ba18ff142bae31457031ca49e772b10792ad3a5bdead90cb2c1d37e2a6c2fd59

Analysis

max time kernel
69s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2025 17:59

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General

Target

Malware-Feed-master/2020.07.23_FBI-FLASH-AC-000129-TT/37aa87d3408dc3e211d63a3bb38c726787c47c06a19e77f6a14861a91c2dcb35.dll
Size

332KB
MD5

26e71f1d387298162c1b19e858d001a1
SHA1

ecc74b845278696e41220ea1972e31119a5d0869
SHA256

37aa87d3408dc3e211d63a3bb38c726787c47c06a19e77f6a14861a91c2dcb35
SHA512

6e919b81b51c3d4f755465219213a6194fbebddff84d3a23377bfac2de7fc2468cceffea95d75ec979d9a706bb8d85aa03579f212879a91d581fe75fdb574421
SSDEEP

6144:NSGCZ4BejCRVfTwEGVyA8mydNLPwPQmTDIH6ECDR5Rnk/Z:NSGCZ0e+7wEmyAhyQ5b6h

Score

8^/10

discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\WMPAssis\Parameters\ServiceDll = "C:\\Windows\\system32\\msfils897.dat"	DllHost.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\WMPAssis\ImagePath = "%systemroot%\\system32\\svchost.exe -k WMPAG7600"	DllHost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wmsma.inf	rundll32.exe
File created	C:\Windows\system32\msfils897.dat	rundll32.exe
File opened for modification	C:\Windows\system32\msfils897.dat	rundll32.exe

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 3032	4300	rundll32.exe	79
PID 4300 wrote to memory of 3032	4300	rundll32.exe	79
PID 4300 wrote to memory of 3032	4300	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Malware-Feed-master\2020.07.23_FBI-FLASH-AC-000129-TT\37aa87d3408dc3e211d63a3bb38c726787c47c06a19e77f6a14861a91c2dcb35.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Malware-Feed-master\2020.07.23_FBI-FLASH-AC-000129-TT\37aa87d3408dc3e211d63a3bb38c726787c47c06a19e77f6a14861a91c2dcb35.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3032

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}
1⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- System Location Discovery: System Language Discovery
PID:1684

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

Server Software Component

T1505

Terminal Services DLL

T1505.005

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

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Downloads

C:\Windows\SysWOW64\wmsma.inf

Filesize
943B

MD5
41fe6dfe452786d33cd5bd300f3ed074

SHA1
67b04ef1f85023f7a35fdb1ef553bc8aa1a7c3e4

SHA256
425d944410d3c609192c53eeb69fab2db0d44bd02f636b7a99d23934f65dcb94

SHA512
74212f7ad90b9c1ac800e0f402ad810c44761761c0696a0910a1bcb9d14c5fbd3a0fd503900b040314ca110deed7bcbe9e30022a63f7b1216094b0e89f64e5f7

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads