a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb

Analysis

max time kernel
135s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2022 07:52

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General

Target

a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe
Size

48KB
MD5

12493d8568e0e4718f1cb98b9c926630
SHA1

23e6dfb75a7be7e3c6dd1abcbf517e3cca1dc3b5
SHA256

a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb
SHA512

c1ffd90560134997c71098609827345e661ed908d410fc46924dc25c8751e2b5c518a33a0aba86d48855ea3691c0349b2473867d7433086264afa43629aeacf5
SSDEEP

768:zCIVwtym3OJt4vze9LfTUd+0yTXHa6a5+QEyTTbJXse:2I03OLuc0c0yb67WyPbRse

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

4900 takeown.exe
4220 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

4900 takeown.exe
4220 icacls.exe

pid	process
4900	takeown.exe
4220	icacls.exe

pid	process
4900	takeown.exe
4220	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\gWNYQAI = "c:\\windows\\system32\\htys.exe"	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

Drops file in System32 directory 2 IoCs

Processes:

a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

description	ioc	process
File opened for modification	\??\c:\windows\SysWOW64\htys.exe	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe
File created	\??\c:\windows\SysWOW64\htys.exe	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

pid process

4576 a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

pid	process
4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe

description	pid	process	target process
PID 4576 wrote to memory of 4900	4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe	takeown.exe
PID 4576 wrote to memory of 4900	4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe	takeown.exe
PID 4576 wrote to memory of 4900	4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe	takeown.exe
PID 4576 wrote to memory of 4220	4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe	icacls.exe
PID 4576 wrote to memory of 4220	4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe	icacls.exe
PID 4576 wrote to memory of 4220	4576	a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe
"C:\Users\Admin\AppData\Local\Temp\a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4576

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "c:\windows\system32\htys.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4900

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "c:\windows\system32\htys.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4220

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

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Downloads

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

MD5
12493d8568e0e4718f1cb98b9c926630

SHA1
23e6dfb75a7be7e3c6dd1abcbf517e3cca1dc3b5

SHA256
a586779fe7825ac3963f700f56783163643cf1fdda13f081d36a813566a41acb

SHA512
c1ffd90560134997c71098609827345e661ed908d410fc46924dc25c8751e2b5c518a33a0aba86d48855ea3691c0349b2473867d7433086264afa43629aeacf5

Download Submit
memory/4220-135-0x0000000000000000-mapping.dmp

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memory/4900-134-0x0000000000000000-mapping.dmp

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