f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97

Analysis

max time kernel
39s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 09:25

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General

Target

f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
Size

44KB
MD5

0ed25ef75b69f6e095b59f64722c20f6
SHA1

820231547d0897ad02feaf87a20db4410aefed6e
SHA256

f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97
SHA512

df6152bbd2af56b2b11e52a5363e75dd9fa6b17d49281bfd9ce6ef9c7b3566f3c6c27870bbe1c5725e56a6c0b7ac39335d355c94aa9dd1ed98247e05346c9256
SSDEEP

768:aJyujySX3upUXBA9PgY7XaJHhWh/gk/CdYivUH+X3g:EPDWMBA9PrOTKYk7I3g

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

2004 takeown.exe
1364 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

2004 takeown.exe
1364 icacls.exe

pid	process
2004	takeown.exe
1364	icacls.exe

pid	process
2004	takeown.exe
1364	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KpMhj = "c:\\windows\\system32\\cbonm.exe"	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

Drops file in System32 directory 2 IoCs

Processes:

f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\cbonm.exe	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
File opened for modification	\??\c:\windows\SysWOW64\cbonm.exe	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

pid process

1568 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

pid	process
1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe

description	pid	process	target process
PID 1568 wrote to memory of 2004	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	takeown.exe
PID 1568 wrote to memory of 2004	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	takeown.exe
PID 1568 wrote to memory of 2004	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	takeown.exe
PID 1568 wrote to memory of 2004	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	takeown.exe
PID 1568 wrote to memory of 1364	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	icacls.exe
PID 1568 wrote to memory of 1364	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	icacls.exe
PID 1568 wrote to memory of 1364	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	icacls.exe
PID 1568 wrote to memory of 1364	1568	f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
"C:\Users\Admin\AppData\Local\Temp\f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1568

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "c:\windows\system32\cbonm.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2004

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "c:\windows\system32\cbonm.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1364

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

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Downloads

\??\c:\windows\SysWOW64\cbonm.exe
Filesize
44KB

MD5
0ed25ef75b69f6e095b59f64722c20f6

SHA1
820231547d0897ad02feaf87a20db4410aefed6e

SHA256
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97

SHA512
df6152bbd2af56b2b11e52a5363e75dd9fa6b17d49281bfd9ce6ef9c7b3566f3c6c27870bbe1c5725e56a6c0b7ac39335d355c94aa9dd1ed98247e05346c9256

Download Submit
memory/1364-57-0x0000000000000000-mapping.dmp

Download
memory/2004-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads