025f821188c8938a548cc4b2e5cc838afef6a38a56a5352bf03c4f49cd674189

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
10-03-2024 15:48

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General

Target

befee4ada9f39d390c9c335eb2f8261b.exe
Size

465KB
MD5

befee4ada9f39d390c9c335eb2f8261b
SHA1

b5a45f445b53adfb8ad01c75cf59f42f918171a1
SHA256

025f821188c8938a548cc4b2e5cc838afef6a38a56a5352bf03c4f49cd674189
SHA512

b0ecfd6c29fc815d82685e24492817e2a95374fdbef885e5e0310f4df18fc3159a1fcd061e5d2e86bde51961f46608f8b90adef0b2bee62a6c89ac0f41b7510f
SSDEEP

6144:eqmNUNjFdYgMufB3YHTzY1A7i9NHNcUhW+gSbT9lm/9CMDI8bhoWYEET9:eqzNjbYgdBG+EiCqgMT9lm1BPhYvT

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
behavioral1/memory/840-0-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/840-1-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/840-2-0x0000000000400000-0x0000000000475000-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)	\??\e:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\g:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\x:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\w:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\j:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\l:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\n:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\o:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\r:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\t:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\u:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\v:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\i:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\k:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\m:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\p:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\y:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\z:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\h:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\q:	befee4ada9f39d390c9c335eb2f8261b.exe
File opened (read-only)	\??\s:	befee4ada9f39d390c9c335eb2f8261b.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	befee4ada9f39d390c9c335eb2f8261b.exe

C:\Users\Admin\AppData\Local\Temp\befee4ada9f39d390c9c335eb2f8261b.exe
"C:\Users\Admin\AppData\Local\Temp\befee4ada9f39d390c9c335eb2f8261b.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
PID:840

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

Replay Monitor

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Downloads

memory/840-0-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/840-1-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/840-2-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads