e3471dc1dda5a8259a85c90f5a66c60fb1f3b4e5b45cb3f3f49a43d97888fef9

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 08:11

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

75ed96254fbf894e42058062b4b4f0d1
SHA1

996503f1383b49021eb3427bc28d13b5bbd11977
SHA256

a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
SHA512

58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4
SSDEEP

192:X24sihno0bW+l97H4GB7QDs91kMtwtobTr4u+QHbazMNHT7dmNIEr:m8vJl97JeoxtN/r3z7YV

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1700	2564	WerFault.exe	30

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2084 wrote to memory of 2564	2084	rundll32.exe	30
PID 2564 wrote to memory of 1700	2564	rundll32.exe	31
PID 2564 wrote to memory of 1700	2564	rundll32.exe	31
PID 2564 wrote to memory of 1700	2564	rundll32.exe	31
PID 2564 wrote to memory of 1700	2564	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2564 -s 220
    3⤵
    - Program crash
    PID:1700

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

Windows 7 deprecation

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