22867c89943eff315e5e811564e6d96a208134470e4e5adf0d46ba9a4f9ad3cd

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/06/2026, 03:58

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General

Target
Decache Exporter/bin/7z/Codecs/brotli/libbrotlidec.dll
Size 49KB
Sample260602-ejmn7adv4v
SHA256 22867c89943eff315e5e811564e6d96a208134470e4e5adf0d46ba9a4f9ad3cd
MD5 198affe102c5998980300fa307742f11
SHA1 854845c60ed8470836c435a7a1131a3d015de4a9
SHA512 5644c2647176285dbf8bbf4c9d37dd5169088104b5b0efa6116521d7736722bbfe62c9375a98e9e3872f2649ac3187911a0106cbc25d0ba1797aad285fedede6
SSDEEP 768:2Q1n9COlu6I3cY5487AekN5X4Sa0ValJ7diL1BFnbx0vuzd6+7fT/bnDvLXzf7jz:fn0x3cYFMRN5oSa0g0fJgMap
TLSH
T1EB337D41BB932CBADD5B03B452427F7F06BD4B025926C66FE1B4B9DEBE232137644148
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1500	5416	WerFault.exe	80

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 WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5648 wrote to memory of 5416	5648	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Decache Exporter\bin\7z\Codecs\brotli\libbrotlidec.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5648
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Decache Exporter\bin\7z\Codecs\brotli\libbrotlidec.dll",#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5416
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5416 -s 452
    3⤵
    - Program crash
    PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5416 -ip 5416
1⤵
PID:1124

Network

MITRE ATT&CK Enterprise v16

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/5416-0-0x0000000075120000-0x0000000075134000-memory.dmp

Download

memory/5416-1-0x00000000750F0000-0x0000000075119000-memory.dmp