3487fca9c52bc651699795e2b7002aa7136bd4bff283ffb66e81f83f379c2252

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-10-2024 15:00

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General

Target

3487fca9c52bc651699795e2b7002aa7136bd4bff283ffb66e81f83f379c2252N.dll
Size

240KB
MD5

fb05218eb25efb8074de5d249a792110
SHA1

c19247e7aac34cb83dfc650565e41a46ba750e87
SHA256

3487fca9c52bc651699795e2b7002aa7136bd4bff283ffb66e81f83f379c2252
SHA512

3ad3d159107b556b8e1c8f426068403e07f633a5777270d9c5a61aaff7737462b72ce7e5cf0128e4808bc0834b2b7095ca35c096a844bd5b560a96972310a969
SSDEEP

3072:4FU2htx4zzYrr2grjETB68dzeJghG9B6Qi4oXnfybQ52XiE1Tx8wLvEuFQqvmH/p:4tSw0TPdcgE6QNWfOVTxtcuF3mfctlU

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\altvxvm = "{11337C1A-2DEF-443A-A757-5534758E1A5D}"	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11337C1A-2DEF-443A-A757-5534758E1A5D}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11337C1A-2DEF-443A-A757-5534758E1A5D}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11337C1A-2DEF-443A-A757-5534758E1A5D}\InProcServer32\ = "C:\\Windows\\altvxvm.dll"	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2868	2464	rundll32.exe	82
PID 2464 wrote to memory of 2868	2464	rundll32.exe	82
PID 2464 wrote to memory of 2868	2464	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3487fca9c52bc651699795e2b7002aa7136bd4bff283ffb66e81f83f379c2252N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3487fca9c52bc651699795e2b7002aa7136bd4bff283ffb66e81f83f379c2252N.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2868

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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