b2c0f28fa0cbc0cabc0d7789bc53b36f753315758d358eb39585f1f983ae8e8e

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 17:00

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General

Target

876a305eae535961eb9138e003810cea.exe
Size

6KB
MD5

876a305eae535961eb9138e003810cea
SHA1

7548d6485a1420b1315623c1c1d133936249b7a4
SHA256

b2c0f28fa0cbc0cabc0d7789bc53b36f753315758d358eb39585f1f983ae8e8e
SHA512

80190daaaeb0ecb2fa3568be15b5e971874f667ae259c8c06140bab729d243a2e31c6e887a7d13bef7c70840869fd6b123cd37da6b68a96aa647085a11eded5e
SSDEEP

96:ie+bbHPT40jFQIWV8flNfT6J13UH5OmBRfb2KjM4E5F8+LGHJbIaGMrm1YPkp:iJvT9+elZT66Tj71EI+L6JbIaGMpkp

Score

8^/10

evasion persistence upx

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3840	netsh.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3960-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/memory/3960-2-0x0000000000400000-0x000000000040A000-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\System = "C:\\Windows\\system32\\kernels64.exe"	876a305eae535961eb9138e003810cea.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\kernels64.exe	876a305eae535961eb9138e003810cea.exe
File opened for modification	C:\Windows\SysWOW64\kernels64.exe	876a305eae535961eb9138e003810cea.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 3840	3960	876a305eae535961eb9138e003810cea.exe	84
PID 3960 wrote to memory of 3840	3960	876a305eae535961eb9138e003810cea.exe	84
PID 3960 wrote to memory of 3840	3960	876a305eae535961eb9138e003810cea.exe	84

C:\Users\Admin\AppData\Local\Temp\876a305eae535961eb9138e003810cea.exe
"C:\Users\Admin\AppData\Local\Temp\876a305eae535961eb9138e003810cea.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall set allowedprogram 'C:\Users\Admin\AppData\Local\Temp\876a305eae535961eb9138e003810cea.exe' enable
  2⤵
  - Modifies Windows Firewall
  PID:3840

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3960-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

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memory/3960-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads