bedac3118d59b43e8479c416de7c5a7792562ec9163ce844930587dbe3b4b4ba

Analysis

max time kernel
147s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 23:08

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General

Target

1f774e6463e3130389ba2b69c95e597a.exe
Size

1.0MB
MD5

1f774e6463e3130389ba2b69c95e597a
SHA1

7ed859ef94dfb64bd4605dd72ef7e73cd7f66d35
SHA256

bedac3118d59b43e8479c416de7c5a7792562ec9163ce844930587dbe3b4b4ba
SHA512

3be45c9f8c99aa62d805f66ba1a4c0b757c735308883f8ad57f4fbb3ba565e6656ec60c652032991138d3b2a58d6c7cdcc3d04fe6206fdb03bc929055671480c
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjF9:r5sJo6YrFUiyAak11LtjF9

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2284	svchest425075242507520.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3532-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/3532-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/2284-10-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/2284-12-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/3532-13-0x0000000000400000-0x0000000000597000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1f774e6463e3130389ba2b69c95e597a.exe"	1f774e6463e3130389ba2b69c95e597a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3532	1f774e6463e3130389ba2b69c95e597a.exe
2284	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	1f774e6463e3130389ba2b69c95e597a.exe
File created	\??\c:\Windows\svchest425075242507520.exe	1f774e6463e3130389ba2b69c95e597a.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	1f774e6463e3130389ba2b69c95e597a.exe
File created	\??\c:\Windows\BJ.exe	1f774e6463e3130389ba2b69c95e597a.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 2284	3532	1f774e6463e3130389ba2b69c95e597a.exe	22
PID 3532 wrote to memory of 2284	3532	1f774e6463e3130389ba2b69c95e597a.exe	22
PID 3532 wrote to memory of 2284	3532	1f774e6463e3130389ba2b69c95e597a.exe	22

C:\Users\Admin\AppData\Local\Temp\1f774e6463e3130389ba2b69c95e597a.exe
"C:\Users\Admin\AppData\Local\Temp\1f774e6463e3130389ba2b69c95e597a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3532
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2284-10-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2284-12-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3532-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3532-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3532-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads