a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5

General

Target

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
Size

92KB
MD5

45422049972105a6304fa2d624358130
SHA1

48c3e94ae31f9b2278a4be2d56fdeff6a5937c6e
SHA256

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5
SHA512

03bc41098ba0c1499ea0d3194ff55e3e53dbd8b57d0b8d17d7d6f745a3a98a05079519a68785a6ec11b2c86b49d776e70cf6c48f8ef84d3d0f8423250b99ed40
SSDEEP

1536:0zX2SaBsTwGDmTkrlyn6qLhbqBO2zk1lF7ySSy26QRwzvDmNmohL:tGHlcYBO2zgStiNohL

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exenueiyul.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	nueiyul.exe

Executes dropped EXE 1 IoCs

Processes:

nueiyul.exe

pid process

472 nueiyul.exe

pid	process
472	nueiyul.exe

Loads dropped DLL 2 IoCs

Processes:

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe

pid	process
1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe

Adds Run key to start application 2 TTPs 28 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

nueiyul.exea27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /y"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /b"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /t"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /u"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /w"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /x"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /n"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /p"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /a"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /g"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /j"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /o"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /k"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /z"	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /h"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /v"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /q"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /r"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /i"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /m"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /z"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /f"	nueiyul.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /c"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /s"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /e"	nueiyul.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\nueiyul = "C:\\Users\\Admin\\nueiyul.exe /l"	nueiyul.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exenueiyul.exe

pid	process
1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe
472	nueiyul.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exenueiyul.exe

pid process

1252 a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
472 nueiyul.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe

description	pid	process	target process
PID 1252 wrote to memory of 472	1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe	nueiyul.exe
PID 1252 wrote to memory of 472	1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe	nueiyul.exe
PID 1252 wrote to memory of 472	1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe	nueiyul.exe
PID 1252 wrote to memory of 472	1252	a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe	nueiyul.exe

C:\Users\Admin\AppData\Local\Temp\a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe
"C:\Users\Admin\AppData\Local\Temp\a27c3cf6d68a8ba21964a158032bf424934a1a079b90c6bbc73dcc3aa0e5d8d5.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252

C:\Users\Admin\nueiyul.exe
"C:\Users\Admin\nueiyul.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:472

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\nueiyul.exe

Filesize
92KB

MD5
ff63165a34026e69c335862b2574081a

SHA1
43d7566441181b404f598cbda5b4019af774f278

SHA256
083db01ad3ccbb7d4deddadff8d83848aa845ee52febffbcda4511a84ccd71c6

SHA512
77f58f0d7f62818fe350b2bb48ec661665ac99e5dbcfd5fe78f98a8b5dd542e2891c372aeaeb11388964dd1e9aab045ee7901fffbe57762c2a45aadaa04fe5b9

Download Submit
C:\Users\Admin\nueiyul.exe

Filesize
92KB

MD5
ff63165a34026e69c335862b2574081a

SHA1
43d7566441181b404f598cbda5b4019af774f278

SHA256
083db01ad3ccbb7d4deddadff8d83848aa845ee52febffbcda4511a84ccd71c6

SHA512
77f58f0d7f62818fe350b2bb48ec661665ac99e5dbcfd5fe78f98a8b5dd542e2891c372aeaeb11388964dd1e9aab045ee7901fffbe57762c2a45aadaa04fe5b9

Download Submit
\Users\Admin\nueiyul.exe

Filesize
92KB

MD5
ff63165a34026e69c335862b2574081a

SHA1
43d7566441181b404f598cbda5b4019af774f278

SHA256
083db01ad3ccbb7d4deddadff8d83848aa845ee52febffbcda4511a84ccd71c6

SHA512
77f58f0d7f62818fe350b2bb48ec661665ac99e5dbcfd5fe78f98a8b5dd542e2891c372aeaeb11388964dd1e9aab045ee7901fffbe57762c2a45aadaa04fe5b9

Download Submit
\Users\Admin\nueiyul.exe

Filesize
92KB

MD5
ff63165a34026e69c335862b2574081a

SHA1
43d7566441181b404f598cbda5b4019af774f278

SHA256
083db01ad3ccbb7d4deddadff8d83848aa845ee52febffbcda4511a84ccd71c6

SHA512
77f58f0d7f62818fe350b2bb48ec661665ac99e5dbcfd5fe78f98a8b5dd542e2891c372aeaeb11388964dd1e9aab045ee7901fffbe57762c2a45aadaa04fe5b9

Download Submit
memory/472-59-0x0000000000000000-mapping.dmp

Download
memory/1252-56-0x0000000076381000-0x0000000076383000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads