84663b033f080f808d3c3ab68d9fdf5a2d109b8c713c824b1ee5af4d7ca06b5b

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 14:32

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General

Target

84663b033f080f808d3c3ab68d9fdf5a2d109b8c713c824b1ee5af4d7ca06b5bN.dll
Size

76KB
MD5

9be962a410d4fe0e2a5b62abc54513d0
SHA1

cd0abe1bee3aff38ec56292ed666a297daf327bc
SHA256

84663b033f080f808d3c3ab68d9fdf5a2d109b8c713c824b1ee5af4d7ca06b5b
SHA512

a36901fe6f29905cc804f435f084d75601f670beb126fc734079915236921e14982dbb2b768e4d97caccdfc16487b08ba0f66a6c3cc7f762586e4e38e32d3463
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZPYdt90Z:c8y93KQjy7G55riF1cMo03Ct90Z

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 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2300-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2300-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2300-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2300-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2300-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2588	2300	WerFault.exe	31

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	2300	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 1720 wrote to memory of 2300	1720	rundll32.exe	31
PID 2300 wrote to memory of 2588	2300	rundll32.exe	32
PID 2300 wrote to memory of 2588	2300	rundll32.exe	32
PID 2300 wrote to memory of 2588	2300	rundll32.exe	32
PID 2300 wrote to memory of 2588	2300	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\84663b033f080f808d3c3ab68d9fdf5a2d109b8c713c824b1ee5af4d7ca06b5bN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\84663b033f080f808d3c3ab68d9fdf5a2d109b8c713c824b1ee5af4d7ca06b5bN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 276
    3⤵
    - Program crash
    PID:2588

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

Replay Monitor

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Downloads

memory/2300-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2300-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2300-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2300-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2300-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download