63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6

Analysis

max time kernel
133s
max time network
156s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
01/09/2025, 21:28

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General

Target
63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe
Size 85KB
Sample250901-1a99saskv3
SHA256 63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6
MD5 c2a0344a2bbb29d9b56d378386afcbed
SHA1 015425010bd4cf9d511f7fcd0fc17fc17c23eec1
SHA512 b05347ae6646bc1dda93d1c10a526287937313ed06d67db70763c2ca84cf2d1bbe375a2032c50aeceb463aea51271608809f49f30acc3b2b23b2c598398107e3
SSDEEP 1536:KrPEVJDbtGMbjwk9bGCMdb2+eYLUDkZw37XnmcstqE3k1:Krsrb0abGCMdb/lLUDewrXn0t4
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery

Malware Config

Signatures

Badlisted process makes network request 4 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	6124	rundll32.exe
3	6124	rundll32.exe
5	6124	rundll32.exe
8	6124	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
6124	rundll32.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\api-ms-win-downlevel-profile-l1-1-0.dll	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3543619C-D563-43f7-95EA-4DA7E1CC396A}\InProcServer32\ = "C:\\Windows\\SysWow64\\api-ms-win-downlevel-profile-l1-1-0.dll"	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3543619C-D563-43f7-95EA-4DA7E1CC396A}	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3543619C-D563-43f7-95EA-4DA7E1CC396A}\ = "Microsoft security"	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3543619C-D563-43f7-95EA-4DA7E1CC396A}\InProcServer32	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
6124	rundll32.exe
6124	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5908 wrote to memory of 6124	5908	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe	78
PID 5908 wrote to memory of 6124	5908	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe	78
PID 5908 wrote to memory of 6124	5908	63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe	78

C:\Users\Admin\AppData\Local\Temp\63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe
"C:\Users\Admin\AppData\Local\Temp\63d0b28114f6277b901132bc1cc1f541a594ee72f27d95653c54e1b73382a5f6.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5908
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\api-ms-win-downlevel-profile-l1-1-0.dll",init
  2⤵
  - Badlisted process makes network request
  - Loads dropped DLL
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:6124

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

api-ms-win-downlevel-profile-l1-1-0.dll

Path C:\Users\Admin\AppData\Local\Temp\api-ms-win-downlevel-profile-l1-1-0.dll
Size 40KB
SHA256 261b0a5912965ea95b8ae02aae1e761a61f9ad3a9fb85ef781e62013d6a21368
MD5 2dfc90375a09459033d430d046216d22
SHA1 ed9f3e5e889d281437b945993c6c2a80c60fdedc
SHA512 2d294a2089935775cbc2f7d49e6c50f7ff4ce33cc0396d4190001fa566e2deceae53f49fed86e54056e4b50bada2b76e38d9380ce869d6b4881ba613a80f419c
SSDEEP 768:ZvbptYls7in5zTT67jUo9RMbtvVJekV3mFuifoSbwHJRDCY/E6PF3PvoEy:xltms2n5vW7oo9R8tvV4Ow0kKXfc6Pzy
MD5 SHA1 SHA512 SSDEEP

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