8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce

Analysis

max time kernel
142s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
14-10-2023 02:18

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General

Target

8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
Size

11.6MB
MD5

10b7e64c9f63c28c6816630ce41c0d28
SHA1

46e37806c73f6b00b638fc41e5221aa67ca49c92
SHA256

8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce
SHA512

be199294a9ca9e2fed15afc4be0b508f3106e994ded347b67acda0d93f928bc283334437ac583fe3344e764c904a0b964bce9c6253b72584791a65f23f480e82
SSDEEP

196608:ltpHEGZla4YxmDuStYKQM4e1upVcZvQfffHQVWXFQ4T3kniKJzV/k6Mp48ehR:lthdsmiKue14VcZvyQVWXFQjniKJzV/9

Score

7^/10

bootkit persistence upx vmprotect

Malware Config

Signatures

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4132-11-0x0000000004050000-0x000000000405B000-memory.dmp	upx
behavioral2/memory/4132-12-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-14-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-15-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-18-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-21-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-23-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-25-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-27-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-30-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-32-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-34-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-36-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-38-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-40-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-42-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-43-0x0000000004050000-0x000000000405B000-memory.dmp	upx
behavioral2/memory/4132-45-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-47-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-49-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-51-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-53-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-56-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-58-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-60-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral2/memory/4132-61-0x0000000010000000-0x000000001003E000-memory.dmp	upx

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/4132-0-0x0000000000400000-0x0000000001F2C000-memory.dmp	vmprotect
behavioral2/memory/4132-29-0x0000000000400000-0x0000000001F2C000-memory.dmp	vmprotect
behavioral2/memory/4132-75-0x0000000000400000-0x0000000001F2C000-memory.dmp	vmprotect

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	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
4132	8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe

C:\Users\Admin\AppData\Local\Temp\8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe
"C:\Users\Admin\AppData\Local\Temp\8cba1df61caccb2163f09be893bf76d81991074d9dd08bfafffcb73b535e62ce.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4132

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4132-0-0x0000000000400000-0x0000000001F2C000-memory.dmp

Filesize
27.2MB

Download
memory/4132-2-0x0000000002100000-0x0000000002101000-memory.dmp

Filesize
4KB

Download
memory/4132-1-0x00000000020F0000-0x00000000020F1000-memory.dmp

Filesize
4KB

Download
memory/4132-3-0x0000000002110000-0x0000000002111000-memory.dmp

Filesize
4KB

Download
memory/4132-4-0x00000000026D0000-0x00000000026D1000-memory.dmp

Filesize
4KB

Download
memory/4132-5-0x00000000026E0000-0x00000000026E1000-memory.dmp

Filesize
4KB

Download
memory/4132-6-0x0000000003D10000-0x0000000003D11000-memory.dmp

Filesize
4KB

Download
memory/4132-7-0x0000000003D20000-0x0000000003D21000-memory.dmp

Filesize
4KB

Download
memory/4132-11-0x0000000004050000-0x000000000405B000-memory.dmp

Filesize
44KB

Download
memory/4132-12-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-14-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-15-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-18-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-21-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-23-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-25-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-27-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-30-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-29-0x0000000000400000-0x0000000001F2C000-memory.dmp

Filesize
27.2MB

Download
memory/4132-32-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-34-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-36-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-38-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-40-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-42-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-43-0x0000000004050000-0x000000000405B000-memory.dmp

Filesize
44KB

Download
memory/4132-45-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-47-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-49-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-51-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-53-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-56-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-58-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-60-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-61-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4132-62-0x0000000004070000-0x0000000004071000-memory.dmp

Filesize
4KB

Download
memory/4132-63-0x0000000004080000-0x0000000004081000-memory.dmp

Filesize
4KB

Download
memory/4132-65-0x0000000004130000-0x0000000004131000-memory.dmp

Filesize
4KB

Download
memory/4132-64-0x0000000004140000-0x0000000004141000-memory.dmp

Filesize
4KB

Download
memory/4132-75-0x0000000000400000-0x0000000001F2C000-memory.dmp

Filesize
27.2MB

Download