7f1379494206446bcd9e4c082bf2f15b84e06f903745c753d3f574432b74fb3e

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 08:26

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General

Target

$TEMP/ExCertTool.dll
Size

4KB
MD5

2bd5d302153bf0675b7ddec40aca6302
SHA1

7e1c08457c5e9514adc79df06cfbf2cfb368c6b3
SHA256

81903972afded5dd07e55950c8246cbd99b40206e6f3f20b638fe3c02cd45c54
SHA512

1ace75e86b5108525bbcc150a7355b98456047ee4de2daa3292804285dfa175749de2e2f65b8706c4af8843d75e9221a5ceaa48875bd1050b61e730b21c5dd5f
SSDEEP

48:SVFgLMs95lR5mulZSDPxJmwcialtDS4O:A+TZ7xKDPxJmSol

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	rundll32.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\8E3BF065AD6025977FC25B37DFE962AF420C7935	rundll32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\8E3BF065AD6025977FC25B37DFE962AF420C7935\Blob = 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	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28
PID 1744 wrote to memory of 2004	1744	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\ExCertTool.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\ExCertTool.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:2004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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