04f9bf5aa82d7bd7156cdc83b45b827870da2cee32bd166ce10d02ce92298b4d

Analysis

max time kernel
149s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
06/10/2026, 16:55

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General

Target
jaffacakes118_Trojan-PSW.Win32.Kykymber.dnco.dll
Size 75KB
Sample261006-ve8nvsff49
SHA256 04f9bf5aa82d7bd7156cdc83b45b827870da2cee32bd166ce10d02ce92298b4d
MD5 24d4f51e6183c6c4f7a47b6fe2a55ae1
SHA1 46a3041f2ab1e28fa611b9594b94b3e11dc43710
SHA512 a5c55d2e11ce9031d4c2461ffc532c1e03f7f50ae7fd8034d1a9bf2667de7c9b32d40fdc13be70d7d0694de7422e5b93d100f2da933d0d52fee18b26105c0833
SSDEEP 1536:Bm1NGJVG1k9CjTOBYDG77Ga/rOvURZI93xqU8E5w1dDy7PBxQz:kX0VqtOB2G7HOvUY93xVDed+7PXQz
TLSH
T13873BFD5863A6278D36FCE7B8AF67D28C62433B3B953E68B043875850576191BF0211E
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
behavioral1/memory/4572-0-0x0000000010000000-0x0000000010013000-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 2968 wrote to memory of 4572	2968	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Kykymber.dnco.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-PSW.Win32.Kykymber.dnco.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4572

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/4572-0-0x0000000010000000-0x0000000010013000-memory.dmp

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