a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14

General

Target

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Size

128KB
MD5

515f63b6647a633f0e5246e6b1c06263
SHA1

c183a64ee7e664f6e07fdf555f1130b03e6ac32c
SHA256

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14
SHA512

ec3af034fcede6ebe71e90bca0de3b18d3d9bfaf598e082538a8ba34d8297b63f0b0c56c9f422f2d5ba9f8b29af3b073c2d6a5ad18e931dcc14a8f086d8d3808
SSDEEP

1536:+Sk8uBI8OTta097n9Is9Flc4IE3IezPoVTTqtFhUpHnkHUS65BciumHnXtk:zk8uNOTs0BvHWAotqbvBmHS

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:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exeniohu.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	niohu.exe

Executes dropped EXE 1 IoCs

Processes:

niohu.exe

pid process

4372 niohu.exe

pid	process
4372	niohu.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

Adds Run key to start application 2 TTPs 58 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

niohu.exea6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /g"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /x"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /z"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /r"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /o"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /t"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /h"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /n"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /z"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /j"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /j"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /u"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /o"	niohu.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /b"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /w"	niohu.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /f"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /p"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /q"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /v"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /e"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /y"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /k"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /c"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /f"	niohu.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /h"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /s"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /c"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /e"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /q"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /l"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /x"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /t"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /w"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /y"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /d"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /k"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /a"	niohu.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /r"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /l"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /i"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /g"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /a"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /p"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /v"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /z"	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /m"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /b"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /u"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /s"	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /m"	niohu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /i"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /d"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /s"	niohu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niohu = "C:\\Users\\Admin\\niohu.exe /n"	niohu.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:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exeniohu.exe

pid	process
4884	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
4884	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe
4372	niohu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exeniohu.exe

pid process

4884 a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
4372 niohu.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

description	pid	process	target process
PID 4884 wrote to memory of 4372	4884	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	niohu.exe
PID 4884 wrote to memory of 4372	4884	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	niohu.exe
PID 4884 wrote to memory of 4372	4884	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	niohu.exe

C:\Users\Admin\AppData\Local\Temp\a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
"C:\Users\Admin\AppData\Local\Temp\a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4884

C:\Users\Admin\niohu.exe
"C:\Users\Admin\niohu.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:4372

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\niohu.exe

Filesize
128KB

MD5
b026b4642eaf6329bb68a722d62b7e59

SHA1
6ebbe313c88d2104bff8ae3f66534ff875bbd021

SHA256
3297d22084af05726efe61d78735d279abee5c3131c6c22038a55be55a5029a5

SHA512
f6d0e21b598e9ac20eee5ebf2e523b6b39241a469642a124930b07fa09b8a1c98397e078cc469361b28e0778ce75015f3b3b563976265feabe4d7c3a5fa2c5bb

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

Filesize
128KB

MD5
b026b4642eaf6329bb68a722d62b7e59

SHA1
6ebbe313c88d2104bff8ae3f66534ff875bbd021

SHA256
3297d22084af05726efe61d78735d279abee5c3131c6c22038a55be55a5029a5

SHA512
f6d0e21b598e9ac20eee5ebf2e523b6b39241a469642a124930b07fa09b8a1c98397e078cc469361b28e0778ce75015f3b3b563976265feabe4d7c3a5fa2c5bb

Download Submit
memory/4372-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads