5d2dc95726a2e11884b320742c853cd10bc41c8be9b37b82fb3e1d95e9aeb0c6

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 00:54

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General

Target

vpnclient2/28vpn_zh_5.0.exe
Size

660KB
MD5

2fb63631356b72906b35d22a27189eda
SHA1

dd9875906d4e8748c068ba02cfb53133720ca225
SHA256

82673909541b88f4f89de1cef7be87d4a2a79d74acd846322bbe8a14ed4432b8
SHA512

ef1d98a556fa121773dd1eb0196294d94f61d22c8a6975a2be71cb7eb79c26309635040107c6636874af0aae862d3efabc492687d0f2b511cadf9d813f0ca52a
SSDEEP

12288:sltPST4mIn9n/odH1vUr6SLky2W3lX/ZRduH9d7tnaWaNlCmkfqxZVzpSEHLl:sl8T4nno1crNLT2ClPZRduD74NsEZ+Er

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral6/memory/3440-0-0x0000000000400000-0x0000000000579000-memory.dmp	upx
behavioral6/memory/3440-387-0x0000000000400000-0x0000000000579000-memory.dmp	upx

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	28vpn_zh_5.0.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\IESettingSync	28vpn_zh_5.0.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	28vpn_zh_5.0.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	28vpn_zh_5.0.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe
3440	28vpn_zh_5.0.exe

C:\Users\Admin\AppData\Local\Temp\vpnclient2\28vpn_zh_5.0.exe
"C:\Users\Admin\AppData\Local\Temp\vpnclient2\28vpn_zh_5.0.exe"
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3440-0-0x0000000000400000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/3440-1-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/3440-387-0x0000000000400000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/3440-389-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download