fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8

Analysis

max time kernel
117s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
21-10-2022 17:47

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General

Target

fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe
Size

48KB
MD5

10ee7cce9524e4d2720a32f8fea16010
SHA1

d7e89b4db2324da4dec5d020946c2eb92484f4ba
SHA256

fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8
SHA512

4bf913bc1910dcceadb5471b63972303fe1d580bc2eb077ca221f31ddcf7fb6a448552021fe0142be7e3aa5ad631237a23a7bdc134980e275062a463e43fd268
SSDEEP

768:sy8oLLO1jQ4e0gIXVSJQ+Ma6wJsdt4ftfAtmGVC0LxZ76CTXh6:HFyH5+4w+tYA8GVFm6h6

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

804 takeown.exe
3584 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

804 takeown.exe
3584 icacls.exe

pid	process
804	takeown.exe
3584	icacls.exe

pid	process
804	takeown.exe
3584	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\pexr = "c:\\windows\\system32\\jpyy.exe"	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

Drops file in System32 directory 2 IoCs

Processes:

fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\jpyy.exe	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe
File opened for modification	\??\c:\windows\SysWOW64\jpyy.exe	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

pid process

4204 fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

pid	process
4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe

description	pid	process	target process
PID 4204 wrote to memory of 804	4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe	takeown.exe
PID 4204 wrote to memory of 804	4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe	takeown.exe
PID 4204 wrote to memory of 804	4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe	takeown.exe
PID 4204 wrote to memory of 3584	4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe	icacls.exe
PID 4204 wrote to memory of 3584	4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe	icacls.exe
PID 4204 wrote to memory of 3584	4204	fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe
"C:\Users\Admin\AppData\Local\Temp\fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4204

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "c:\windows\system32\jpyy.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:804

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "c:\windows\system32\jpyy.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:3584

Network

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

Replay Monitor

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Downloads

\??\c:\windows\SysWOW64\jpyy.exe
Filesize
48KB

MD5
10ee7cce9524e4d2720a32f8fea16010

SHA1
d7e89b4db2324da4dec5d020946c2eb92484f4ba

SHA256
fc648ef36d04ec585120f3a6415edb7fab6a4a79d4865ee83088eaa172c0e0a8

SHA512
4bf913bc1910dcceadb5471b63972303fe1d580bc2eb077ca221f31ddcf7fb6a448552021fe0142be7e3aa5ad631237a23a7bdc134980e275062a463e43fd268

Download Submit
memory/804-137-0x0000000000000000-mapping.dmp

Download
memory/3584-138-0x0000000000000000-mapping.dmp

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