41727a81d71f6df30bcc3537e5fc4f61155b413f0375c467664aa8b78a97ef4b

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2024, 20:43

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General

Target
41727a81d71f6df30bcc3537e5fc4f61155b413f0375c467664aa8b78a97ef4bN.dll
Size 76KB
Sample241109-zhktessbkh
SHA256 41727a81d71f6df30bcc3537e5fc4f61155b413f0375c467664aa8b78a97ef4b
MD5 75d0dc46df1a6c3172e09d5f08523c20
SHA1 8c0bbd47a0da503b84a876b61c8017c103e6e20f
SHA512 7d4ac04b2951545c005d75c657d38c64d49a54535fad0b5b236cfa50bde9d72893a5bf2e70de219f1b3f9fa6e1a2296309106583297c72633079d67d52209294
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z/n7/f8v:c8y93KQjy7G55riF1cMo03dnzkv
MD5 SHA1 SHA512 SSDEEP

Score

5^/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
behavioral2/memory/4868-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4868-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4528	4868	WerFault.exe	83

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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4868	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 4868	2432	rundll32.exe	83
PID 2432 wrote to memory of 4868	2432	rundll32.exe	83
PID 2432 wrote to memory of 4868	2432	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\41727a81d71f6df30bcc3537e5fc4f61155b413f0375c467664aa8b78a97ef4bN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\41727a81d71f6df30bcc3537e5fc4f61155b413f0375c467664aa8b78a97ef4bN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4868
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 704
    3⤵
    - Program crash
    PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4868 -ip 4868
1⤵
PID:2376

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/4868-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4868-2-0x0000000010000000-0x0000000010030000-memory.dmp