2e96258f3dd21d059f59831295d32d324a849c87bc5a2149a49c97fcf5783558

Analysis

max time kernel
7s
max time network
25s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 17:49

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General

Target

2024-12-25/unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
Size

2.7MB
MD5

b6c0b8f301a977e10c5cae4c226291f0
SHA1

471d41a7d1bc97a40307e7d77d363a73062ccb6d
SHA256

ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5
SHA512

ca78ea0e477f93e438a7a37d20f2876da540ed9f1cbd51411cac5e4c1003041e53ef6c94b126af657e8d9cc34d45b4b9d17269a41d19a849d7bf103c8459272c
SSDEEP

49152:vh+ZkldoPK8Ya8zPp4NE88c2TL8HoBW0VOnNfo4hDc+J+Hl1KH0PHQ2R4avMEO:42cPK82zPp4NE88c2TgHyb0NzhDcyKU7

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2764	brywcbio.exe

Loads dropped DLL 4 IoCs

pid	Process
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral17/files/0x0003000000023759-5.dat	autoit_exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	brywcbio.exe

Suspicious use of FindShellTrayWindow 12 IoCs

pid	Process
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe

Suspicious use of SendNotifyMessage 12 IoCs

pid	Process
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe
2764	brywcbio.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2764	3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe	30
PID 3052 wrote to memory of 2764	3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe	30
PID 3052 wrote to memory of 2764	3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe	30
PID 3052 wrote to memory of 2764	3052	unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-12-25\unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25\unknown-ccfd8ab65761b50dd4d699f374d27b375442cfe75cb2c785a59b7fe8463d01b5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Users\Admin\AppData\Local\Temp\brywcbio.exe
  "C:\Users\Admin\AppData\Local\Temp\brywcbio.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\903344641\path.ini

Filesize
189B

MD5
35c49b5d9a7d9cd3b5796852d152e32c

SHA1
6ce7c9a7f60ae3d3a8adae4da284b3037c61b332

SHA256
535200dd08c38e7766e24be09cf3c4d8bcecda4066ccf3efd7b30122350b0076

SHA512
c920ef253a58a9ef32719507cec50a5a36bac991c4f5b82860b6bc8439cbd66d2f4beed581251bf031dd3d2cda03eec8120fca72517b175e4d9da656cbfa2b5c

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\Users\Admin\AppData\Local\Temp\brywcbio.exe

Filesize
2.7MB

MD5
a904f69cd1e5862adbfe1866a409aea6

SHA1
deaea3d8f3cccd786d68ffc8b07cb3967f31bd56

SHA256
c839c4a264534573214b65511082f59dfe10ee32c3d84cf1b597e42b6f95dc5f

SHA512
680cece4d8c8cabd889c924bb5c92ee207a6c087e28e9454a2a2bd6cc8bfb6f6e408155251bcd71624cf4dd5680db7ec8b5a09a36ac27a32308396a5456bd35b

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