fbb4487bd12e001fc231085fbdd90e90b4743c3ad465c9214cc29e5fe75d562f

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/09/2024, 07:24

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General

Target
1d5a407d537d54c83fc39973d26af0b0N.dll
Size 76KB
Sample240909-h8pfvszbpd
SHA256 fbb4487bd12e001fc231085fbdd90e90b4743c3ad465c9214cc29e5fe75d562f
MD5 1d5a407d537d54c83fc39973d26af0b0
SHA1 ee9e142ad84d232cd53274c254e15ddaadc862a9
SHA512 8109fb4ea67c67605d2aba7ced0eafb400bece8c333e54a610faf85d7025a7e5c4b535d3cbdd0d2314f272c669aabc06640915c8f24eb0e7b33232e0bd5a2def
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZCDUGY:c8y93KQjy7G55riF1cMo03qUGY
MD5 SHA1 SHA512 SSDEEP

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
behavioral2/memory/4800-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4800-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4296	4800	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	4800	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 4800	4620	rundll32.exe	83
PID 4620 wrote to memory of 4800	4620	rundll32.exe	83
PID 4620 wrote to memory of 4800	4620	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d5a407d537d54c83fc39973d26af0b0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d5a407d537d54c83fc39973d26af0b0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 716
    3⤵
    - Program crash
    PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4800 -ip 4800
1⤵
PID:368

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

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Downloads

memory/4800-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4800-2-0x0000000010000000-0x0000000010030000-memory.dmp