a58066277f8e08ab5ef95e598f95fd86b2107049f800fbe15c54233bdddd6633

Analysis

max time kernel
0s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 14:05

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General

Target

391db4b5e48b6acf36d2a7925e266aff.exe
Size

328KB
MD5

391db4b5e48b6acf36d2a7925e266aff
SHA1

d248ba945e985e731018036b7884794f2e0c5241
SHA256

a58066277f8e08ab5ef95e598f95fd86b2107049f800fbe15c54233bdddd6633
SHA512

547331784a749bed2b1311e7d4a431156dd5f768c6a281b821f0c387bc37a8619ac3231ed3738891c0ff70baa19eae11c4cb2eb83e27ab4ac8d347e4a03684bc
SSDEEP

6144:zePJYhcvhLxotp++sCTHUIKz3JWGYBjWo89I/G9/gb9+tftIi9ramlaLk3:zePJYIh9of++skOYBjDGwG9/iIXllacD

Score

7^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/468-0-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral2/memory/468-11-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral2/memory/468-17-0x0000000000400000-0x00000000004BC000-memory.dmp	upx

Enumerates connected drives 3 TTPs 21 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

description	ioc	Process
File opened (read-only)	\??\n:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\o:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\y:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\i:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\j:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\r:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\u:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\v:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\w:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\g:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\p:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\k:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\l:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\m:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\t:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\z:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\e:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\h:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\x:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\q:	391db4b5e48b6acf36d2a7925e266aff.exe
File opened (read-only)	\??\s:	391db4b5e48b6acf36d2a7925e266aff.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	391db4b5e48b6acf36d2a7925e266aff.exe

C:\Users\Admin\AppData\Local\Temp\391db4b5e48b6acf36d2a7925e266aff.exe
"C:\Users\Admin\AppData\Local\Temp\391db4b5e48b6acf36d2a7925e266aff.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
PID:468

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/468-0-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/468-11-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/468-17-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads