03b3cc8da6151be15d572e737cf7193ae8226937118a8b5e7bc87381c4d6d766

Analysis

max time kernel
148s
max time network
141s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/10/2026, 20:01

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General

Target
jaffacakes118_Trojan-PSW.Win32.Kykymber.dnca.dll
Size 66KB
Sample261012-yrpnasee84
SHA256 03b3cc8da6151be15d572e737cf7193ae8226937118a8b5e7bc87381c4d6d766
MD5 65a93bc768ced8e0731d5d02129066c2
SHA1 fb4c22e92d1a69958703048cf7268e2f70af3814
SHA512 95511dc18c47585c931c465f491635928f4eb1831ecb12b1dac85a99d1e264f46a10ef4ee1056a5cee6222c9abbdd02ee736e6bae6e0161f36ee544d6a3ea7f0
SSDEEP 1536:1zExMwCGQ2j7XKVTolacoI9vN5oM1KyxzyfpribZ4lf6LEScx80:1I+wCGvvaTolaa9vCkyfwbZ4YL/0
TLSH
T17A63BFE5DA2776B9E76FCA3F89FB38288E0433F3790395A75039245415A61A2DF0240E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4152-0-0x0000000010000000-0x000000001000E000-memory.dmp	upx

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 4396 wrote to memory of 4152	4396	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Kykymber.dnca.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Kykymber.dnca.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4152

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/4152-0-0x0000000010000000-0x000000001000E000-memory.dmp

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