843ca5a3bb763223ea854cd0f748081510cab7c4538cd93d0d1d24f0b5aebdc6

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
18-06-2023 17:53

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General

Target

Ghostexp.exe
Size

3.5MB
MD5

e4363df308bd8b81c687412e2314e872
SHA1

4d83035b60bc224724e0c5a5192113ae5cd56b99
SHA256

843ca5a3bb763223ea854cd0f748081510cab7c4538cd93d0d1d24f0b5aebdc6
SHA512

6f7a11dc6d8462899c8071cfe028810d7f1e1b7d8d7fa03d76eb11d4a921fc51d189074c6a20d2ffbb45f2cc9584f19c0345364e6cfd5ae0215c8ed2133e844e
SSDEEP

98304:H9Sr7B6eEtduW/bC+1TzAoEZUI4A0AFKiNkTPAQ:dS/keEtduW/REZU8nF6TPH

Score

6^/10

bootkit persistence

Malware Config

Signatures

Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

Ghostexp.exe

description ioc process

File opened (read-only) \??\D: Ghostexp.exe
File opened (read-only) \??\B: Ghostexp.exe

description	ioc	process
File opened (read-only)	\??\D:	Ghostexp.exe
File opened (read-only)	\??\B:	Ghostexp.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Ghostexp.exe

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

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

Ghostexp.exe

description ioc process

File opened for modification \??\PhysicalDrive0 Ghostexp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	\??\PhysicalDrive0	Ghostexp.exe

Modifies registry class 8 IoCs

Processes:

Ghostexp.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Ghost\shell	Ghostexp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Ghost\shell\open	Ghostexp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Ghost\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Ghostexp.exe \"%1\""	Ghostexp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.gho	Ghostexp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.gho\ = "Ghost"	Ghostexp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Ghost	Ghostexp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Ghost\ = "Ghost image file"	Ghostexp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Ghost\shell\open\command	Ghostexp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Ghostexp.exe

pid process

1792 Ghostexp.exe

pid	process
1792	Ghostexp.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

Ghostexp.exe

description	pid	process
Token: 33	1792	Ghostexp.exe
Token: SeIncBasePriorityPrivilege	1792	Ghostexp.exe
Token: 33	1792	Ghostexp.exe
Token: SeIncBasePriorityPrivilege	1792	Ghostexp.exe
Token: 33	1792	Ghostexp.exe
Token: SeIncBasePriorityPrivilege	1792	Ghostexp.exe
Token: 33	1792	Ghostexp.exe
Token: SeIncBasePriorityPrivilege	1792	Ghostexp.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Ghostexp.exe

pid process

1792 Ghostexp.exe
1792 Ghostexp.exe

pid	process
1792	Ghostexp.exe
1792	Ghostexp.exe

C:\Users\Admin\AppData\Local\Temp\Ghostexp.exe
"C:\Users\Admin\AppData\Local\Temp\Ghostexp.exe"
1⤵
- Enumerates connected drives
- Maps connected drives based on registry
- Writes to the Master Boot Record (MBR)
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1792

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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