719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2022, 16:26

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General

Target

719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
Size

894KB
MD5

a1b4a2115b4bb283982ed64585d85b40
SHA1

eddb63a9107a8ae7f81be832ff6cad41792d6de5
SHA256

719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e
SHA512

8e05e97ac9d014eeb5eb50a199b7bb46ac0d62d66baf224b8bd2ac12c6f23ae219ae7ccbc0bae946d92305f1e87e5eea7d3cf60c1e15dbdfb579d5505f8cc117
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjX:r5sJo6YrFUiyAak11LtjX

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4652	svchest425075242507520.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4524-132-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4524-134-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x0009000000022e07-137.dat	upx
behavioral2/files/0x0009000000022e07-136.dat	upx
behavioral2/memory/4652-138-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4652-140-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4524-141-0x0000000000400000-0x0000000000597000-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	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe"	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4524	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
4652	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
File created	\??\c:\Windows\BJ.exe	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
File opened for modification	\??\c:\Windows\BJ.exe	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
File created	\??\c:\Windows\svchest425075242507520.exe	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 4652	4524	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe	80
PID 4524 wrote to memory of 4652	4524	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe	80
PID 4524 wrote to memory of 4652	4524	719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe	80

C:\Users\Admin\AppData\Local\Temp\719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe
"C:\Users\Admin\AppData\Local\Temp\719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4524
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4652

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
894KB

MD5
a1b4a2115b4bb283982ed64585d85b40

SHA1
eddb63a9107a8ae7f81be832ff6cad41792d6de5

SHA256
719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e

SHA512
8e05e97ac9d014eeb5eb50a199b7bb46ac0d62d66baf224b8bd2ac12c6f23ae219ae7ccbc0bae946d92305f1e87e5eea7d3cf60c1e15dbdfb579d5505f8cc117

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

Filesize
894KB

MD5
a1b4a2115b4bb283982ed64585d85b40

SHA1
eddb63a9107a8ae7f81be832ff6cad41792d6de5

SHA256
719b9293c134a65fa7ce65ebea8d8e30e858ad35dcac72b8fa8eaa0aaa87e08e

SHA512
8e05e97ac9d014eeb5eb50a199b7bb46ac0d62d66baf224b8bd2ac12c6f23ae219ae7ccbc0bae946d92305f1e87e5eea7d3cf60c1e15dbdfb579d5505f8cc117

Download Submit
memory/4524-132-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4524-134-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4524-141-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4652-138-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4652-140-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download