21091fe6e7c207c1068c6e7b62ce1da18ec5f09d475cc4a397fe2236355db65c

Analysis

max time kernel
2s
max time network
4s
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, 22:23

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Reason

Machine shutdown

General

Target
jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Size 673KB
Sample261013-2ba2ract2y
SHA256 21091fe6e7c207c1068c6e7b62ce1da18ec5f09d475cc4a397fe2236355db65c
MD5 0d1b19a0bdd1ded153b7d7861e57e79e
SHA1 a44b3cc3fd64f1f0e00fb3f14b91988bc24f77d9
SHA512 a688587e43a64e842c26fbfe3dbc503ece298be33c7711ead87ed13e401b77766a5c8a0c950590714818071dd45ec748c275ae44190678a5810ff034eb88496d
SSDEEP 12288:DyT+J+GU0IsYMNobXaundbYhAizbPPyZ7FUEqLTQAj/p:qbG4lndc2izbHuBUrLTQADp
TLSH
T1B3E4F0203AC1C4F7D51345B2C8C9E6F891A7FEB15B3193177B8427AEAF3D186DA14262
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

bootkit defense_evasion discovery persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1100	S7JdZrvW.exe
4928	telm.exe
5008	tell.exe

Loads dropped DLL 1 IoCs

pid	Process
1928	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Trulow = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\cleAul.dll\",Startup"	rundll32.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\physicaldrive0	tell.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	tell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	S7JdZrvW.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	telm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1100	S7JdZrvW.exe
1100	S7JdZrvW.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5008	tell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1100	S7JdZrvW.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 1100	432	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	87
PID 432 wrote to memory of 5008	432	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	88
PID 432 wrote to memory of 4928	432	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 432 wrote to memory of 3144	432	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	90
PID 4928 wrote to memory of 1928	4928	telm.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432
- C:\Users\Admin\S7JdZrvW.exe
  S7JdZrvW.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1100
- C:\Users\Admin\tell.exe
  tell.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5008
- C:\Users\Admin\telm.exe
  telm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4928
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\cleAul.dll",Startup
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:1928
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del jaffacakes118_HEUR.Trojan.Win32.Generic.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3144

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

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

cleAul.dll

Path C:\Users\Admin\AppData\Local\cleAul.dll
Size 111KB
SHA256 61112142c51272ef736d5c91e44092922491b7419a7e2464500662e11b4cdb4b
MD5 9fcb2d9684568a34ee75f15351f22f20
SHA1 e1879c36b04116c66d2b582a00db283c3638d40a
SHA512 4e2a553afef79e62595d100fac521f0a344496ef7bea8c9dfb63ada23baa8cf4f5f0dfde08fb41bb0ed6110215b6da927885354b3ed9aaa5fd6eb16f2e7682ec
SSDEEP 3072:fXCZ8oTrHnJEh7MoLW7Fykf3r0rNR7ZlYereOVH5eTyVfCGM:vCio/JEh7MoLMFSZftDvV
TLSH
T102B3CF11E58D5F8EF1ED293D80572713892C799AE731C66F1FA3A4D93CB9B406A3024B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

S7JdZrvW.exe

Path C:\Users\Admin\S7JdZrvW.exe
Size 132KB
SHA256 8a44ceabe292392a0b7d591e1ba2469efc12d1a43d803446b5c53f5e61ef8022
MD5 9ccf581532b7dcdbf5f93deb48446e1c
SHA1 5b87d781c245c3535428e5b06093d841c1aed7e2
SHA512 6d2c439da4d42777ca83c520921e8db1429b73424d306a7bea656c39f927b855a16712dc990142e76edb63540bedf2b0aa858e5c6b49c6fa26f1c802ab5fb281
SSDEEP 3072:E3k/NPrdVfWM8RM/8KmwBErXXFefQmD8ampjDdepV:T/5X8/KmwBEjXFeos8aCVen
TLSH
T130D3942A76A0F13ACA25C7F42D5A47B0906DAD3461D6AD03F3C61B1677B2DA7D360703
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

tell.exe

Path C:\Users\Admin\tell.exe
Size 173KB
SHA256 b1ca21eafb091c91112d1b76924c40167c40c8dadc1f2fc2b6a09df52ed67116
MD5 4885e08516369ff4d1e6f11f90dc3679
SHA1 0d83dcb1f4c1b1cad08422a619244dacaa652a16
SHA512 adcf2520c7d862966454263ff7e26b56f3a3d775aef0acf9da441cb289314ed91684591e26c7fcd3b00625f5dd431472fba7a9c312dc6ba8caecd8ce234b7915
SSDEEP 3072:Eo+h3nZxOnUuJxZXTzMHrfZyhbM6xjR4ia0UrRFCGNnG1t1Sm5ex58cC15ICtp5w:EHhZxyUuJxZX3AEbpuZ0QnGhSN5jC/Ib
TLSH
T18404011955529487F0876EF868DAFBC13EEC5E43F486E1DFF3A8634C60858E808D9632
MD5 SHA1 SHA512 SSDEEP TLSH

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telm.exe

Path C:\Users\Admin\telm.exe
Size 111KB
SHA256 a9ffabf03b96026a5f12b42aca3154a93726ac456160124a2e63cdfb7ed92fb0
MD5 6fed9c54bfb27b58a811750b17a1d4c3
SHA1 09a33382d8997a9f8b1f88c12b6538840c3d2874
SHA512 25b5f41aba74d1102a021317d36bf9eb361d143887e6afec389dfb83cec474b05533dcafd84df4ab6fc24fd26e73cae0fc5d9befc8cc71f7bb85aae8230c8edc
SSDEEP 3072:/XCZ8oTrHnJEh7MoLW7Fykf3r0rNR7ZlYereOVH5eTyVfCGM:PCio/JEh7MoLMFSZftDvV
TLSH
T15FB3CF11E58D5F8EF1ED293D80572713892C799AE731C66F1FA3A4D93CB9B406A3024B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

yeatut.exe

Path C:\Users\Admin\yeatut.exe
Size 132KB
SHA256 88e3f9104589dac6860d115e147089732e588d0febc8989f94c0811bbd974bd7
MD5 d2823fcf20cc1c71d32f1833898aa236
SHA1 cc629a8b7bbf198c7580a3acc617014d917aa3aa
SHA512 8e0c07006ad2b9933c14cd1ec4b2a8f9d19f7ef808684732e60e8ee0632b4c1e25100356a9df7a46c352a13c93d962a81e8a1d9465ef4e7bb6e668179854b267
SSDEEP 3072:E3k/GPrdVfWM8RM/8KmwBErXXFefQmD8ampjf0eEIZ:T/SX8/KmwBEjXFeos8aC4e9
TLSH
T1B6D3942A76A0F23ACA25C7F42D5A47B0906DAD3421D6AD13F3C61B1677B2DA7D360703
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1928-27-0x0000000002AF0000-0x0000000002B00000-memory.dmp

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memory/1928-26-0x0000000002AF0000-0x0000000002B00000-memory.dmp

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memory/1928-25-0x0000000010000000-0x000000001001F000-memory.dmp

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memory/4928-28-0x0000000010000000-0x000000001001F000-memory.dmp

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memory/4928-18-0x00000000005B0000-0x00000000005C0000-memory.dmp

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memory/4928-17-0x00000000005B0000-0x00000000005C0000-memory.dmp

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memory/4928-15-0x0000000010000000-0x000000001001F000-memory.dmp

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memory/5008-29-0x0000000001E00000-0x0000000001E57000-memory.dmp

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memory/5008-16-0x0000000000400000-0x0000000000457000-memory.dmp

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads