2b5884ce35c0d37aef1faef9e9230130d6e1cec2c5099ca7de3e08c01c16d817

Analysis

max time kernel
95s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 05:57

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General

Target

2b5884ce35c0d37aef1faef9e9230130d6e1cec2c5099ca7de3e08c01c16d817N.dll
Size

76KB
MD5

11f19d70a7cb1522e1fed32e71eb1ca0
SHA1

9775509e496a77a803b3871d951e75a984389399
SHA256

2b5884ce35c0d37aef1faef9e9230130d6e1cec2c5099ca7de3e08c01c16d817
SHA512

5273ab4c030958a69c86705c9b72901dc571cf6e866b347a7cac7f71b5992c34e3af32fa9f5f9f56d4331c4ca766d4095c85df03a7050542117c9fb575ae7e9b
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZX48T:c8y93KQjy7G55riF1cMo03148T

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/4500-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4500-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4044	4500	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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4500	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 4500	4824	rundll32.exe	85
PID 4824 wrote to memory of 4500	4824	rundll32.exe	85
PID 4824 wrote to memory of 4500	4824	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b5884ce35c0d37aef1faef9e9230130d6e1cec2c5099ca7de3e08c01c16d817N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b5884ce35c0d37aef1faef9e9230130d6e1cec2c5099ca7de3e08c01c16d817N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4500
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4500 -s 704
    3⤵
    - Program crash
    PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4500 -ip 4500
1⤵
PID:2964

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/4500-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4500-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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