66f62408dfce7c4a5718d2759f1d35721ca22077398850277d16e1fca87fe764

Resubmissions

16-01-2023 10:07

230116-l5vegshc3x 10

10-01-2023 20:37

10-01-2023 18:54

10-01-2023 18:48

10-01-2023 18:47

10-01-2023 18:44

Analysis

max time kernel
33s
max time network
37s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2023 18:47

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Reason

Machine shutdown

Report Analysis Logs

General

Target

Bonzify.exe
Size

6.4MB
MD5

fba93d8d029e85e0cde3759b7903cee2
SHA1

525b1aa549188f4565c75ab69e51f927204ca384
SHA256

66f62408dfce7c4a5718d2759f1d35721ca22077398850277d16e1fca87fe764
SHA512

7c1441b2e804e925eb5a03e97db620117d3ad4f6981dc020e4e7df4bfc4bd6e414fa3b0ce764481a2cef07eebb2baa87407355bfbe88fab96397d82bd441e6a2
SSDEEP

196608:adAMaWetTeAkLIdx751qFTkub//73lc6u7b5VJ2Yx5xIdk3:OaWedh+Idx75QYub//73lc6u7bLMYxD

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1596 takeown.exe
384 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1596 takeown.exe
384 icacls.exe
Drops file in Windows directory 1 IoCs

Processes:

Bonzify.exe

description ioc process

File created C:\Windows\executables.bin Bonzify.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1852 taskkill.exe

pid	process
1596	takeown.exe
384	icacls.exe

pid	process
1596	takeown.exe
384	icacls.exe

description	ioc	process
File created	C:\Windows\executables.bin	Bonzify.exe

pid	process
1852	taskkill.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "147"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1852 taskkill.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

3040 LogonUI.exe

description	pid	process
Token: SeDebugPrivilege	1852	taskkill.exe

pid	process
3040	LogonUI.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Bonzify.execmd.exe

description	pid	process	target process
PID 1252 wrote to memory of 5036	1252	Bonzify.exe	cmd.exe
PID 1252 wrote to memory of 5036	1252	Bonzify.exe	cmd.exe
PID 1252 wrote to memory of 5036	1252	Bonzify.exe	cmd.exe
PID 5036 wrote to memory of 1852	5036	cmd.exe	taskkill.exe
PID 5036 wrote to memory of 1852	5036	cmd.exe	taskkill.exe
PID 5036 wrote to memory of 1852	5036	cmd.exe	taskkill.exe
PID 5036 wrote to memory of 1596	5036	cmd.exe	takeown.exe
PID 5036 wrote to memory of 1596	5036	cmd.exe	takeown.exe
PID 5036 wrote to memory of 1596	5036	cmd.exe	takeown.exe
PID 5036 wrote to memory of 384	5036	cmd.exe	icacls.exe
PID 5036 wrote to memory of 384	5036	cmd.exe	icacls.exe
PID 5036 wrote to memory of 384	5036	cmd.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\Bonzify.exe
"C:\Users\Admin\AppData\Local\Temp\Bonzify.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\KillAgent.bat"
2⤵
- Suspicious use of WriteProcessMemory
PID:5036

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im AgentSvr.exe
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1852

C:\Windows\SysWOW64\takeown.exe
takeown /r /d y /f C:\Windows\MsAgent
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1596

C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\MsAgent /c /t /grant "everyone":(f)
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:384

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3986855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3040

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\KillAgent.bat
Filesize
161B

MD5
ea7df060b402326b4305241f21f39736

SHA1
7d58fb4c58e0edb2ddceef4d21581ff9d512fdc2

SHA256
e4edc2cb6317ab19ee1a6327993e9332af35cfbebaff2ac7c3f71d43cfcbe793

SHA512
3147615add5608d0dce7a8b6efbfb19263c51a2e495df72abb67c6db34f5995a27fde55b5af78bbd5a6468b4065942cad4a4d3cb28ab932aad9b0f835aafe4d0

Download Submit
memory/384-136-0x0000000000000000-mapping.dmp

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memory/1596-135-0x0000000000000000-mapping.dmp

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memory/1852-134-0x0000000000000000-mapping.dmp

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memory/5036-132-0x0000000000000000-mapping.dmp

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