fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6

Analysis

max time kernel
41s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-11-2022 23:14

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General

Target

fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe
Size

68KB
MD5

0d0d544e4f10081806e7afe1f4aba1d6
SHA1

63f611feffb11ba7bbb415742ea0f405c0f2adf1
SHA256

fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6
SHA512

f06ed1e3f3f88ff805641bedab4ee1b3f2fb8f0f70224aea086bf0772cea88e97da69dc54487d4bbb05c7bbf03281c428ffe5e6bf2e9796a5041d6e3edcab412
SSDEEP

768:GibQIp1fB4vOfPe1y8egD9OgKnjM+JqW7tQ8GrBmSODbyR4kILpXrCK8IOqe2VXy:jbQIs90j128GrB7OnyR4T8IOj2ly

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

576 takeown.exe
948 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exetakeown.exe

pid process

948 icacls.exe
576 takeown.exe

pid	process
576	takeown.exe
948	icacls.exe

pid	process
948	icacls.exe
576	takeown.exe

Drops file in System32 directory 2 IoCs

Processes:

fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

description	ioc	process
File created	C:\Windows\SysWOW64\lnjc.exe	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe
File opened for modification	C:\Windows\SysWOW64\lnjc.exe	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

pid process

1132 fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

pid	process
1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

description	pid	process	target process
PID 1132 wrote to memory of 576	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	takeown.exe
PID 1132 wrote to memory of 576	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	takeown.exe
PID 1132 wrote to memory of 576	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	takeown.exe
PID 1132 wrote to memory of 576	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	takeown.exe
PID 1132 wrote to memory of 948	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	icacls.exe
PID 1132 wrote to memory of 948	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	icacls.exe
PID 1132 wrote to memory of 948	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	icacls.exe
PID 1132 wrote to memory of 948	1132	fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe
"C:\Users\Admin\AppData\Local\Temp\fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1132

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\lnjc.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:576

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\lnjc.exe" /grant SYSTEM:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:948

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:\Windows\SysWOW64\lnjc.exe
Filesize
68KB

MD5
0d0d544e4f10081806e7afe1f4aba1d6

SHA1
63f611feffb11ba7bbb415742ea0f405c0f2adf1

SHA256
fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6

SHA512
f06ed1e3f3f88ff805641bedab4ee1b3f2fb8f0f70224aea086bf0772cea88e97da69dc54487d4bbb05c7bbf03281c428ffe5e6bf2e9796a5041d6e3edcab412

Download Submit
memory/576-56-0x0000000000000000-mapping.dmp

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memory/948-58-0x0000000000000000-mapping.dmp

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