721582ffe4abce8f7488a3b31c4c948b8ba9f439065437c6c9bd1c950f9446b9

Resubmissions

17/01/2025, 13:15

250117-qhg8vsypcz 4

17/01/2025, 11:29

250117-nlw53swmar 4

09/01/2025, 21:28

250109-1bc1ns1qgt 4

05/01/2025, 19:25

250105-x44gjstlew 10

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/01/2025, 21:28

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General

Target

concrt140.dll
Size

237KB
MD5

abdef5f24d965beb17acc7948b4bebfd
SHA1

d671e6fe9fb1b9a675f3ea50a15d5318e7af0978
SHA256

4e822f847073f81c781be433eff6c68db616efad49cee50a5e19997fb46a9da0
SHA512

fde514a3bda56ffcfeaaaa7ddf6a4c89130d5f52936c82e9d8c5d771cbc228e387d0845300be98d7f40d4ca3b06c8a783411ddc0c1e258e10745a50d0fe1115e
SSDEEP

6144:YVtg4bkcTc3uYSw5ejegvGw9xEPOL8an39bkH1r12z/WK3b+B:YI4xL+wsQ8anK1AzrG

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3044	2964	WerFault.exe	28

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 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 1072 wrote to memory of 2964	1072	rundll32.exe	28
PID 2964 wrote to memory of 3044	2964	rundll32.exe	29
PID 2964 wrote to memory of 3044	2964	rundll32.exe	29
PID 2964 wrote to memory of 3044	2964	rundll32.exe	29
PID 2964 wrote to memory of 3044	2964	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\concrt140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\concrt140.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 224
    3⤵
    - Program crash
    PID:3044

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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