965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
30/09/2023, 09:19

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General

Target

965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe
Size

198KB
MD5

395a589ef2322ed284d659e3889ff3f3
SHA1

4c5fc307caf9101bbc74f9b99bf2b7d3b94b488d
SHA256

965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87
SHA512

f658a8bf8113eed90d270e2c2cedad1041414c5d010686732b0c515731539639d90cf5b8f330d3a387637f1f9672b1d9938152f14f9b62ff7af2ed3be79b8298
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOq:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXP

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-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe

Executes dropped EXE 1 IoCs

pid	Process
1924	yyghost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\yyghost.exe	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe
File opened for modification	C:\Windows\Debug\yyghost.exe	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.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	1156	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 3996	1156	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe	87
PID 1156 wrote to memory of 3996	1156	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe	87
PID 1156 wrote to memory of 3996	1156	965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe	87

C:\Users\Admin\AppData\Local\Temp\965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe
"C:\Users\Admin\AppData\Local\Temp\965b6ff879c10efe18bc1faab407395fe5958d122148ea06a8f61156539d7c87.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\965B6F~1.EXE > nul
  2⤵
  PID:3996

C:\Windows\Debug\yyghost.exe
C:\Windows\Debug\yyghost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1924

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
41273f10064b952800c0e95256e4d295

SHA1
c58b177eb3ee314cf8e41dc334e3282cd32dabe9

SHA256
84b0aeac4721d955ee0fb5b793edb116ba6a54692d43efe5445f91114b620078

SHA512
c4a36154f80e5eb46d1d5eba455d22d1bc95c5bde30d277a7daa8b77b2e29f5e04b0642bef36fe01f51d031bc32cf158cc480871cd88dbae480448b6a0249aa9

Download Submit
C:\Windows\debug\yyghost.exe

Filesize
198KB

MD5
41273f10064b952800c0e95256e4d295

SHA1
c58b177eb3ee314cf8e41dc334e3282cd32dabe9

SHA256
84b0aeac4721d955ee0fb5b793edb116ba6a54692d43efe5445f91114b620078

SHA512
c4a36154f80e5eb46d1d5eba455d22d1bc95c5bde30d277a7daa8b77b2e29f5e04b0642bef36fe01f51d031bc32cf158cc480871cd88dbae480448b6a0249aa9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads