597acac76ad725054269f8661e8d41c0066a73ed86076a8e76891a9f702edfca

General

Target

86256b0347d1f99d7dedb71d7a7b05cd.exe
Size

141KB
MD5

86256b0347d1f99d7dedb71d7a7b05cd
SHA1

4fffc3f48bf33bbad7f4b74716b9398202fb3313
SHA256

597acac76ad725054269f8661e8d41c0066a73ed86076a8e76891a9f702edfca
SHA512

686bbbec01af6eb6f69e190856fd50711da4194a9811a125f672a28b56b8dd20e6a4af3b5af7291909b64c0bdc0961fe09abc6cc4ca3169ec284a472ca4c4f72
SSDEEP

1536:lEMVgMhxse5RNrQtLCADmHyDDTjmlA7BITcyLxrsmwZK9gyJGtjRLQHpJP15jBYq:cIPemHyDDTKetITpZy2GQHZYT4as

Score

8^/10

evasion persistence

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2704 netsh.exe

pid	process
2704	netsh.exe

Drops startup file 4 IoCs

Processes:

86256b0347d1f99d7dedb71d7a7b05cd.exeywtbon.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wkjtc.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wkjtc.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wkjtc.exe	ywtbon.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wkjtc.exe	ywtbon.exe

Executes dropped EXE 2 IoCs

Processes:

ywtbon.exeywtbon.exe

pid process

2160 ywtbon.exe
1704 ywtbon.exe
Loads dropped DLL 2 IoCs

Processes:

86256b0347d1f99d7dedb71d7a7b05cd.exeywtbon.exe

pid process

2772 86256b0347d1f99d7dedb71d7a7b05cd.exe
2160 ywtbon.exe

pid	process
2160	ywtbon.exe
1704	ywtbon.exe

pid	process
2772	86256b0347d1f99d7dedb71d7a7b05cd.exe
2160	ywtbon.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

86256b0347d1f99d7dedb71d7a7b05cd.exeywtbon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Run\aihkgfge = "C:\\Users\\Admin\\AppData\\Local\\ywtbon.exe"	86256b0347d1f99d7dedb71d7a7b05cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\aihkgfge = "C:\\Users\\Admin\\AppData\\Local\\ywtbon.exe"	ywtbon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Run\aihkgfge = "C:\\Users\\Admin\\AppData\\Local\\ywtbon.exe"	ywtbon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\aihkgfge = "C:\\Users\\Admin\\AppData\\Local\\ywtbon.exe"	86256b0347d1f99d7dedb71d7a7b05cd.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

86256b0347d1f99d7dedb71d7a7b05cd.exeywtbon.exe

description	pid	process	target process
PID 1436 set thread context of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 2160 set thread context of 1704	2160	ywtbon.exe	ywtbon.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

86256b0347d1f99d7dedb71d7a7b05cd.exe86256b0347d1f99d7dedb71d7a7b05cd.exeywtbon.exe

description	pid	process	target process
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 1436 wrote to memory of 2772	1436	86256b0347d1f99d7dedb71d7a7b05cd.exe	86256b0347d1f99d7dedb71d7a7b05cd.exe
PID 2772 wrote to memory of 2704	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	netsh.exe
PID 2772 wrote to memory of 2704	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	netsh.exe
PID 2772 wrote to memory of 2704	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	netsh.exe
PID 2772 wrote to memory of 2704	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	netsh.exe
PID 2772 wrote to memory of 2160	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	ywtbon.exe
PID 2772 wrote to memory of 2160	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	ywtbon.exe
PID 2772 wrote to memory of 2160	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	ywtbon.exe
PID 2772 wrote to memory of 2160	2772	86256b0347d1f99d7dedb71d7a7b05cd.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe
PID 2160 wrote to memory of 1704	2160	ywtbon.exe	ywtbon.exe

C:\Users\Admin\AppData\Local\Temp\86256b0347d1f99d7dedb71d7a7b05cd.exe
"C:\Users\Admin\AppData\Local\Temp\86256b0347d1f99d7dedb71d7a7b05cd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1436

C:\Users\Admin\AppData\Local\Temp\86256b0347d1f99d7dedb71d7a7b05cd.exe
C:\Users\Admin\AppData\Local\Temp\86256b0347d1f99d7dedb71d7a7b05cd.exe
2⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2772

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram 1.exe 1 ENABLE
3⤵
- Modifies Windows Firewall
PID:2704

C:\Users\Admin\AppData\Local\ywtbon.exe
"C:\Users\Admin\AppData\Local\ywtbon.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2160

C:\Users\Admin\AppData\Local\ywtbon.exe
C:\Users\Admin\AppData\Local\ywtbon.exe
1⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
PID:1704

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\ywtbon.exe
Filesize
141KB

MD5
86256b0347d1f99d7dedb71d7a7b05cd

SHA1
4fffc3f48bf33bbad7f4b74716b9398202fb3313

SHA256
597acac76ad725054269f8661e8d41c0066a73ed86076a8e76891a9f702edfca

SHA512
686bbbec01af6eb6f69e190856fd50711da4194a9811a125f672a28b56b8dd20e6a4af3b5af7291909b64c0bdc0961fe09abc6cc4ca3169ec284a472ca4c4f72

Download Submit
C:\Users\Admin\AppData\Local\ywtbon.exe
Filesize
139KB

MD5
488ffb43ae1a276c7868842a3835be37

SHA1
57cfc73a6a07b683b18191bf35867477d9c2a322

SHA256
c75cfbe97ed137c92dc4dd6fc2645b26bd83953d1410c7f04f4412e488ad9f35

SHA512
d4f3049b037fcb30e7a1681b1f0722ce3f310fd022fa65f0fb6bd0839db99694fba900246f4fbe90b46b3667a320b99cd767cd1a97ae36ead0c2a1b8e253f9e9

Download Submit
memory/1436-8-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/1436-13-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/1436-15-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/1436-11-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/1436-75-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/1704-82-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-85-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-90-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-89-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-88-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-87-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-86-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-78-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-84-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-83-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-81-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-73-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-74-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-80-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-76-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1704-79-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2160-55-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2160-77-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2160-53-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2160-51-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2160-49-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2772-17-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-19-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-14-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-58-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-28-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-21-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-29-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2772-26-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads