0e8ea631f20cb79bfe5aae0c4adaa7a8989607a2f1d7f4482125458722d3ff1a

General

Target

2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe
Size

3.0MB
MD5

0a87d55d49780fcabee74a18b3666cd6
SHA1

70e84e9f4399cfd1cc24892961cf74f77b20d6d6
SHA256

0e8ea631f20cb79bfe5aae0c4adaa7a8989607a2f1d7f4482125458722d3ff1a
SHA512

6c5bab79f8193d0f42e16fd679caf8d2753ab5e528f3cabc741d2b61bbc4f3eafbdb70d4c3171265f318024e30230cc8d1884a1be737fca8e13fb4000f2e2a37
SSDEEP

49152:7QQ4YLIR7fMBT8sK9C97CHNkJrMNpDl0sBBZ83pxR7+3uMx5Om15f7SQ8:uz897Cu1+3uMrO8je

Score

9^/10

bootkit persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 25 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-1-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-2-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-3-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-7-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-5-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-41-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-44-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-39-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-37-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-35-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-33-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-31-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-29-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-27-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-45-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-25-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-23-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-21-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-19-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-18-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-15-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-13-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-11-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX
behavioral1/memory/1640-9-0x0000000000290000-0x00000000002CE000-memory.dmp	UPX

UPX packed file 25 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-1-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-2-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-3-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-7-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-5-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-41-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-44-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-39-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-37-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-35-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-33-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-31-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-29-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-27-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-45-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-25-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-23-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-21-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-19-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-18-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-15-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-13-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-11-0x0000000000290000-0x00000000002CE000-memory.dmp	upx
behavioral1/memory/1640-9-0x0000000000290000-0x00000000002CE000-memory.dmp	upx

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

Processes:

2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe

description ioc process

File opened for modification \??\PhysicalDrive0 2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe

pid process

1640 2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe

pid	process
1640	2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe
1640	2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe
1640	2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe
1640	2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_0a87d55d49780fcabee74a18b3666cd6_xiaoba.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1640-0-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-1-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-2-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-3-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-7-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-5-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-41-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-44-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-39-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-37-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-35-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-33-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-31-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-29-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-27-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-45-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-25-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-23-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-21-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-19-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-18-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-15-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-13-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-11-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-9-0x0000000000290000-0x00000000002CE000-memory.dmp

Filesize
248KB

Download
memory/1640-48-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/1640-51-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/1640-50-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/1640-49-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/1640-52-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads