4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348

Analysis

max time kernel
144s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2023, 22:22

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General

Target

4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe
Size

198KB
MD5

e5ece27b2fba2958bd755188233063f9
SHA1

0e82e2a92da3a48133f2c1148979abd483d912bb
SHA256

4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348
SHA512

55675b2d2831a8db410842e282003c2dd50344f6305473b78cd4a5669d49c138b4e83dcccbb861bfc1a846d09d0dbc05fd901c603399e1bc7a3fe50194aff392
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOX:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXC

Score

7^/10

Malware Config

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Control Panel\International\Geo\Nation	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe

Executes dropped EXE 1 IoCs

pid	Process
1904	yyghost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\yyghost.exe	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe
File created	C:\Windows\Debug\yyghost.exe	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	yyghost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	yyghost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1996	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 4656	1996	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe	84
PID 1996 wrote to memory of 4656	1996	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe	84
PID 1996 wrote to memory of 4656	1996	4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe	84

C:\Users\Admin\AppData\Local\Temp\4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe
"C:\Users\Admin\AppData\Local\Temp\4aeeedf8f586e57021c6f489671ea6e982706ce53c2d7cdd01234d41cf1f1348.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\4AEEED~1.EXE > nul
  2⤵
  PID:4656

C:\Windows\Debug\yyghost.exe
C:\Windows\Debug\yyghost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\yyghost.exe

Filesize
198KB

MD5
aa6303f0390cbf13a75894d64b074e3a

SHA1
b9ccb6ae29337948b509af532329418b78bb5d51

SHA256
1f7c37b0634159391e4355657944856ad6a4138999021c78dc3eb137c4e7fb81

SHA512
3f6ad48dd4f656bb7606623dc9553a4fc81849fc10c9b2a61b592160ab655dd84c0d368359e7c60ffadfef6181d9e8adaf80711a6e18a5b9bcdde2c8818229b9

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C:\Windows\debug\yyghost.exe

Filesize
198KB

MD5
aa6303f0390cbf13a75894d64b074e3a

SHA1
b9ccb6ae29337948b509af532329418b78bb5d51

SHA256
1f7c37b0634159391e4355657944856ad6a4138999021c78dc3eb137c4e7fb81

SHA512
3f6ad48dd4f656bb7606623dc9553a4fc81849fc10c9b2a61b592160ab655dd84c0d368359e7c60ffadfef6181d9e8adaf80711a6e18a5b9bcdde2c8818229b9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads