000000331000-memory.dmp

Filesize
68KB

Download
memory/1692-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1692-12-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2236-14-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2236-26-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/2236-61-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2236-101-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/2604-62-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2604-27-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads