19b428109963a2bf649194d2cfed25768a386bc012cc94ba237ee27d825cfb8a

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2024, 12:33

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General

Target
868fb55e3c7466141799852886fd0080N.dll
Size 76KB
Sample240816-prhqbavcka
SHA256 19b428109963a2bf649194d2cfed25768a386bc012cc94ba237ee27d825cfb8a
MD5 868fb55e3c7466141799852886fd0080
SHA1 f17e2adf09240da370f6f4ec5d06b429e4388cd8
SHA512 96fd3d2fd8f550c75225c98ebc0a2f2eee22e63e92ebce90548ddcfbd13f1b90f9c7e4a6d600fcb6ea056982665660f77cbbb5d3ec37e000e603db1802b29894
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZJBfBgW0BR:c8y93KQjy7G55riF1cMo03fs
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4804-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4804-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4440	4804	WerFault.exe	84

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	4804	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 4804	436	rundll32.exe	84
PID 436 wrote to memory of 4804	436	rundll32.exe	84
PID 436 wrote to memory of 4804	436	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\868fb55e3c7466141799852886fd0080N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:436
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\868fb55e3c7466141799852886fd0080N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4804
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 716
    3⤵
    - Program crash
    PID:4440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4804 -ip 4804
1⤵
PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/4804-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4804-1-0x0000000010000000-0x0000000010030000-memory.dmp