Analysis
-
max time kernel
142s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
03/01/2025, 05:08
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe
Resource
win10v2004-20241007-en
General
-
Target
JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe
-
Size
599KB
-
MD5
6a699195dcc432ba04a55d3c57cfb490
-
SHA1
6856d17223f34e2cc94a92f398edf8b9f178a9b4
-
SHA256
bf2911d8d58136b627307249a4f836eded570d086fd0f670990de5161bdc83f2
-
SHA512
bb7147ba4ffd4e952c55adf8844da0c609a620a029f4a3ebfbe16235c3b8fa07cd5de7ccf12783fe9aae5766c0f37e31fdfdd8829070689d00ce2f1e176f5739
-
SSDEEP
12288:2VOBVTxcqfx0G2klcB4/iq7Aoo1RnA8y+rrlbOjkcxWnfxnX/:2OBVlh0Vic6x7UphMBcpnX/
Malware Config
Signatures
-
Expiro family
-
Expiro payload 2 IoCs
resource yara_rule behavioral1/memory/3060-0-0x0000000000400000-0x0000000000656000-memory.dmp family_expiro1 behavioral1/memory/3060-7-0x0000000000400000-0x0000000000656000-memory.dmp family_expiro1 -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosdate svchost.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\aaaaaaaa = "C:\\Windows\\System32\\aaaaaaaa.exe" JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\aaaaaaaa = "C:\\Users\\Admin\\aaaaaaaa.exe" JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\aaaaaaaa.exe JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3060 set thread context of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 -
System Location Discovery: System Language Discovery 1 TTPs 2 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 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier svchost.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosDate svchost.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30 PID 3060 wrote to memory of 2060 3060 JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a699195dcc432ba04a55d3c57cfb490.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\System32\svchost.exe2⤵
- Checks BIOS information in registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
PID:2060
-