2269944ef4b75790b297b4aee2c6759a7451a449bec02671651b80c78d42f919

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-08-2024 05:14

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General

Target

6400bb5baddb2d5adfe13fc75e42d060N.exe
Size

4.7MB
MD5

6400bb5baddb2d5adfe13fc75e42d060
SHA1

a59deb27c39e81baa8557860f6bad1812ebefb54
SHA256

2269944ef4b75790b297b4aee2c6759a7451a449bec02671651b80c78d42f919
SHA512

fd566844a68013b6b53d8913f706b264581bb4ae665632c7abd2a1311288f1b04db2488dfc7423164f8f010e8c2eb835e4a62edc403ea792a5f26739131013df
SSDEEP

98304:2hRUJRVOlEYJykc36VeOzRz9zLFEyKnrhS3tO8/5w8+cdibkrXlI9P:AUR6EYRcKVJBtyVS9OU5Gcdi2Xi9P

Score

7^/10

bootkit persistence

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6400bb5baddb2d5adfe13fc75e42d060N.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

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	6400bb5baddb2d5adfe13fc75e42d060N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2624	6400bb5baddb2d5adfe13fc75e42d060N.exe
2624	6400bb5baddb2d5adfe13fc75e42d060N.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\checkwritepermissions.exe	6400bb5baddb2d5adfe13fc75e42d060N.exe

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	6400bb5baddb2d5adfe13fc75e42d060N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6400bb5baddb2d5adfe13fc75e42d060N.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	6400bb5baddb2d5adfe13fc75e42d060N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	6400bb5baddb2d5adfe13fc75e42d060N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	6400bb5baddb2d5adfe13fc75e42d060N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2624	6400bb5baddb2d5adfe13fc75e42d060N.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2624	6400bb5baddb2d5adfe13fc75e42d060N.exe

C:\Users\Admin\AppData\Local\Temp\6400bb5baddb2d5adfe13fc75e42d060N.exe
"C:\Users\Admin\AppData\Local\Temp\6400bb5baddb2d5adfe13fc75e42d060N.exe"
1⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2624-0-0x000000014393A000-0x0000000143B15000-memory.dmp

Filesize
1.9MB

Download
memory/2624-5-0x00000000775E0000-0x00000000775E2000-memory.dmp

Filesize
8KB

Download
memory/2624-3-0x00000000775E0000-0x00000000775E2000-memory.dmp

Filesize
8KB

Download
memory/2624-1-0x00000000775E0000-0x00000000775E2000-memory.dmp

Filesize
8KB

Download
memory/2624-10-0x000000013F970000-0x0000000144130000-memory.dmp

Filesize
71.8MB

Download
memory/2624-11-0x000000013F970000-0x0000000144130000-memory.dmp

Filesize
71.8MB

Download
memory/2624-13-0x000000014393A000-0x0000000143B15000-memory.dmp

Filesize
1.9MB

Download
memory/2624-14-0x000000013F970000-0x0000000144130000-memory.dmp

Filesize
71.8MB

Download