1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77

General

Target

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
Size

80KB
MD5

35128e0afdeb32bc46ed472905196147
SHA1

c64812e1d01d856a8968a20739129ea352f5b81c
SHA256

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77
SHA512

4a9214b29cf6a4e5e70fe983ab2a1f3ad47ba922b39b562923778e9f584922957c02a52620bde0c439e3b281fb837f486afc365774fc82f90bde331967ebdf94
SSDEEP

1536:tDwzKuOzj4i7GNetv6lTwDkJY7vyQdGV4Kj:VT+lTwDkJEDGFj

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:

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exewievai.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	wievai.exe

Executes dropped EXE 1 IoCs

Processes:

wievai.exe

pid process

1832 wievai.exe

pid	process
1832	wievai.exe

Loads dropped DLL 2 IoCs

Processes:

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe

pid	process
1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe

Adds Run key to start application 2 TTPs 58 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exewievai.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /i"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /g"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /e"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /d"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /c"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /e"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /y"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /x"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /q"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /t"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /o"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /p"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /s"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /n"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /d"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /u"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /z"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /j"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /p"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /k"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /i"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /y"	wievai.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /f"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /r"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /x"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /b"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /v"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /k"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /m"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /z"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /r"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /q"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /o"	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /o"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /w"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /s"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /a"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /l"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /t"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /a"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /m"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /h"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /w"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /u"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /b"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /n"	wievai.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /l"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /h"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /g"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /v"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /c"	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /j"	wievai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /c"	wievai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\wievai = "C:\\Users\\Admin\\wievai.exe /f"	wievai.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:

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exewievai.exe

pid	process
1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe
1832	wievai.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

wievai.exe

pid process

1832 wievai.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exewievai.exe

pid process

1104 1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
1832 wievai.exe

pid	process
1832	wievai.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe

description	pid	process	target process
PID 1104 wrote to memory of 1832	1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe	wievai.exe
PID 1104 wrote to memory of 1832	1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe	wievai.exe
PID 1104 wrote to memory of 1832	1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe	wievai.exe
PID 1104 wrote to memory of 1832	1104	1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe	wievai.exe

C:\Users\Admin\AppData\Local\Temp\1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.exe
"C:\Users\Admin\AppData\Local\Temp\1f0940d486100ee8c3598f7f2ed7d3d1f25dc2993daed1081ffead5844a62c77.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:1104

C:\Users\Admin\wievai.exe
"C:\Users\Admin\wievai.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1832

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\wievai.exe

Filesize
80KB

MD5
aa92e3979509f4309671946d9cf78213

SHA1
ef34d826e64c668f721234e8a166436dd75fd822

SHA256
89b860440fb2e53a5fbee3cb1dc35cad3937dc3aef9137945e70347bc50bd64c

SHA512
4003b633bf68a05cc547c03b548020e1b162f4188ab25d91261cd87f9bea3cbca3a35095b3cff2c35d2f148d05787d20d3937b106ce024fd56da1bb8c4fd2bc1

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

Filesize
80KB

MD5
aa92e3979509f4309671946d9cf78213

SHA1
ef34d826e64c668f721234e8a166436dd75fd822

SHA256
89b860440fb2e53a5fbee3cb1dc35cad3937dc3aef9137945e70347bc50bd64c

SHA512
4003b633bf68a05cc547c03b548020e1b162f4188ab25d91261cd87f9bea3cbca3a35095b3cff2c35d2f148d05787d20d3937b106ce024fd56da1bb8c4fd2bc1

Download Submit
\Users\Admin\wievai.exe

Filesize
80KB

MD5
aa92e3979509f4309671946d9cf78213

SHA1
ef34d826e64c668f721234e8a166436dd75fd822

SHA256
89b860440fb2e53a5fbee3cb1dc35cad3937dc3aef9137945e70347bc50bd64c

SHA512
4003b633bf68a05cc547c03b548020e1b162f4188ab25d91261cd87f9bea3cbca3a35095b3cff2c35d2f148d05787d20d3937b106ce024fd56da1bb8c4fd2bc1

Download Submit
\Users\Admin\wievai.exe

Filesize
80KB

MD5
aa92e3979509f4309671946d9cf78213

SHA1
ef34d826e64c668f721234e8a166436dd75fd822

SHA256
89b860440fb2e53a5fbee3cb1dc35cad3937dc3aef9137945e70347bc50bd64c

SHA512
4003b633bf68a05cc547c03b548020e1b162f4188ab25d91261cd87f9bea3cbca3a35095b3cff2c35d2f148d05787d20d3937b106ce024fd56da1bb8c4fd2bc1

Download Submit
memory/1104-56-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

Filesize
8KB

Download
memory/1832-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads