6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0

Analysis

max time kernel
138s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2022 07:24

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General

Target

6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe
Size

40KB
MD5

39e06fa3fe6139e3e5a6ed304b24fef1
SHA1

37cf399df7c64470ee93d3fe93d71aa0b823ad73
SHA256

6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0
SHA512

37ed818cc28645184f6354be6152d222b165ff85de6e6bb708945da9122f5bc8ae1eb07818004e8d5391fd3310a1878223a57427f00e70e14a8db20bf33781fc
SSDEEP

768:/LzFu+aS/kEI6w9yBfey0/RklFRCfq6RB:/Lgo9w9yZX0/KFRCfq6RB

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

2308 takeown.exe
212 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

2308 takeown.exe
212 icacls.exe

pid	process
2308	takeown.exe
212	icacls.exe

pid	process
2308	takeown.exe
212	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\oFE = "C:\\Windows\\system32\\ytml.exe"	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

Drops file in System32 directory 2 IoCs

Processes:

6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

description	ioc	process
File created	C:\Windows\SysWOW64\ytml.exe	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe
File opened for modification	C:\Windows\SysWOW64\ytml.exe	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

pid process

1864 6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

pid	process
1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe

description	pid	process	target process
PID 1864 wrote to memory of 2308	1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe	takeown.exe
PID 1864 wrote to memory of 2308	1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe	takeown.exe
PID 1864 wrote to memory of 2308	1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe	takeown.exe
PID 1864 wrote to memory of 212	1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe	icacls.exe
PID 1864 wrote to memory of 212	1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe	icacls.exe
PID 1864 wrote to memory of 212	1864	6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe
"C:\Users\Admin\AppData\Local\Temp\6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\ytml.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2308

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\ytml.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:212

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\ytml.exe
Filesize
40KB

MD5
39e06fa3fe6139e3e5a6ed304b24fef1

SHA1
37cf399df7c64470ee93d3fe93d71aa0b823ad73

SHA256
6e85e093f460673b937a31c0e42946768bc808efee649872437d37403385afd0

SHA512
37ed818cc28645184f6354be6152d222b165ff85de6e6bb708945da9122f5bc8ae1eb07818004e8d5391fd3310a1878223a57427f00e70e14a8db20bf33781fc

Download Submit
memory/212-135-0x0000000000000000-mapping.dmp

Download
memory/2308-134-0x0000000000000000-mapping.dmp

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