Analysis
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max time kernel
142s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24/02/2024, 03:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe
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Size
2.2MB
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MD5
554364e0b8e190e973c113c8f685241a
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SHA1
e09a20b6fccca9c5a70aa06c05e5653cc3b15210
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SHA256
6725dfdc478fb74bd267bda03a385cf015b21062d61cacb97637cab766389481
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SHA512
8b041d550b88a5b43da0b6ffe0f353daa8334a3a6d6285c9edf5f88ee6a66a4411e7f78f238b59d316c68d26a8357bed412b3993b6da19532b52e65ca4ed5d43
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SSDEEP
24576:BzARHYY0BU1kMzcqPKrfd2DSpytC7N1W7F+/dFbiM5LUgm1bvKrinKxPRIZG3KK3:JosU1kC3Sb7NgZi3ZtcbKrinKkTK3
Malware Config
Signatures
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UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/1660-0-0x0000000000400000-0x0000000000628000-memory.dmp UPX behavioral1/files/0x000800000001227d-5.dat UPX behavioral1/memory/1660-7-0x0000000010000000-0x000000001003E000-memory.dmp UPX behavioral1/memory/1660-9-0x0000000010000000-0x000000001003E000-memory.dmp UPX behavioral1/memory/1660-15-0x0000000010000000-0x000000001003E000-memory.dmp UPX behavioral1/memory/1660-16-0x0000000000400000-0x0000000000628000-memory.dmp UPX -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000800000001227d-5.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe -
resource yara_rule behavioral1/files/0x000800000001227d-5.dat upx behavioral1/memory/1660-7-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1660-9-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1660-15-0x0000000010000000-0x000000001003E000-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.
description ioc Process File opened for modification \??\PhysicalDrive0 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\WZNWD.dat 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe 1660 2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-24_554364e0b8e190e973c113c8f685241a_xiaoba.exe"1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:1660
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
86KB
MD5114054313070472cd1a6d7d28f7c5002
SHA19a044986e6101df1a126035da7326a50c3fe9a23
SHA256e15d9e1b772fed3db19e67b8d54533d1a2d46a37f8b12702a5892c6b886e9db1
SHA512a2ff8481e89698dae4a1c83404105093472e384d7a3debbd7014e010543e08efc8ebb3f67c8a4ce09029e6b2a8fb7779bb402aae7c9987e61389cd8a72c73522