2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410

Analysis

max time kernel
149s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2022 14:02

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General

Target

2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe
Size

48KB
MD5

06d0f1407bfca6f95aead7f017d73596
SHA1

67da18f26dda9a321a991dab56fd3e58c65097a2
SHA256

2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410
SHA512

9ba5a8ef6fed70683e6d8c02540e9632b2646c60014609471e5e7853c21ea6d5a0c093b8f16d08439aee37348bf3d2b72a822217864d82e051b1051b1d72b5eb
SSDEEP

768:6lBFiwszbB+aEtfNJkpYF3sypIo2XmpfoO1AY/Wi9X0urEsGhpWPTuVIa+Xg67Xb:6BFiZAiAf55EIaIJL

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1756 takeown.exe
2604 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1756 takeown.exe
2604 icacls.exe

pid	process
1756	takeown.exe
2604	icacls.exe

pid	process
1756	takeown.exe
2604	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HmVBhJJ = "c:\\windows\\system32\\gfuas.exe"	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

Drops file in System32 directory 2 IoCs

Processes:

2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\gfuas.exe	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe
File opened for modification	\??\c:\windows\SysWOW64\gfuas.exe	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

pid process

1416 2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

pid	process
1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe

description	pid	process	target process
PID 1416 wrote to memory of 1756	1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe	takeown.exe
PID 1416 wrote to memory of 1756	1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe	takeown.exe
PID 1416 wrote to memory of 1756	1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe	takeown.exe
PID 1416 wrote to memory of 2604	1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe	icacls.exe
PID 1416 wrote to memory of 2604	1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe	icacls.exe
PID 1416 wrote to memory of 2604	1416	2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe
"C:\Users\Admin\AppData\Local\Temp\2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1416

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "c:\windows\system32\gfuas.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1756

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "c:\windows\system32\gfuas.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\windows\SysWOW64\gfuas.exe
Filesize
48KB

MD5
06d0f1407bfca6f95aead7f017d73596

SHA1
67da18f26dda9a321a991dab56fd3e58c65097a2

SHA256
2223edc515b76faa9c18e656afd4ff04c0b0dd30c3f68e2ed96c543c3c134410

SHA512
9ba5a8ef6fed70683e6d8c02540e9632b2646c60014609471e5e7853c21ea6d5a0c093b8f16d08439aee37348bf3d2b72a822217864d82e051b1051b1d72b5eb

Download Submit
memory/1756-134-0x0000000000000000-mapping.dmp

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memory/2604-135-0x0000000000000000-mapping.dmp

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