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
129s
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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Report Analysis Logs

General

Target

ucrtbase.dll
Size

863KB
MD5

8ed02a1a11cec72b6a6a4989bf03cfcc
SHA1

172908ff0f8d7e1c0cbf107f7075ed1dba4b36c8
SHA256

4fd02f2699c49579319079b963425991198f59cb1589b8afa8795b5d6a0e5db3
SHA512

444fe62a5c324d38bdc055d298b5784c741f3ca8faaeaed591bd6dcf94205dbf28c7d7f7d3825ccb99eff04e3ffd831e3f98d9b314820841a0c0960ae6a5e416
SSDEEP

24576:0WmPrDND1ONC1r4pD84TfEXpS8sYsen/mKvTZuoy4YJp:DmPrBu1ygr

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30
PID 2468 wrote to memory of 1688	2468	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ucrtbase.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ucrtbase.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1688

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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