7dfc02c08db857ddfdd585bd9e634cfed5178dfb59458a304e6f2f108ec44858

Resubmissions

03/09/2024, 21:45

240903-1l2f1sxgpp 9

03/09/2024, 21:41

240903-1jt9xsxglp 3

Analysis

max time kernel
32s
max time network
23s
platform
windows7_x64
resource
win7-20240903-es
resource tags

arch:x64arch:x86image:win7-20240903-eslocale:es-esos:windows7-x64systemwindows
submitted
03/09/2024, 21:45

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General

Target

$PLUGINSDIR/nsis7z.dll
Size

424KB
MD5

80e44ce4895304c6a3a831310fbf8cd0
SHA1

36bd49ae21c460be5753a904b4501f1abca53508
SHA256

b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
SHA512

c8ba7b1f9113ead23e993e74a48c4427ae3562c1f6d9910b2bbe6806c9107cf7d94bc7d204613e4743d0cd869e00dafd4fb54aad1e8adb69c553f3b9e5bc64df
SSDEEP

6144:aUWQQ5O3fz0NG3ucDaEUTWfk+ZA0NrCL/k+uyoyBOX1okfW7w+Pfzqibckl:an5QEG39fPAkrE4yrBOXDfaNbck

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3052	3036	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 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 2264 wrote to memory of 3036	2264	rundll32.exe	30
PID 3036 wrote to memory of 3052	3036	rundll32.exe	31
PID 3036 wrote to memory of 3052	3036	rundll32.exe	31
PID 3036 wrote to memory of 3052	3036	rundll32.exe	31
PID 3036 wrote to memory of 3052	3036	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 224
    3⤵
    - Program crash
    PID:3052

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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