57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f

General

Target

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
Size

300KB
MD5

34f01d1ea94967addebe0d7a6c0862c0
SHA1

cf5ee2d2334c75830918b01eff9237b30433dcfd
SHA256

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f
SHA512

a50a2f2e4fba0bf8d1e3999b9784fc2acc79e98443027f3f2a90e8cd2f626fdb10dfed6e0ecaadaeb68150d02528168da37284e6e6d19de01cc61007f3641a88
SSDEEP

3072:xdFaKfxFYx7z3pXJfvhMWKINBd/kqARk42rAzaOvZyNRQmkgXqjH5UFcjrf+HhDo:LFaKpFY/kJqeNhi0GTvHMww3y/IAFMsq

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:

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exetzvuac.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	tzvuac.exe

Executes dropped EXE 1 IoCs

Processes:

tzvuac.exe

pid process

224 tzvuac.exe

pid	process
224	tzvuac.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:

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe

Adds Run key to start application 2 TTPs 53 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

tzvuac.exe57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /b"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /U"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /F"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /q"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /W"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /n"	tzvuac.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /T"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /I"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /N"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /R"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /B"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /g"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /m"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /f"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /y"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /Q"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /r"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /J"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /L"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /l"	tzvuac.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /v"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /D"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /C"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /i"	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /a"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /E"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /i"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /V"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /M"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /w"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /d"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /Y"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /j"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /Z"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /P"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /c"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /o"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /t"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /h"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /p"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /z"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /e"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /k"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /A"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /X"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /H"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /s"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /x"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /u"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /K"	tzvuac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tzvuac = "C:\\Users\\Admin\\tzvuac.exe /S"	tzvuac.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:

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exetzvuac.exe

pid	process
2524	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
2524	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe
224	tzvuac.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exetzvuac.exe

pid process

2524 57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
224 tzvuac.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe

description	pid	process	target process
PID 2524 wrote to memory of 224	2524	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe	tzvuac.exe
PID 2524 wrote to memory of 224	2524	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe	tzvuac.exe
PID 2524 wrote to memory of 224	2524	57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe	tzvuac.exe

C:\Users\Admin\AppData\Local\Temp\57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.exe
"C:\Users\Admin\AppData\Local\Temp\57420a15e466c520a017bc48b1bc48ba5f0df1380459ac3762cef28bb6cc031f.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:2524

C:\Users\Admin\tzvuac.exe
"C:\Users\Admin\tzvuac.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:224

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\tzvuac.exe

Filesize
300KB

MD5
c2433405f2437ae246b5a49a59156f82

SHA1
ebbf29f68f20792742ef3902ca31c0309a47261e

SHA256
5c618e62065641ee2abf27ac84ad49c41bbec8315c0fa0d3d28d61eb29b82c87

SHA512
e8855e9620dec039fb2e817d0fd0ce8aa051db4395bfe3239f81af6bc07058f774d25194a880476405c803c1ce8d58789e4bc17974fe6ace07c7eaeb90d0c7ca

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

Filesize
300KB

MD5
c2433405f2437ae246b5a49a59156f82

SHA1
ebbf29f68f20792742ef3902ca31c0309a47261e

SHA256
5c618e62065641ee2abf27ac84ad49c41bbec8315c0fa0d3d28d61eb29b82c87

SHA512
e8855e9620dec039fb2e817d0fd0ce8aa051db4395bfe3239f81af6bc07058f774d25194a880476405c803c1ce8d58789e4bc17974fe6ace07c7eaeb90d0c7ca

Download Submit
memory/224-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads