b4d38ca8d15ea651ac5e1a5de5d81c4e2edc54845d6ae7a7beb03a243c3965f6

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2025, 14:55

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General

Target
$SYSDIR/msvcp71.dll
Size 492KB
Sample250127-sapdbavjdr
SHA256 6c483cbe349863c7dcf6f8cb7334e7d28c299e7d5aa063297ea2f62352f6bdd9
MD5 a94dc60a90efd7a35c36d971e3ee7470
SHA1 f936f612bc779e4ba067f77514b68c329180a380
SHA512 ff6c41d56337cac074582002d60cbc57263a31480c67ee8999bc02fc473b331eefed93ee938718d297877cf48471c7512741b4aebc0636afc78991cdf6eddfab
SSDEEP 12288:b692dAsfQqt4oJcRYRhUgiW6QR7t5k3Ooc8iHkC2ek:bSYACJcRYe3Ooc8iHkC2e
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2680	5064	WerFault.exe	82

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 3 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 5064	4664	rundll32.exe	82
PID 4664 wrote to memory of 5064	4664	rundll32.exe	82
PID 4664 wrote to memory of 5064	4664	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\msvcp71.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\msvcp71.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5064
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 604
    3⤵
    - Program crash
    PID:2680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 5064 -ip 5064
1⤵
PID:508

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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