41b5355c43f4494fbbbfea3b66970aa514a0a0b42654a1dc4e0e97f59f432dba

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2025 14:29

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General

Target

41b5355c43f4494fbbbfea3b66970aa514a0a0b42654a1dc4e0e97f59f432dbaN.dll
Size

76KB
MD5

ed23ffacd89617d0b15b9bca2d5e4de0
SHA1

be962dd0e523cbe4ad12f3f20df657fcdc89d7d4
SHA256

41b5355c43f4494fbbbfea3b66970aa514a0a0b42654a1dc4e0e97f59f432dba
SHA512

d8bb6d194140b5394bc34ba2999c7a9ea17cb87923c25e6d6b24ef3f365e37460bb67794e1be41e66d4d2053e8a38b93e2867410bdde63e1fe188df092056140
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZwWkBK:c8y93KQjy7G55riF1cMo03yfQ

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/3980-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3980-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3556	3980	WerFault.exe	82

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	3980	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 3980	3680	rundll32.exe	82
PID 3680 wrote to memory of 3980	3680	rundll32.exe	82
PID 3680 wrote to memory of 3980	3680	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\41b5355c43f4494fbbbfea3b66970aa514a0a0b42654a1dc4e0e97f59f432dbaN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\41b5355c43f4494fbbbfea3b66970aa514a0a0b42654a1dc4e0e97f59f432dbaN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 700
    3⤵
    - Program crash
    PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3980 -ip 3980
1⤵
PID:2268

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/3980-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/3980-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download