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Analysis
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max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
21/09/2024, 16:07
Static task
static1
Behavioral task
behavioral1
Sample
f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe
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Size
384KB
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MD5
f026c151c982d18140c4d7c6dccf5566
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SHA1
3d8dcf38c57980a224a7b82121f85c67bb2257fe
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SHA256
0674c95248258ac80daf7ef39d1cf76c204bf2fbabc1386e6fe93b90d5eabc67
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SHA512
0344d0b128530f6857167747ad4ce2b585c8191bfa03807896984933a41d615b814a4391241020506cd54cfbe5e380c91c676ce4602750e196ba5d57051fb995
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SSDEEP
6144:qzZwJN7oHfdrekyFUEJHJmYgZktfWC4K/GziIIVX8aKrlcxmlF:6iJZ2fdrZjsUWwJiX8aOlx
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1220 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2788 yfiv.exe -
Loads dropped DLL 2 IoCs
pid Process 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\{F5C6EAE8-1B61-AD4F-A81D-915899A2B245} = "C:\\Users\\Admin\\AppData\\Roaming\\Zyka\\yfiv.exe" yfiv.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2324 set thread context of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yfiv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Privacy f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe Set value (int) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0" f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 31 IoCs
pid Process 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe 2788 yfiv.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 2788 yfiv.exe -
Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 2324 wrote to memory of 2788 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 30 PID 2324 wrote to memory of 2788 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 30 PID 2324 wrote to memory of 2788 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 30 PID 2324 wrote to memory of 2788 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 30 PID 2788 wrote to memory of 1132 2788 yfiv.exe 19 PID 2788 wrote to memory of 1132 2788 yfiv.exe 19 PID 2788 wrote to memory of 1132 2788 yfiv.exe 19 PID 2788 wrote to memory of 1132 2788 yfiv.exe 19 PID 2788 wrote to memory of 1132 2788 yfiv.exe 19 PID 2788 wrote to memory of 1180 2788 yfiv.exe 20 PID 2788 wrote to memory of 1180 2788 yfiv.exe 20 PID 2788 wrote to memory of 1180 2788 yfiv.exe 20 PID 2788 wrote to memory of 1180 2788 yfiv.exe 20 PID 2788 wrote to memory of 1180 2788 yfiv.exe 20 PID 2788 wrote to memory of 1260 2788 yfiv.exe 21 PID 2788 wrote to memory of 1260 2788 yfiv.exe 21 PID 2788 wrote to memory of 1260 2788 yfiv.exe 21 PID 2788 wrote to memory of 1260 2788 yfiv.exe 21 PID 2788 wrote to memory of 1260 2788 yfiv.exe 21 PID 2788 wrote to memory of 1636 2788 yfiv.exe 25 PID 2788 wrote to memory of 1636 2788 yfiv.exe 25 PID 2788 wrote to memory of 1636 2788 yfiv.exe 25 PID 2788 wrote to memory of 1636 2788 yfiv.exe 25 PID 2788 wrote to memory of 1636 2788 yfiv.exe 25 PID 2788 wrote to memory of 2324 2788 yfiv.exe 29 PID 2788 wrote to memory of 2324 2788 yfiv.exe 29 PID 2788 wrote to memory of 2324 2788 yfiv.exe 29 PID 2788 wrote to memory of 2324 2788 yfiv.exe 29 PID 2788 wrote to memory of 2324 2788 yfiv.exe 29 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31 PID 2324 wrote to memory of 1220 2324 f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe 31
Processes
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵PID:1132
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1180
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1260
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C:\Users\Admin\AppData\Local\Temp\f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f026c151c982d18140c4d7c6dccf5566_JaffaCakes118.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2324 -
C:\Users\Admin\AppData\Roaming\Zyka\yfiv.exe"C:\Users\Admin\AppData\Roaming\Zyka\yfiv.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2788
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp19342d5c.bat"3⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:1220
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:1636
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
271B
MD503887fb00b1ecee9a4cb6fb088da0af0
SHA102bc32b71dcf57eab0fa4d34683d1d3f57c8f698
SHA256abc8b2c65f7bc1b21ce62c90f1a013140329060e7aa935782f8e4ea81738e7cb
SHA5121901ba9bcc5d8412c7251272b5d88244dce9d792f16172219e373db33750722da3abac988a4434c325f97823d554ff652470b10a0ffa82d3e5c81b7dac36883b
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Filesize
384KB
MD534e3be7daa74cd25743903609cb6a7fe
SHA13f03839324e6dccc8ce8d9258bbf61f667f6c6e6
SHA25653e05397035328da47f0fb97acad33df76ec6ab582df2f3bb132b1195474d604
SHA5124e6c90605394ebf48e44d14be266ca68577d9515fe818be99edb0af6fb180010f1f6f4f04b817ce38d6f6e8578fa68684c35b729dc2068ec5e3c35889ca6796b