1d6300fb759d3e44fc515c37bce65201e9d3d7430a7c7a65651162dd1f69f60c

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 16:22

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General

Target

$SYSDIR/Cmll15ex.dll
Size

759KB
MD5

ef979a5e294471aac177e2a6aad2e394
SHA1

2b11c49a3b127d5cb0f83a70529655fd97c57342
SHA256

02631578460310f8584fd6848da51795a08e093b0ca0db619d674bb88a454b01
SHA512

6e2b72ae87efb5856fde6639884a7a65b0271afe41f231324d20076740b80de5452f30a36b13a1cc49bb5339324f610e8c7200724c606be54b4d8a345f730e74
SSDEEP

12288:00IiHJcSGeam7TjBGeiYjbzmrUV6U316hx4uurpqJv9LObDxMleA:1/jY2eUqx4uurpqFJOh5A

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

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Main Wrapper	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}\ = "Main Wrapper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Main Wrapper\CLSID\ = "{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\Cmll15ex.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Main Wrapper\ = "Main Wrapper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Main Wrapper\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}\ProgID\ = "Main Wrapper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3CBAE4E0-8880-11D2-96A3-0060086FEFCF}\InProcServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31
PID 2636 wrote to memory of 2672	2636	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\Cmll15ex.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\Cmll15ex.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2672

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

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Downloads

memory/2672-0-0x0000000000B60000-0x0000000000D4A000-memory.dmp

Filesize
1.9MB

Download
memory/2672-2-0x0000000000D50000-0x0000000000E12000-memory.dmp

Filesize
776KB

Download
memory/2672-4-0x00000000009E0000-0x0000000000AA2000-memory.dmp

Filesize
776KB

Download