f58d4545c6bba62b31d48395f93211f2c35f1c23b1f4c7ec99c00266189f77a9

Analysis

max time kernel
92s
max time network
95s
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 21:18

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General

Target

f58d4545c6bba62b31d48395f93211f2c35f1c23b1f4c7ec99c00266189f77a9N.dll
Size

203KB
MD5

c91d9f1dc2d13dc62fedfd13e97af610
SHA1

d476aff18870718fd2785f025b72ac0a45d9cb34
SHA256

f58d4545c6bba62b31d48395f93211f2c35f1c23b1f4c7ec99c00266189f77a9
SHA512

51632d7d790d8f537a9cfd1d388ae6ece5c79288b0cd3ef1e556b6f519e41831c85c235f458a0ca57f74cdb2760e09828bd827fcc429b466695f06072b60a0b6
SSDEEP

3072:aJ8IMILmCa3yx6oFEdgVXnF6C9Ugfxm32n7SpiMNZgJOSBOG:5kmCaiEoFEd+F3txm2SpiMNZgJZBn

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/4744-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4744-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4692	4744	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	4744	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 4744	1612	rundll32.exe	82
PID 1612 wrote to memory of 4744	1612	rundll32.exe	82
PID 1612 wrote to memory of 4744	1612	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f58d4545c6bba62b31d48395f93211f2c35f1c23b1f4c7ec99c00266189f77a9N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f58d4545c6bba62b31d48395f93211f2c35f1c23b1f4c7ec99c00266189f77a9N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4744
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 720
    3⤵
    - Program crash
    PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4744 -ip 4744
1⤵
PID:3952

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/4744-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4744-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download