321ede409b9fb5de178f473f9c30a175fe3e7e6a038de825c6bca44c796391a1

Analysis

max time kernel
149s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
13/10/2026, 21:52

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General

Target
jaffacakes118_HEUR.Trojan.Win32.Generic.dll
Size 236KB
Sample261013-1rf29styay
SHA256 321ede409b9fb5de178f473f9c30a175fe3e7e6a038de825c6bca44c796391a1
MD5 0711f7b25f6f48f9cbeedc358d48b8fe
SHA1 777a2c3b989ab2e12f26b3c9cfc8d13e20722676
SHA512 d6bdad8a1244d44d3975e63d273eb1b8786595d9047ac94085768408545fa4858bc661d539927db308bae139c545a3dac72826b29db0f46232e12ab97537c554
SSDEEP 1536:OpXh9PIep8NPkrB0+KH5bHnIQhqRh2HgB1SgXSHd5lfSw62k/G0G+owkRsUK6:+hdLp2Mrc5bH1SIgB+HXgwHhwkBb
TLSH
T13234B003BA68C034E15445B85C7A7B73D9BE7900079A52E7C3D8DAE4DDF4A606A0B72F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\lgdqmksmw = "{1eb2c2ea-963a-eb8f-a74b-963a4a6285f7}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1212	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ytqdzxfzj.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\ytqdzxfzj.dll	rundll32.exe
File created	C:\Windows\SysWOW64\gbylhfnhr.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\gbylhfnhr.dll	rundll32.exe

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1eb2c2ea-963a-eb8f-a74b-963a4a6285f7}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1eb2c2ea-963a-eb8f-a74b-963a4a6285f7}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1eb2c2ea-963a-eb8f-a74b-963a4a6285f7}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1eb2c2ea-963a-eb8f-a74b-963a4a6285f7}\InprocServer32\ = "C:\\Windows\\SysWow64\\gbylhfnhr.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1eb2c2ea-963a-eb8f-a74b-963a4a6285f7}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1212	rundll32.exe
1212	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1212	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1212	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 1212	4920	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1212

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

ytqdzxfzj.dll

Path C:\Windows\SysWOW64\ytqdzxfzj.dll
Size 478KB
SHA256 768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774
MD5 e99416267b61f52fa5ab994019efd359
SHA1 86d31eae707db7fe51d2556394fcf0e8e9f6b0fd
SHA512 0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae
SSDEEP 12288:HIrZjxkFh7p/y4W0fPcdZ7cae7J/XoWwsNJ6Ir:HIrZjxw9y4WSPucaeFXoWwsNJ6Ir
TLSH
T119A47C33F69085EAD5B32170115EB7366B6EF8740F5085C7AA925BBE78649C09F3830B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1212-0-0x0000000000436000-0x0000000000438000-memory.dmp

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memory/1212-7-0x0000000000400000-0x0000000000444000-memory.dmp

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memory/1212-8-0x0000000000400000-0x0000000000444000-memory.dmp

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memory/1212-12-0x0000000000400000-0x0000000000444000-memory.dmp

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