e5e86b8f783358643f77fdb5556b006a53253313f4586655f96afcb08ccfe56f

Analysis

max time kernel
78s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/08/2024, 03:24

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General

Target

8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
Size

89KB
MD5

8d1e661d98f20dd483d0e0578fa10601
SHA1

812760a66560521dc48f712b0af046b6f9e270ef
SHA256

e5e86b8f783358643f77fdb5556b006a53253313f4586655f96afcb08ccfe56f
SHA512

572c09c6ae5551b8e49dc32af19f14e42ca74d591001f8ac5103dae781d65f5b7052ce45f88123e4258f1113db3917e823c370d465c2ebcd096e23d821569e28
SSDEEP

1536:lCI7bgk5TUVaRIZTAwP0Kuf/cAAYtW9oXTKuLMwnW3qvZRk+lRR9U6OX3KcNk:0I7Uk5TU8iz4Es0ofKEDk+T9UrC

Score

10^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = ",rundll32.exe C:\\Windows\\system32\\winsys16_070308.dll start"	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe

Drops file in System32 directory 10 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\AlxRes070308.exe	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\winsys32_070308.dll	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\winsys16_070308.dll	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\winsys32_070308.dll	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\scrsys16_070308.scr	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\scrsys16_070308.scr	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\winsys16_070308.dll	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\AlxRes070308.exe	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\scrsys070308.scr	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\scrsys070308.scr	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\mywinsys.ini	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.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	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31124583"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31124583"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "430198053"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1010945409"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31124583"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{67DD078C-585A-11EF-84CD-4A4A300BA5D9} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1013445648"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1010945409"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
Token: SeDebugPrivilege	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
Token: SeDebugPrivilege	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
Token: SeDebugPrivilege	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
Token: SeDebugPrivilege	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3828	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3828	iexplore.exe
3828	iexplore.exe
4088	IEXPLORE.EXE
4088	IEXPLORE.EXE
4088	IEXPLORE.EXE
4088	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 3828	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe	94
PID 3812 wrote to memory of 3828	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe	94
PID 3828 wrote to memory of 4088	3828	iexplore.exe	95
PID 3828 wrote to memory of 4088	3828	iexplore.exe	95
PID 3828 wrote to memory of 4088	3828	iexplore.exe	95
PID 3812 wrote to memory of 3828	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe	94
PID 3812 wrote to memory of 3936	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe	98
PID 3812 wrote to memory of 3936	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe	98
PID 3812 wrote to memory of 3936	3812	8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe	98

C:\Users\Admin\AppData\Local\Temp\8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8d1e661d98f20dd483d0e0578fa10601_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3812
- C:\program files\internet explorer\iexplore.exe
  "C:\program files\internet explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3828
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3828 CREDAT:17410 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:4088
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c c:\myDelm.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JACP9GNT\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\mywinsys.ini

Filesize
279B

MD5
0ac9d292fdd0452e5eae29450ad8f459

SHA1
dfe7e30099fe0826484a93c5f7e6888fd77637a7

SHA256
c1d217b5659547c4f6ee9bfdaa45ff2510f0ee985acaf2e148dba2c12b7b5846

SHA512
c5a156bd3a020c196f40f95a542b5c8e65e1db205cf8274f779c66948b176b9d286064feb639e6c6495d48f98e1958ed7c3768e1bf594dd39723c1443cc3ce16

Download Submit
\??\c:\myDelm.bat

Filesize
212B

MD5
cdd3ff04b9cc0993616b089bd47b6470

SHA1
a2c6462a2106c49a44eb6bf42760623d663cce91

SHA256
36380f4f506a4121925f60bcc77bbe97274102ca85be5058fdd2a344081567a1

SHA512
45ab12a5a02976498c5b7e085c332266cf00e215a44707276cd67aab00b982850e5263174ef3ab66b372ace0a04d64819da4c174581df2f9f9724837cc317f7d

Download Submit