cb820e8cb5134272cb4c849682b2728fb40e09d6ac914274e361a5c1be851e82

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 07:21

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General

Target

a332b26f255b3c8a13cd6bd8f67f4387.exe
Size

189KB
MD5

a332b26f255b3c8a13cd6bd8f67f4387
SHA1

f724929f98313ca3271c6a653f4aeb3b68ec4a43
SHA256

cb820e8cb5134272cb4c849682b2728fb40e09d6ac914274e361a5c1be851e82
SHA512

18cb03a4e646c45dedd6713b5ecea0c723d008ae984c9f360aa54a8816c0d8586b180b661c695a3e6d9eaf9d530a97a6816a2cf5177a07e4a49524cc8806718c
SSDEEP

3072:9BgW+dUEGvfZ3d/NSDs0/rx7uGm9wr8xblwuY4pWSHUtULXPo31nSKn:9B2tGvl4b/x+CuY4dUtULfo31

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2376	nodkrn23.exe

Adds Run key to start application 2 TTPs 2 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\Microsoft Svchost local services = "nodkrn23.exe"	nodkrn23.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\Microsoft Svchost local services = "nodkrn23.exe"	nodkrn23.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\nodkrn23.exe	a332b26f255b3c8a13cd6bd8f67f4387.exe
File opened for modification	C:\Windows\nodkrn23.exe	a332b26f255b3c8a13cd6bd8f67f4387.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2376	2200	a332b26f255b3c8a13cd6bd8f67f4387.exe	28
PID 2200 wrote to memory of 2376	2200	a332b26f255b3c8a13cd6bd8f67f4387.exe	28
PID 2200 wrote to memory of 2376	2200	a332b26f255b3c8a13cd6bd8f67f4387.exe	28
PID 2200 wrote to memory of 2376	2200	a332b26f255b3c8a13cd6bd8f67f4387.exe	28

C:\Users\Admin\AppData\Local\Temp\a332b26f255b3c8a13cd6bd8f67f4387.exe
"C:\Users\Admin\AppData\Local\Temp\a332b26f255b3c8a13cd6bd8f67f4387.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\nodkrn23.exe
  C:\Windows\nodkrn23.exe 512 "C:\Users\Admin\AppData\Local\Temp\a332b26f255b3c8a13cd6bd8f67f4387.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:2376

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\nodkrn23.exe

Filesize
189KB

MD5
a332b26f255b3c8a13cd6bd8f67f4387

SHA1
f724929f98313ca3271c6a653f4aeb3b68ec4a43

SHA256
cb820e8cb5134272cb4c849682b2728fb40e09d6ac914274e361a5c1be851e82

SHA512
18cb03a4e646c45dedd6713b5ecea0c723d008ae984c9f360aa54a8816c0d8586b180b661c695a3e6d9eaf9d530a97a6816a2cf5177a07e4a49524cc8806718c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads