4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7

Analysis

max time kernel
140s
max time network
154s
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 04:26

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General

Target

4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe
Size

40KB
MD5

157e936faae225b8bb827a469d9955c0
SHA1

54dfd788c00af47c5047f5485bdc15987c89e05d
SHA256

4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7
SHA512

1c587324fa9ec4fe5b7f4fcb6652feeaf5d7da3e1e50a856e8b2aa4958cc84f9542decce7b15c15fd8942f298fe396b6e27ddf03df99d9ca643058ac7ce10280
SSDEEP

768:/98ZEVg5Q1exvXnA8n4aK17CZHYMo5NJ:/uEaVTnho5NJ

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

2180 takeown.exe
3356 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

2180 takeown.exe
3356 icacls.exe

pid	process
2180	takeown.exe
3356	icacls.exe

pid	process
2180	takeown.exe
3356	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FGCi = "C:\\Windows\\system32\\eebm.exe"	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

Drops file in System32 directory 2 IoCs

Processes:

4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

description	ioc	process
File created	C:\Windows\SysWOW64\eebm.exe	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe
File opened for modification	C:\Windows\SysWOW64\eebm.exe	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

pid process

1184 4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

pid	process
1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe

description	pid	process	target process
PID 1184 wrote to memory of 2180	1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe	takeown.exe
PID 1184 wrote to memory of 2180	1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe	takeown.exe
PID 1184 wrote to memory of 2180	1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe	takeown.exe
PID 1184 wrote to memory of 3356	1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe	icacls.exe
PID 1184 wrote to memory of 3356	1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe	icacls.exe
PID 1184 wrote to memory of 3356	1184	4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe
"C:\Users\Admin\AppData\Local\Temp\4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\eebm.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2180

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\eebm.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:3356

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\eebm.exe
Filesize
40KB

MD5
157e936faae225b8bb827a469d9955c0

SHA1
54dfd788c00af47c5047f5485bdc15987c89e05d

SHA256
4950ee288ad5492c81cb5d7e71f9ed739053e9c3565ebc5d5e22f8d038bfaba7

SHA512
1c587324fa9ec4fe5b7f4fcb6652feeaf5d7da3e1e50a856e8b2aa4958cc84f9542decce7b15c15fd8942f298fe396b6e27ddf03df99d9ca643058ac7ce10280

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memory/2180-134-0x0000000000000000-mapping.dmp

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memory/3356-135-0x0000000000000000-mapping.dmp

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