b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 16:13

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General

Target

b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
Size

231KB
MD5

112471687736c45eb487357c5e5eab96
SHA1

add0137d05891e0b8c817323cb2d5159441eeea2
SHA256

b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1
SHA512

8704ebaf5cde402e4d92e678858c616231fead4b54ee6e160f33af0885c939e94a29da3407a96295e7e32e0505b9deb7346800f4e71d4170ea148d92381d99a4
SSDEEP

6144:/hDkhsuXLY+3soHseajrmDKhhzaYzsYdBO6eabLNEWwBk:pAxY3oHsZjriLGdBneaJMk

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2356-132-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/2356-133-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/2356-134-0x0000000000400000-0x0000000000488000-memory.dmp	upx

Enumerates connected drives 3 TTPs 22 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:

b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe

description	ioc	process
File opened (read-only)	\??\m:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\n:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\h:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\i:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\j:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\k:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\u:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\x:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\y:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\q:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\r:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\s:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\t:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\e:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\f:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\p:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\w:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\z:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\g:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\l:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\o:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
File opened (read-only)	\??\v:	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.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:

b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe

description ioc process

File opened for modification \??\PhysicalDrive0 b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe

C:\Users\Admin\AppData\Local\Temp\b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe
"C:\Users\Admin\AppData\Local\Temp\b4bd9644012db7360e63208bcf1622b8481d057a2be7366af97a5632c3956ac1.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
PID:2356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

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/2356-132-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2356-133-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2356-134-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download