6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d

Analysis

max time kernel
152s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 03:38

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General

Target

6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
Size

1.1MB
MD5

0a7f241ab20ed20fb980c53a4668a520
SHA1

209f96b863cb863fe8bafd67d6e576c97ad84a61
SHA256

6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d
SHA512

924f515cf27225ec8d7380518499df6858fa6175684c2e6bdde37eebf5185a3c5c7f01992578c8e6bf6227c8c66a7168ab54f4c1d9f17cbe8f587ec3498d629b
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjGeyc8I:r5sJo6YrFUiyAak11LtjGeyc8I

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2256	svchest425075242507520.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2736-132-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x0002000000022def-135.dat	upx
behavioral2/files/0x0002000000022def-136.dat	upx
behavioral2/memory/2736-137-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/2256-139-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/2256-138-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/2256-141-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/2736-142-0x0000000000400000-0x0000000000597000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe"	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2736	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
2256	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
File opened for modification	\??\c:\Windows\BJ.exe	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
File created	\??\c:\Windows\svchest425075242507520.exe	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2256	2736	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe	83
PID 2736 wrote to memory of 2256	2736	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe	83
PID 2736 wrote to memory of 2256	2736	6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe	83

C:\Users\Admin\AppData\Local\Temp\6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe
"C:\Users\Admin\AppData\Local\Temp\6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2736
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\svchest425075242507520.exe

Filesize
1.1MB

MD5
0a7f241ab20ed20fb980c53a4668a520

SHA1
209f96b863cb863fe8bafd67d6e576c97ad84a61

SHA256
6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d

SHA512
924f515cf27225ec8d7380518499df6858fa6175684c2e6bdde37eebf5185a3c5c7f01992578c8e6bf6227c8c66a7168ab54f4c1d9f17cbe8f587ec3498d629b

Download Submit
\??\c:\Windows\svchest425075242507520.exe

Filesize
1.1MB

MD5
0a7f241ab20ed20fb980c53a4668a520

SHA1
209f96b863cb863fe8bafd67d6e576c97ad84a61

SHA256
6ac34ba8052b4901361e1137e01bd37884f96096f7680845db3296f3cae5374d

SHA512
924f515cf27225ec8d7380518499df6858fa6175684c2e6bdde37eebf5185a3c5c7f01992578c8e6bf6227c8c66a7168ab54f4c1d9f17cbe8f587ec3498d629b

Download Submit
memory/2256-139-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2256-138-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2256-141-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2736-132-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2736-137-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2736-142-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download