7c93ceb712e21f475f5f1177f486134a68c93b1b225355522df64415cbd7942a

General

Target

adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
Size

63KB
MD5

adcd3bd5c6b1a479db5af9138a9a6980
SHA1

1db9197b52e23d51b594ea04baf89166b94e8eef
SHA256

7c93ceb712e21f475f5f1177f486134a68c93b1b225355522df64415cbd7942a
SHA512

7539c62475b29c7cac1ae4cd201b021e5f44c5ee26a69e1ca2be81518377c2ae9cd9c03045dc8d18ad9e06cb3258851450a3acdcc605fc510bc9514bebcdba0d
SSDEEP

768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/24WvgMb7rAY:sUNHFKQbIkHvGMdOp4Zu7MY

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

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

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\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

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

pid	Process
1824	rmass.exe
2092	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
1824	rmass.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2392-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/files/0x000b0000000141a2-4.dat	upx
behavioral1/memory/2392-10-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/1824-21-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/1824-78-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2092-94-0x0000000000400000-0x0000000000412000-memory.dmp	upx

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

description	ioc	Process
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
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

Drops file in System32 directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\RECOVER32.DLL	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\ntdbg.exe	rmass.exe
File created	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File created	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\rmass.exe	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe

Drops file in Program Files directory 3 IoCs

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1824	rmass.exe
1824	rmass.exe
1824	rmass.exe
2092	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
Token: SeDebugPrivilege	1824	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 1824	2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe	28
PID 2392 wrote to memory of 1824	2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe	28
PID 2392 wrote to memory of 1824	2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe	28
PID 2392 wrote to memory of 1824	2392	adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe	28
PID 1824 wrote to memory of 436	1824	rmass.exe	5
PID 1824 wrote to memory of 1276	1824	rmass.exe	21
PID 1824 wrote to memory of 2092	1824	rmass.exe	29
PID 1824 wrote to memory of 2092	1824	rmass.exe	29
PID 1824 wrote to memory of 2092	1824	rmass.exe	29
PID 1824 wrote to memory of 2092	1824	rmass.exe	29

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1276
- C:\Users\Admin\AppData\Local\Temp\adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2392
- - 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:1824
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2092

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

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
65KB

MD5
ce8edfd5dcc9587c24513dcda94554b6

SHA1
962eb952542a51de6ef8c23619440121a16f0219

SHA256
ad0e47b9790eae1890e477889b9ffc3c9b2e34d314839f289e005b56d0050d8e

SHA512
98cb80bdec2dc67f544e57b884677504617027fb4b0ca654be3ffd6bcecfbafcae8d3bc7c12956750bfa4c82222e360ad2449b5a114ec76c0970a8da7254220c

Download Submit
C:\Windows\SysWOW64\ntdbg.exe

Filesize
66KB

MD5
b2ac7a0a03883b8df9e4b5d4f86cffdc

SHA1
e348895c4b7dd33b5bb26cccae335bf4cc12fc1d

SHA256
3506b20660f341cd5850c1c7de4da08489fd5029ee08a154dc3c76164e09bd25

SHA512
5e1dd82617bd6ebe05fae7e3407f70c34e7eb6f837633db83ea3046afc622243b83a1e7a636b8c4b75f1faa21bb97f58eb2ec61fac1c63dba91daf356bdc2c89

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
63KB

MD5
adcd3bd5c6b1a479db5af9138a9a6980

SHA1
1db9197b52e23d51b594ea04baf89166b94e8eef

SHA256
7c93ceb712e21f475f5f1177f486134a68c93b1b225355522df64415cbd7942a

SHA512
7539c62475b29c7cac1ae4cd201b021e5f44c5ee26a69e1ca2be81518377c2ae9cd9c03045dc8d18ad9e06cb3258851450a3acdcc605fc510bc9514bebcdba0d

Download Submit
memory/1824-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1824-78-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2092-94-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2392-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2392-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads