0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce

General

Target

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
Size

256KB
MD5

4bbdc27a9dea20735b7baf97a4023a20
SHA1

26add347fffef9454a50dfc976c66defc3d5cc9f
SHA256

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce
SHA512

f3a90919eb9d7c579bbce424a4ac22c665d4d00a8de8ebe7ccee42a7dc91a9456c296ce41ed1d7db36cef6a579576d6c919780db5982739dc163610fd7b4390e
SSDEEP

3072:ZxYW6OYVliTJeYbPIBFaoM4QClOehtOCJTiMGB+zFFDb+Lzvd/fFMl4mn2jYgyj:Zxd6ViMF9ps8TiUed/6KjY7

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:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exeyieyoeq.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"	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	yieyoeq.exe

Executes dropped EXE 1 IoCs

Processes:

yieyoeq.exe

pid process

1688 yieyoeq.exe

pid	process
1688	yieyoeq.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:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe

Adds Run key to start application 2 TTPs 7 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exeyieyoeq.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieyoeq = "C:\\Users\\Admin\\yieyoeq.exe /z"	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	yieyoeq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieyoeq = "C:\\Users\\Admin\\yieyoeq.exe /h"	yieyoeq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieyoeq = "C:\\Users\\Admin\\yieyoeq.exe /u"	yieyoeq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieyoeq = "C:\\Users\\Admin\\yieyoeq.exe /w"	yieyoeq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieyoeq = "C:\\Users\\Admin\\yieyoeq.exe /e"	yieyoeq.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exeyieyoeq.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	yieyoeq.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	yieyoeq.exe

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

yieyoeq.exe

description ioc process

File opened for modification C:\Users\Admin\c\autorun.inf yieyoeq.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Users\Admin\c\autorun.inf	yieyoeq.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exeyieyoeq.exe

pid	process
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe
1688	yieyoeq.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exeyieyoeq.exe

pid process

1620 0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
1688 yieyoeq.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe

description	pid	process	target process
PID 1620 wrote to memory of 1688	1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe	yieyoeq.exe
PID 1620 wrote to memory of 1688	1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe	yieyoeq.exe
PID 1620 wrote to memory of 1688	1620	0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe	yieyoeq.exe

C:\Users\Admin\AppData\Local\Temp\0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe
"C:\Users\Admin\AppData\Local\Temp\0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1620

C:\Users\Admin\yieyoeq.exe
"C:\Users\Admin\yieyoeq.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\yieyoeq.exe

Filesize
256KB

MD5
4bbdc27a9dea20735b7baf97a4023a20

SHA1
26add347fffef9454a50dfc976c66defc3d5cc9f

SHA256
0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce

SHA512
f3a90919eb9d7c579bbce424a4ac22c665d4d00a8de8ebe7ccee42a7dc91a9456c296ce41ed1d7db36cef6a579576d6c919780db5982739dc163610fd7b4390e

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

Filesize
256KB

MD5
4bbdc27a9dea20735b7baf97a4023a20

SHA1
26add347fffef9454a50dfc976c66defc3d5cc9f

SHA256
0458ba650b2ddd9b46fdf74d55a5652b629e34f48cda246fcf7b71d3161cb5ce

SHA512
f3a90919eb9d7c579bbce424a4ac22c665d4d00a8de8ebe7ccee42a7dc91a9456c296ce41ed1d7db36cef6a579576d6c919780db5982739dc163610fd7b4390e

Download Submit
memory/1688-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads