b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f

General

Target

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
Size

2.7MB
MD5

07338e6093f5d781e53c9be79d898f15
SHA1

54e9b9061fc0444076b6b59ae09814c905eedd39
SHA256

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f
SHA512

7ecbc76640ec01c6b9bdce48ce63d006edcc252e60a0c917f74dc79147b1f17e2e0c2a98c481daa932805899d8597ead10b14e1a0875f78c1602fcce801ee2bc
SSDEEP

49152:MsNiGgXxARc7AOm1GTmifDj+gmKD5Sb7La9qzmTuGGOFZ6A1qt88f/83:/ZYOREQ1G5nqjbPa9qzmVGONEtz/83

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

yyboswe.exe

pid process

4188 yyboswe.exe

pid	process
4188	yyboswe.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ÎÒµÄÆô¶¯Ïî = "C:\\Windows\\system32\\/yyboswe.exe"	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

Drops file in System32 directory 1 IoCs

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

description ioc process

File created C:\Windows\SysWOW64\yyboswe.exe b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

description	ioc	process
File created	C:\Windows\SysWOW64\yyboswe.exe	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

pid	process
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "www.2345.com/?keyybc"	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

pid	process
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exeyyboswe.exe

pid	process
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
4188	yyboswe.exe
4188	yyboswe.exe
4188	yyboswe.exe
4188	yyboswe.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe

description	pid	process	target process
PID 3700 wrote to memory of 4188	3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe	yyboswe.exe
PID 3700 wrote to memory of 4188	3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe	yyboswe.exe
PID 3700 wrote to memory of 4188	3700	b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe	yyboswe.exe

C:\Users\Admin\AppData\Local\Temp\b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe
"C:\Users\Admin\AppData\Local\Temp\b20959b35cb853720d7b69fdc4ad360f85070ce848dee2c8c6b9c26da1d2721f.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3700

C:\Windows\SysWOW64\yyboswe.exe
C:\Windows\system32\/yyboswe.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\yyboswe.exe
Filesize
860KB

MD5
b2d6bacc36f7bd353333e0b420f26d40

SHA1
fc6d42b77e8d897fc5c871d89aa7a646c43a7394

SHA256
6f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc

SHA512
bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1

Download Submit
C:\Windows\SysWOW64\yyboswe.exe
Filesize
860KB

MD5
b2d6bacc36f7bd353333e0b420f26d40

SHA1
fc6d42b77e8d897fc5c871d89aa7a646c43a7394

SHA256
6f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc

SHA512
bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1

Download Submit
memory/3700-1484-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-1486-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-137-0x00000000756D0000-0x000000007574A000-memory.dmp

Filesize
488KB

Download
memory/3700-1481-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-1482-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-1483-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-132-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-136-0x00000000772F0000-0x0000000077490000-memory.dmp

Filesize
1.6MB

Download
memory/3700-1487-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-1488-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-1493-0x0000000000400000-0x00000000008C5000-memory.dmp

Filesize
4.8MB

Download
memory/3700-134-0x0000000076E10000-0x0000000077025000-memory.dmp

Filesize
2.1MB

Download
memory/3700-133-0x00000000774A0000-0x0000000077643000-memory.dmp

Filesize
1.6MB

Download
memory/3700-1492-0x0000000002960000-0x0000000002A60000-memory.dmp

Filesize
1024KB

Download
memory/4188-1489-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads