499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/09/2026, 11:20

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General

Target
jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe
Size 386KB
Sample260930-nfv1ts1scz
SHA256 499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba
MD5 1c4733d544a251b5fab9c7b1534ae9bf
SHA1 7e84f1d812400b57f0650ac86a476718d785b8ba
SHA512 17d77362473896a7e15339fdf5fb26f369d95eb84aeb3e34f07a5a729746687a64dd9ee421dbff14f90bc19b82af5aeb785711d1e76857c7778c0ac9d1806960
SSDEEP 6144:J8YKARyple8t7yeig8BvUnytWJTFxsOrWGgWTTOG5oa4Ocszas59sM3GTBi:5KARyple89GBcnIQTFd6GhKsOYsM3GT
TLSH
T16B848D22F6C14476D0625E78AC2AE77D993EBF202D38654BB7E81E0D4E7D3C168183D6
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

discovery execution persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\WinUpdate\Parameters\ServiceDll = "C:\\Windows\\system32\\\\yuese.dll"	jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe

Loads dropped DLL 2 IoCs

pid	Process
1084	svchost.exe
1084	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\yuese.dll	jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe
File created	C:\Windows\SysWOW64\System64.dat	jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe
File created	C:\Windows\SysWOW64\KMe.bat	jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3780	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 3780	2948	jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_499790c4dea70060c05b59fe3e9e038fe9e0e3172cde4ac9ea629813535f46ba.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\system32\KMe.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:3780

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netservice
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1084

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netservice
1⤵
PID:4732

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:5220

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

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

KMe.bat

Path C:\Windows\SysWOW64\KMe.bat
Size 132B
SHA256 d27f96929ccff2f0235963652e35b7207e424b4e6db4546f459707910345ac17
MD5 2cc329450c370e143b2cb193bb7ca965
SHA1 2004e751a64179b292d604db709edb28ca55f2f8
SHA512 a31bae92944327413b7e861120efc58327fc23eba29e7eecac242e1991312508f922399d7fa5d1ab5586ebda52473635f115aa7e7cc3fecadd785c649e1f04fc
TLSH
T12DC02B08414944D50800C01F23261E9F60AC090527827BC80102CD8B2091CC6BC78100
MD5 SHA1 SHA512 TLSH

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System64.dat

Path C:\Windows\SysWOW64\System64.dat
Size 73B
SHA256 82dcb73cdeef994d127c79835dd7a6d1c6005c0b520672bb92965ba7e3b92a83
MD5 598a80a935371cbec6ad3da31e3753e4
SHA1 92ec8706efd854ef508bf0acdba9490997fadc85
SHA512 3cf9411793caf6bbe7dd80017cd565da4e26709e0586f3e92618564b0c6b4f7fa768e7287dc5876ba2a406434538d73b4a1315d0dee8752415d295a6befaeaec
TLSH
T101A0020EB8306F891DE1BC1A1D47A016F7C0B4B159A8C12391009FD6E71F6F980D4FA2
MD5 SHA1 SHA512 TLSH

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yuese.dll

Path \??\c:\windows\SysWOW64\yuese.dll
Size 289KB
SHA256 854abeb5233db886e7273b824608dd6d8de3800e4041492439876b8a2be058c1
MD5 68f372e7ce8409489291abfb2ab23cb2
SHA1 d01d4c8743043a2aa180b066d7cf3e00fccbf377
SHA512 2a2474923c85c9b36889b65113cafd322131829cdf4067a81b35b602dfc0076f6237685694592016453312c031b13f87b78b24cbe5d6bc8f19e5b773e00da179
SSDEEP 6144:qyeig8BvUnytWJTFxsOrWGgWTTOG5oa4Ocszas59sM3GTBi:qGBcnIQTFd6GhKsOYsM3GT
TLSH
T1A8549D21F7C14476D0525E349C2AE77AD93EBF202D78654BB7E81E0D4E7E2C269283D2
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1084-9-0x0000000002280000-0x00000000022CE000-memory.dmp

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memory/1084-12-0x0000000002280000-0x00000000022CE000-memory.dmp

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memory/1084-14-0x0000000002280000-0x00000000022CE000-memory.dmp

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memory/1084-21-0x0000000002280000-0x00000000022CE000-memory.dmp

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memory/1084-23-0x0000000002280000-0x00000000022CE000-memory.dmp

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memory/2948-6-0x0000000000400000-0x0000000000467000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads