5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4

General

Target

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
Size

168KB
MD5

28081602dffd51b1dc1f7b82ca5244d5
SHA1

92f382e519391fd82e91ef41f8388888ee4ae425
SHA256

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4
SHA512

92814a47299ff3b7df37894e4bc8f409ee5f503de5a723788bcab0ae06bae1995306aff37f4a0d29710aca53afb6e334ec5198c01296e2959f26def6c5a99d07
SSDEEP

3072:ShGs8JkY7SIsyvTlo/11hJl2czGRqxZdxxW970H:ShGDJkYiQlS1NJG6/xJ

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:

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exeniuyef.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	niuyef.exe

Executes dropped EXE 1 IoCs

Processes:

niuyef.exe

pid process

4824 niuyef.exe

pid	process
4824	niuyef.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:

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe

Adds Run key to start application 2 TTPs 54 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

niuyef.exe5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /z"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /B"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /c"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /t"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /d"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /b"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /w"	niuyef.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /a"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /P"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /j"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /i"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /e"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /s"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /W"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /r"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /T"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /H"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /Z"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /S"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /m"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /R"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /Q"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /x"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /V"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /M"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /n"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /g"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /o"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /N"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /v"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /q"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /l"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /y"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /C"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /o"	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /f"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /Y"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /O"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /A"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /E"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /X"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /K"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /D"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /I"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /h"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /L"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /k"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /u"	niuyef.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /U"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /p"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /G"	niuyef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuyef = "C:\\Users\\Admin\\niuyef.exe /F"	niuyef.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:

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exeniuyef.exe

pid	process
3344	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
3344	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe
4824	niuyef.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exeniuyef.exe

pid process

3344 5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
4824 niuyef.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe

description	pid	process	target process
PID 3344 wrote to memory of 4824	3344	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe	niuyef.exe
PID 3344 wrote to memory of 4824	3344	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe	niuyef.exe
PID 3344 wrote to memory of 4824	3344	5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe	niuyef.exe

C:\Users\Admin\AppData\Local\Temp\5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.exe
"C:\Users\Admin\AppData\Local\Temp\5c21324520a053fcdc2ef427900763d1280ca65c64365bde52b0b722b38030f4.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:3344
- C:\Users\Admin\niuyef.exe
  "C:\Users\Admin\niuyef.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:4824

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\niuyef.exe

Filesize
168KB

MD5
cec0427f0b559c65a004d17f482536ba

SHA1
2a62d36a65eae3b0c5c3600e5c48a3110c343f43

SHA256
79079eb5b3ba04902071b4b3c76d9f528426d4b52fc500935eb3760215ef4a8a

SHA512
2365dbde8e78d1711826f2c07fcaabb9b2696b26cb1ef4d8d1ea263b0ea970472c2098e3784859bdc184b84f078a474fea26f44785293f93afd0d5b173701cb2

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

Filesize
168KB

MD5
cec0427f0b559c65a004d17f482536ba

SHA1
2a62d36a65eae3b0c5c3600e5c48a3110c343f43

SHA256
79079eb5b3ba04902071b4b3c76d9f528426d4b52fc500935eb3760215ef4a8a

SHA512
2365dbde8e78d1711826f2c07fcaabb9b2696b26cb1ef4d8d1ea263b0ea970472c2098e3784859bdc184b84f078a474fea26f44785293f93afd0d5b173701cb2

Download Submit
memory/4824-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads