4fbdde800542ed7446db9a2a87ee0da5a8479f547779aa138a4d3f5a17343677

Analysis

max time kernel
140s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2025, 02:39

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General

Target

Codecs/CoreAVC.dll
Size

265KB
MD5

a45cfb1f058297ae981f8afeef056b8d
SHA1

e454ed585a0f19d3119cef725958ea19c93cd7cf
SHA256

779768aa0bf2270422e1686547ae622238e7b7cf37ce212a1d75caf8628c1508
SHA512

efa87c97e4f76d5fbd73d2e0c5c580c719518d4e3e7e16efdb1355b659c9584956bc7df944f0d637f069f359a046fe65bfd178e4cbaf97fbb5921ebd29e09aa0
SSDEEP

6144:/+x+B++xX1f3uZINBKD5wlA9amB38sDFe9E23XbFDZ:Wi+A1fJ2wlhmKsg22nbNZ

Score

3^/10

discovery

Malware Config

Signatures

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	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 1624	828	regsvr32.exe	87
PID 828 wrote to memory of 1624	828	regsvr32.exe	87
PID 828 wrote to memory of 1624	828	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Codecs\CoreAVC.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Codecs\CoreAVC.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1624-0-0x00000000756A0000-0x00000000757B2000-memory.dmp

Filesize
1.1MB

Download
memory/1624-5-0x00000000005D0000-0x00000000005D2000-memory.dmp

Filesize
8KB

Download
memory/1624-6-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/1624-1-0x00000000756A0000-0x00000000757B2000-memory.dmp

Filesize
1.1MB

Download