f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e

General

Target

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Size

184KB
MD5

16a93d1b8bc0cf55e4e8048ace33e24f
SHA1

899ed268b5c09119ffa8f3e49bdbb8cc3a501493
SHA256

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e
SHA512

5e90377bffeca100c91455b6865018752d7e45775462df0b161a2494986b2f94691fea20f3b0a030d6b5de384c53eb414fede069dae1cf319a0ab2585f2778b6
SSDEEP

3072:EiPyY93+BEF8F+7+w3wrOwo9aDZQNfEq02wfG:EiPyY1+T0fZH

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:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exebzbaek.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	bzbaek.exe

Executes dropped EXE 1 IoCs

Processes:

bzbaek.exe

pid process

4728 bzbaek.exe

pid	process
4728	bzbaek.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:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bzbaek.exef5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /n"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /x"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /p"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /z"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /l"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /r"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /i"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /h"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /a"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /u"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /s"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /d"	bzbaek.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows\CurrentVersion\Run\	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /y"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /b"	bzbaek.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows\CurrentVersion\Run\	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /o"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /e"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /q"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /g"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /j"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /q"	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /m"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /w"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /v"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /c"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /k"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /f"	bzbaek.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bzbaek = "C:\\Users\\Admin\\bzbaek.exe /t"	bzbaek.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:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exebzbaek.exe

pid	process
3344	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
3344	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
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4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
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4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe
4728	bzbaek.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exebzbaek.exe

pid process

3344 f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
4728 bzbaek.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

description	pid	process	target process
PID 3344 wrote to memory of 4728	3344	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	bzbaek.exe
PID 3344 wrote to memory of 4728	3344	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	bzbaek.exe
PID 3344 wrote to memory of 4728	3344	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	bzbaek.exe

C:\Users\Admin\AppData\Local\Temp\f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
"C:\Users\Admin\AppData\Local\Temp\f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.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\bzbaek.exe
"C:\Users\Admin\bzbaek.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:4728

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\bzbaek.exe

Filesize
184KB

MD5
c5d92fde507ee25a0288e4b4eb772215

SHA1
4c2b47d5ecfb9a6021ada3ebd9fb0ee5f2a99c63

SHA256
80eb85c188272488f58fa1c12fb6686dca7ed121e2085750103d7e6da4fc0a62

SHA512
e913915620219b9ca68d68a2150d05a6026f08e2c5c130796fd767963eeb36d5670f973d4f8c053a2cab201ffea16122d4a15d0f98d466e2ae7beb7db33958c3

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

Filesize
184KB

MD5
c5d92fde507ee25a0288e4b4eb772215

SHA1
4c2b47d5ecfb9a6021ada3ebd9fb0ee5f2a99c63

SHA256
80eb85c188272488f58fa1c12fb6686dca7ed121e2085750103d7e6da4fc0a62

SHA512
e913915620219b9ca68d68a2150d05a6026f08e2c5c130796fd767963eeb36d5670f973d4f8c053a2cab201ffea16122d4a15d0f98d466e2ae7beb7db33958c3

Download Submit
memory/4728-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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