858c1fe22a7d73b333be36bc1782cbedbf42c51fab1770b342988e741fcf9119

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2025, 04:28

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General

Target

858c1fe22a7d73b333be36bc1782cbedbf42c51fab1770b342988e741fcf9119N.dll
Size

76KB
MD5

9d1d58ab32d8afa6734a8186ac7f05f0
SHA1

362c541c9759feb7434a982c684263ca832de32e
SHA256

858c1fe22a7d73b333be36bc1782cbedbf42c51fab1770b342988e741fcf9119
SHA512

2c9deeb1b3201cadf0f496ce5f73db2d8f865c695f1c1313bd9c4fe7a54acad209d2f7a0fcbbe6bdb0f138ce81a69c78129a448c8f28eac8f5bf30c21032a299
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZyG9Mc0d:c8y93KQjy7G55riF1cMo034c0d

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/2100-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2100-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1856	2100	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	2100	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 2100	3240	rundll32.exe	82
PID 3240 wrote to memory of 2100	3240	rundll32.exe	82
PID 3240 wrote to memory of 2100	3240	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\858c1fe22a7d73b333be36bc1782cbedbf42c51fab1770b342988e741fcf9119N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3240
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\858c1fe22a7d73b333be36bc1782cbedbf42c51fab1770b342988e741fcf9119N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 712
    3⤵
    - Program crash
    PID:1856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2100 -ip 2100
1⤵
PID:2292

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

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Downloads

memory/2100-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/2100-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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