48260b4e9ecbee92e4c467de79f84b6466985387636d688f35eb930c6a8f1d07

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 10:48

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General

Target

d350709be85cab9b1f112530541afb2f.exe
Size

320KB
MD5

d350709be85cab9b1f112530541afb2f
SHA1

04fadd3175cba341c0a1a2efdb425788eaf66b95
SHA256

48260b4e9ecbee92e4c467de79f84b6466985387636d688f35eb930c6a8f1d07
SHA512

8efc106621c0ee793c0852fd8875e741af3dac2be01dfb9010daf563220fb33ca2c9226f7d691631407ffe5bfa706479bf261dd0915ccc515b51ba296e4e13c1
SSDEEP

6144:m+4Xid6tGhNubOvIowXKWCx5OVprYOaFJI1C/ssFjaS9YtF:0tGnvwLCx5OTAc1Qxl0F

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 6 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\IcmpSettings	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\IcmpSettings\AllowInboundEchoRequest = "1"	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\svchost.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe:*:Enabled:svchost"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
100	svchost.exe

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\wmupdate = "C:\\Windows\\wmupdate.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\wmupdate.exe	svchost.exe
File created	C:\Windows\wmupdate.exe	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
100	svchost.exe
100	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 100	3244	d350709be85cab9b1f112530541afb2f.exe	89
PID 3244 wrote to memory of 100	3244	d350709be85cab9b1f112530541afb2f.exe	89
PID 3244 wrote to memory of 100	3244	d350709be85cab9b1f112530541afb2f.exe	89

C:\Users\Admin\AppData\Local\Temp\d350709be85cab9b1f112530541afb2f.exe
"C:\Users\Admin\AppData\Local\Temp\d350709be85cab9b1f112530541afb2f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  PID:100

C:\Windows\system32\WerFault.exe
"C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20240318-1049.dmp
1⤵
PID:2856

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

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
320KB

MD5
d350709be85cab9b1f112530541afb2f

SHA1
04fadd3175cba341c0a1a2efdb425788eaf66b95

SHA256
48260b4e9ecbee92e4c467de79f84b6466985387636d688f35eb930c6a8f1d07

SHA512
8efc106621c0ee793c0852fd8875e741af3dac2be01dfb9010daf563220fb33ca2c9226f7d691631407ffe5bfa706479bf261dd0915ccc515b51ba296e4e13c1

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