e2cd43d988121ee0cf9bdbaa46d5d1cc99dd742cb0540f674923621eef0d57fd

Analysis

max time kernel
117s
max time network
130s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02/08/2024, 19:27

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General

Target

TIR/CONFIG/MSVCRT.dll
Size

284KB
MD5

c93548203699d997ae43ada7542864c7
SHA1

1348a988763b7d382462ac88984c76e9f419cfd2
SHA256

dadad35bf69ede748178e83a9e66f8d5d371ef9b686d65ca969cd4d1b3cc5c93
SHA512

468fb151190418613808a9d570f54eb657a3e92b41f66d6a9b5976c042a0e1e2cff93e0f0f85628a0c107477e4c1f838f625af41b0885f107ae5e1e97fcaf341
SSDEEP

6144:/XX8B414AVWUmp5Ovk5FsKqmHQ8/MFMgiFjNr7mcl2I0BOqaK:/H47AVWUK5OvkQKqmB5UzT5

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1884	2036	WerFault.exe	31

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 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 1892 wrote to memory of 2036	1892	rundll32.exe	31
PID 2036 wrote to memory of 1884	2036	rundll32.exe	32
PID 2036 wrote to memory of 1884	2036	rundll32.exe	32
PID 2036 wrote to memory of 1884	2036	rundll32.exe	32
PID 2036 wrote to memory of 1884	2036	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\TIR\CONFIG\MSVCRT.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\TIR\CONFIG\MSVCRT.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 224
    3⤵
    - Program crash
    PID:1884

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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