8ffc036085a9e465fa52366aa43cd2a862c2a78c145425338dcca3db2f3158f4

Analysis

max time kernel
138s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 12:42

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General

Target

$SYSDIR/avsplugin/ds.dll
Size

24KB
MD5

573843773242b1d36764cb4fcabe4a28
SHA1

624cc28f3b78b3c0941573725ad9d7c67a0edb3f
SHA256

dc28073f46cbc473d28ee1468b3e9bcc9a31bb23b4caf16341e3f3b804df8f5e
SHA512

c33f9b7321a12a63b0793b7bc2459b0dda0d5b9cc3be824edab7b406f15e0fcd38b49a5b583c6741a9371db6f99dc899b693146cc10bd72197025e1219c300e5
SSDEEP

384:gkdA80ym0XGYqSSVUdKoJB9hdbSxHbydXhIgn/dgcGo7P23:gNPymz2SAJ/Sx7yd9n/dpGo7P

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral24/memory/2064-0-0x0000000010000000-0x0000000010017000-memory.dmp	upx
behavioral24/memory/2064-2-0x0000000010000000-0x0000000010017000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2752	2064	WerFault.exe	85

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 3560 wrote to memory of 2064	3560	rundll32.exe	85
PID 3560 wrote to memory of 2064	3560	rundll32.exe	85
PID 3560 wrote to memory of 2064	3560	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\avsplugin\ds.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\avsplugin\ds.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 716
    3⤵
    - Program crash
    PID:2752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2064 -ip 2064
1⤵
PID:4488

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

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Downloads

memory/2064-0-0x0000000010000000-0x0000000010017000-memory.dmp

Filesize
92KB

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memory/2064-2-0x0000000010000000-0x0000000010017000-memory.dmp

Filesize
92KB

Download