014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586

Analysis

max time kernel
151s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 03:44

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General

Target

014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
Size

973KB
MD5

03ab05bffba9b1af8f458bc83d865255
SHA1

372bbfa5f4517788ee41fb38431e4247fa6ed9fc
SHA256

014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586
SHA512

8d358602f3b3e2f957caaa3e90104409e3d899e52b906c176f0e1673362cc691058a39c830dee9b1accf7dddad79239875ccc04eea826f74aaad0899e32231fa
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjrHANUTNZ0d9g:r5sJo6YrFUiyAak11Ltjx0d9g

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4296	svchest425075242507520.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3912-132-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/3912-135-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x0008000000022e29-137.dat	upx
behavioral2/files/0x0008000000022e29-136.dat	upx
behavioral2/memory/4296-138-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4296-139-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4296-141-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/3912-142-0x0000000000400000-0x0000000000597000-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	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe"	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3912	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
4296	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\svchest425075242507520.exe	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
File created	\??\c:\Windows\BJ.exe	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
File opened for modification	\??\c:\Windows\BJ.exe	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3912 wrote to memory of 4296	3912	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe	82
PID 3912 wrote to memory of 4296	3912	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe	82
PID 3912 wrote to memory of 4296	3912	014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe	82

C:\Users\Admin\AppData\Local\Temp\014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe
"C:\Users\Admin\AppData\Local\Temp\014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3912
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4296

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
973KB

MD5
03ab05bffba9b1af8f458bc83d865255

SHA1
372bbfa5f4517788ee41fb38431e4247fa6ed9fc

SHA256
014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586

SHA512
8d358602f3b3e2f957caaa3e90104409e3d899e52b906c176f0e1673362cc691058a39c830dee9b1accf7dddad79239875ccc04eea826f74aaad0899e32231fa

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

Filesize
973KB

MD5
03ab05bffba9b1af8f458bc83d865255

SHA1
372bbfa5f4517788ee41fb38431e4247fa6ed9fc

SHA256
014c641d58ec2b0c6ab20aeafbfeab832a9a0f7b180c82915dae479f55e18586

SHA512
8d358602f3b3e2f957caaa3e90104409e3d899e52b906c176f0e1673362cc691058a39c830dee9b1accf7dddad79239875ccc04eea826f74aaad0899e32231fa

Download Submit
memory/3912-132-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3912-135-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3912-142-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4296-138-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4296-139-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4296-141-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download