4ffcef811b06685f47df5b5118ab7aded2d438064e76199373b22584921071c2

Analysis

max time kernel
147s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 03:24

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General

Target

02d39bdf042aa00c8bbc6a6dc2549b71.exe
Size

963KB
MD5

02d39bdf042aa00c8bbc6a6dc2549b71
SHA1

190576579181f53d5920b470a795f454acbdb823
SHA256

4ffcef811b06685f47df5b5118ab7aded2d438064e76199373b22584921071c2
SHA512

fae9b2ba344220a36106b6102cf21d90a9880aad6efed519ab01ab596220888baaaf493a8a2ea1263d82c95fddcb75aa6443b6cd46d05b9f177198a9e84b059b
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjrHANUTNZ0i:r5sJo6YrFUiyAak11Ltjx0i

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4808	svchest425075242507520.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3200-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/3200-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4808-12-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4808-10-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x0008000000023212-8.dat	upx
behavioral2/files/0x0008000000023212-7.dat	upx
behavioral2/memory/3200-13-0x0000000000400000-0x0000000000597000-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\\02d39bdf042aa00c8bbc6a6dc2549b71.exe"	02d39bdf042aa00c8bbc6a6dc2549b71.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3200	02d39bdf042aa00c8bbc6a6dc2549b71.exe
4808	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe
File opened for modification	\??\c:\Windows\BJ.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe
File created	\??\c:\Windows\svchest425075242507520.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3200 wrote to memory of 4808	3200	02d39bdf042aa00c8bbc6a6dc2549b71.exe	20
PID 3200 wrote to memory of 4808	3200	02d39bdf042aa00c8bbc6a6dc2549b71.exe	20
PID 3200 wrote to memory of 4808	3200	02d39bdf042aa00c8bbc6a6dc2549b71.exe	20

C:\Users\Admin\AppData\Local\Temp\02d39bdf042aa00c8bbc6a6dc2549b71.exe
"C:\Users\Admin\AppData\Local\Temp\02d39bdf042aa00c8bbc6a6dc2549b71.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3200
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4808

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

C:\Windows\svchest425075242507520.exe

Filesize
92KB

MD5
8bcb4a51eb19715ce383a6e695aeb608

SHA1
b1e771a83c9c84f3271d117121658f71c8e526d2

SHA256
3a41afea7447dcb5b343b7b0b9623db4f74f9e240931730dbd2b8b06c2f0c457

SHA512
53112b0e2941bc259390dc1d037cebf164b22ed93c121beb72402f791474b8b88583dddc397d2cbc8e6249938bb4dc050d353943ee0d316b32d6c3283a814753

Download Submit
memory/3200-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3200-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/3200-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4808-12-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4808-10-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads