f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3

Analysis

max time kernel
45s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 05:39

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General

Target

f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe
Size

40KB
MD5

050416a9cdaf618b5bb3f8ec9067d256
SHA1

88937ad89ac57caf7a1944e129d66760687f6342
SHA256

f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3
SHA512

7ab60552ead59a172a5e220157e2878703522b748068bf7aacac39a4822f4d67d2fec470b861dec4b7e520d92e7249c173f7a57ca75a008e37d596745e1cb81e
SSDEEP

768:/d0UfeEeJBdhlTrC/LKsvtwlb2PIUEmYjV5:/dZdwRm/Wsvt82PIVjV5

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
976 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
976 icacls.exe

pid	process
1756	takeown.exe
976	icacls.exe

pid	process
1756	takeown.exe
976	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\tNHfT = "C:\\Windows\\system32\\kzhe.exe"	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

Drops file in System32 directory 2 IoCs

Processes:

f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

description	ioc	process
File created	C:\Windows\SysWOW64\kzhe.exe	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe
File opened for modification	C:\Windows\SysWOW64\kzhe.exe	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

pid process

2020 f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

pid	process
2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe

description	pid	process	target process
PID 2020 wrote to memory of 1756	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	takeown.exe
PID 2020 wrote to memory of 1756	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	takeown.exe
PID 2020 wrote to memory of 1756	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	takeown.exe
PID 2020 wrote to memory of 1756	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	takeown.exe
PID 2020 wrote to memory of 976	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	icacls.exe
PID 2020 wrote to memory of 976	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	icacls.exe
PID 2020 wrote to memory of 976	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	icacls.exe
PID 2020 wrote to memory of 976	2020	f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe
"C:\Users\Admin\AppData\Local\Temp\f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\takeown.exe
  C:\Windows\system32\takeown.exe /f "C:\Windows\system32\kzhe.exe"
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:1756
- C:\Windows\SysWOW64\icacls.exe
  C:\Windows\system32\icacls.exe "C:\Windows\system32\kzhe.exe" /grant Users:F
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:976

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\kzhe.exe

Filesize
40KB

MD5
050416a9cdaf618b5bb3f8ec9067d256

SHA1
88937ad89ac57caf7a1944e129d66760687f6342

SHA256
f9580a877b01cf6fa1152605ac55b5aa8e2ee8b24aaf219aee8e8d0504bf60a3

SHA512
7ab60552ead59a172a5e220157e2878703522b748068bf7aacac39a4822f4d67d2fec470b861dec4b7e520d92e7249c173f7a57ca75a008e37d596745e1cb81e

Download Submit
memory/976-57-0x0000000000000000-mapping.dmp

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memory/1756-56-0x0000000000000000-mapping.dmp

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