b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8

Analysis

max time kernel
38s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-10-2022 00:12

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General

Target

b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe
Size

52KB
MD5

02c441297075ab5ef52b0ff01cd41a86
SHA1

e6f649ee6c0c1641276cb7cbc19e7575d93edb37
SHA256

b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8
SHA512

47dc5cacca476425f2d4dfef2bcc0f27b225a7b093fc9ac5e6b8b99b6122b223a58b5e48ac359d9d05dcb6c4105b5b28ea0a161582ae642fc0a1ee6ae6d05462
SSDEEP

768:N1Xq5eM+0UXmx327Swo0NTuF2pgfuDeeg93Kk1TG2ocRsIEUj:NckB0UQGbcPfQiKEHlKUj

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

576 takeown.exe
1168 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

576 takeown.exe
1168 icacls.exe

pid	process
576	takeown.exe
1168	icacls.exe

pid	process
576	takeown.exe
1168	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WYHOYu = "c:\\windows\\system32\\wtkj.exe"	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

Drops file in System32 directory 2 IoCs

Processes:

b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\wtkj.exe	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe
File opened for modification	\??\c:\windows\SysWOW64\wtkj.exe	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

pid process

1872 b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

pid	process
1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe

description	pid	process	target process
PID 1872 wrote to memory of 576	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	takeown.exe
PID 1872 wrote to memory of 576	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	takeown.exe
PID 1872 wrote to memory of 576	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	takeown.exe
PID 1872 wrote to memory of 576	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	takeown.exe
PID 1872 wrote to memory of 1168	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	icacls.exe
PID 1872 wrote to memory of 1168	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	icacls.exe
PID 1872 wrote to memory of 1168	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	icacls.exe
PID 1872 wrote to memory of 1168	1872	b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe
"C:\Users\Admin\AppData\Local\Temp\b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1872

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

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "c:\windows\system32\wtkj.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1168

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\wtkj.exe
Filesize
52KB

MD5
02c441297075ab5ef52b0ff01cd41a86

SHA1
e6f649ee6c0c1641276cb7cbc19e7575d93edb37

SHA256
b63e6dd37cb7379a3955b0e8c9437b0c233dc89364da701b0686746e981bf8d8

SHA512
47dc5cacca476425f2d4dfef2bcc0f27b225a7b093fc9ac5e6b8b99b6122b223a58b5e48ac359d9d05dcb6c4105b5b28ea0a161582ae642fc0a1ee6ae6d05462

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

Download
memory/1168-57-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads