835db0285e02bfc7b1ddd6928ff0947a3320bc8e035e450c38e969ecd37e170f

General

Target

408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
Size

46KB
MD5

408279eb29ace888de797a2438d55dd0
SHA1

4616d28aac86e4110046138da53dc1804bd38d9d
SHA256

835db0285e02bfc7b1ddd6928ff0947a3320bc8e035e450c38e969ecd37e170f
SHA512

56e9072b51321e1109c15e2bf4c29b32425f86c43f7e3fee5cb687b3a823ae8f6d78c7f46a2a24b012dd66736ad1e53a601805b140e275c73f0a75ced8aaed96
SSDEEP

768:jIUiy81EmX40ioo4v1UycfMYhc91KAf3mDYQKTjnl2NWcIXsaL5ZorJtbpttIkJ4:jwy81Emoo1UycfMYhc91Lf3mDYQKTh2g

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:

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4C4C5844-4845-5743-4C4C-584448455743}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4C4C5844-4845-5743-4C4C-584448455743}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4C4C5844-4845-5743-4C4C-584448455743}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4C4C5844-4845-5743-4C4C-584448455743}\IsInstalled = "1"	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

2420 rmass.exe
1364 rmass.exe

pid	process
2420	rmass.exe
1364	rmass.exe

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
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

Processes:

rmass.exe408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\aset32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File created	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\rmass.exe	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\rmass.exe	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File created	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.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 8 IoCs

Processes:

rmass.exermass.exe

pid process

2420 rmass.exe
2420 rmass.exe
2420 rmass.exe
2420 rmass.exe
2420 rmass.exe
2420 rmass.exe
1364 rmass.exe
1364 rmass.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rmass.exe

description pid process

Token: SeDebugPrivilege 2420 rmass.exe

pid	process
2420	rmass.exe
2420	rmass.exe
2420	rmass.exe
2420	rmass.exe
2420	rmass.exe
2420	rmass.exe
1364	rmass.exe
1364	rmass.exe

description	pid	process
Token: SeDebugPrivilege	2420	rmass.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exermass.exe

description	pid	process	target process
PID 1928 wrote to memory of 2420	1928	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 1928 wrote to memory of 2420	1928	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 1928 wrote to memory of 2420	1928	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 2420 wrote to memory of 1364	2420	rmass.exe	rmass.exe
PID 2420 wrote to memory of 1364	2420	rmass.exe	rmass.exe
PID 2420 wrote to memory of 1364	2420	rmass.exe	rmass.exe
PID 2420 wrote to memory of 612	2420	rmass.exe	winlogon.exe
PID 2420 wrote to memory of 3416	2420	rmass.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3416
- C:\Users\Admin\AppData\Local\Temp\408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1928
- - C:\Windows\SysWOW64\rmass.exe
    "C:\Windows\SysWOW64\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
    - 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:2420
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1364

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
46KB

MD5
c00ef6737ad62dedaebe72e943727fe9

SHA1
7d1a241b908c09075719c101d69fa04000f20ab1

SHA256
364a873d6b480e0a6b37895456b2ef0714956fb1b5347fbea13fdc05730fb726

SHA512
c37d7781cd937123ad69f467cf19d305ddc4cf64006906304fb036a2ca1ab4670cef80cbcfc06eb3b1cfda659c588d05bd42e5f4c240416d4624d79f8791133d

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

Filesize
47KB

MD5
eb02263a7dabe6a748d78dd7181095a4

SHA1
8f59eb0bbd204049171a98c4274118dad2b2fabb

SHA256
5492991146dac150ea8f46f5ac0f992b567a56453fce2ad997db7a71b752b8f5

SHA512
b67e917dc77827a3e7503c3ff16a7eaf628783d75a39a382af020799e2fbb4a35014b0f1b01f3c88ffe88eb7c843a1153ff864b4dd8b5ba383fb849ca17b176b

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

Filesize
43KB

MD5
ddc611cd8bbac86f0b4480d7dbb7dbca

SHA1
7cdb6fffc1c8e7ad6fa3f372f0107d1594577df6

SHA256
77bceeef49c1bc513253680c13ef388148febece550392864a531f89b3795631

SHA512
62757f0e928691fb994f68f16f849c5dc71e06f5ab414ba51b718308a45a969cab0873a1fa462301d5e3ed778177da7ca788b2c881746d6011bd15537fce4ab8

Download Submit
C:\Windows\System32\drivers\etc\hosts

Filesize
1KB

MD5
6f47b62de25d1745e296a06b3f98ed19

SHA1
a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

SHA256
15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

SHA512
dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

Download Submit
memory/1364-48-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1928-3-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2420-47-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads