a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe

Analysis

max time kernel
42s
max time network
47s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
03/10/2022, 05:50

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General

Target

a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe
Size

1.2MB
MD5

5b1cf39eb89447f636a223e2d76ff2f0
SHA1

640a37f711b2d66588119b249c1657c4db7d26e7
SHA256

a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe
SHA512

d85484f93406b638b107a5a4e5468b5e915e795eac343f4c99772cd7b9d77a4f3d060adee6f9a822ca73db54568782d001e2fe6e079ed8ec0e16656997c338ca
SSDEEP

24576:xNo9ZIPWpawwmT5ER4omoJaREUgPW7yvF4G/8l+7/g9A:xNLP8TiqAW7q4m8U/6A

Score

7^/10

bootkit evasion persistence trojan

Malware Config

Signatures

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Wine	a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.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

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1752	a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1752	a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe

C:\Users\Admin\AppData\Local\Temp\a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe
"C:\Users\Admin\AppData\Local\Temp\a7c6756bbd00682bb49e3a9a79cc1ca8830d391bef3e809c5310f076d8ee45fe.exe"
1⤵
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1752

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1752-54-0x0000000000400000-0x000000000057D000-memory.dmp

Filesize
1.5MB

Download
memory/1752-55-0x0000000000400000-0x000000000057D000-memory.dmp

Filesize
1.5MB

Download