a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59

Analysis

max time kernel
14s
max time network
17s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2022 22:21

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General

Target

a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe
Size

44KB
MD5

0209a13e3d0f2b978d9e309f68161c76
SHA1

33ccb491cdba8109694bb5d08b0482bd51956e9c
SHA256

a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59
SHA512

39f62d73e8687fd9034050132e8fdc1c8276b7981f023e38400d0c047ec3f0c4bca925499394b1221c8d97e019ad3e38ed9ca0c18f70871b69a7776be9a79a25
SSDEEP

768:9E9qsouMMNK/dwGV9lNjVeleaGVqrdQGnRwPqU3SZflQ3U5Ihr+TW74bfbIEpTpr:vBP/q7X5Rav3k

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

4308 takeown.exe
2388 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

4308 takeown.exe
2388 icacls.exe

pid	process
4308	takeown.exe
2388	icacls.exe

pid	process
4308	takeown.exe
2388	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\avfo = "c:\\windows\\system32\\qwcws.exe"	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

Drops file in System32 directory 2 IoCs

Processes:

a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\qwcws.exe	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe
File opened for modification	\??\c:\windows\SysWOW64\qwcws.exe	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

pid process

2732 a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

pid	process
2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe

description	pid	process	target process
PID 2732 wrote to memory of 4308	2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe	takeown.exe
PID 2732 wrote to memory of 4308	2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe	takeown.exe
PID 2732 wrote to memory of 4308	2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe	takeown.exe
PID 2732 wrote to memory of 2388	2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe	icacls.exe
PID 2732 wrote to memory of 2388	2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe	icacls.exe
PID 2732 wrote to memory of 2388	2732	a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe
"C:\Users\Admin\AppData\Local\Temp\a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Windows\SysWOW64\takeown.exe
  C:\Windows\system32\takeown.exe /f "c:\windows\system32\qwcws.exe"
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:4308
- C:\Windows\SysWOW64\icacls.exe
  C:\Windows\system32\icacls.exe "c:\windows\system32\qwcws.exe" /grant Users:F
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:2388

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

Replay Monitor

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Downloads

\??\c:\windows\SysWOW64\qwcws.exe

Filesize
44KB

MD5
0209a13e3d0f2b978d9e309f68161c76

SHA1
33ccb491cdba8109694bb5d08b0482bd51956e9c

SHA256
a29fabf176589e6e5f54bfa8bb1dd3b9269104bd4af26f8702e0d16b8e412c59

SHA512
39f62d73e8687fd9034050132e8fdc1c8276b7981f023e38400d0c047ec3f0c4bca925499394b1221c8d97e019ad3e38ed9ca0c18f70871b69a7776be9a79a25

Download Submit
memory/2388-135-0x0000000000000000-mapping.dmp

Download
memory/4308-134-0x0000000000000000-mapping.dmp

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