0b82dc0c1bdb222a96f2f4d191fdf4d8e93ca5c41f2c9af2e92882e1c47263f5

Analysis

max time kernel
93s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14-09-2024 16:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

$PLUGINSDIR/nsRandom.dll
Size

21KB
MD5

ab467b8dfaa660a0f0e5b26e28af5735
SHA1

596abd2c31eaff3479edf2069db1c155b59ce74d
SHA256

db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73
SHA512

7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301
SSDEEP

384:LCHDPMs4GdtyO5roguusMxUXiO3wOw95euooP2UgKbd9BvNtf:LCHD6Gh87MKXil/5r2U3z

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral14/memory/4868-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral14/memory/4868-2-0x0000000000400000-0x0000000000412000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4512 4868 WerFault.exe rundll32.exe
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

pid	pid_target	process	target process
4512	4868	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3328 wrote to memory of 4868	3328	rundll32.exe	rundll32.exe
PID 3328 wrote to memory of 4868	3328	rundll32.exe	rundll32.exe
PID 3328 wrote to memory of 4868	3328	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRandom.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRandom.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4868
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 620
    3⤵
    - Program crash
    PID:4512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4868 -ip 4868
1⤵
PID:752

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4868-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4868-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download