ba18ff142bae31457031ca49e772b10792ad3a5bdead90cb2c1d37e2a6c2fd59

Analysis

max time kernel
118s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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\\msmpss087.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 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wmsma.inf	rundll32.exe
File created	C:\Windows\system32\msmpss087.dat	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\INF\setupapi.app.log	DllHost.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	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeRestorePrivilege	2084	DllHost.exe
Token: SeRestorePrivilege	2084	DllHost.exe
Token: SeRestorePrivilege	2084	DllHost.exe
Token: SeRestorePrivilege	2084	DllHost.exe
Token: SeRestorePrivilege	2084	DllHost.exe
Token: SeRestorePrivilege	2084	DllHost.exe
Token: SeRestorePrivilege	2084	DllHost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31
PID 2604 wrote to memory of 1760	2604	rundll32.exe	31

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:2604
- 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:1760

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
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2084

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
1d6f31aeca67b94496185fe3d6125983

SHA1
cff06646246e8108fffcd94cbf99505ce74879c6

SHA256
ef2be2a70b6f7e920015da75994dac4f8702deb036656e0d61dfc68dc2f4aaec

SHA512
486e7c22c667153d52b0bcc54d1dd495e180cca994c25ff8814670c7d4e84eaa8394ff6df509232608d201a538f59ee9f10883dcc22a98e7a5aa75226bed46d3

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads