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Analysis
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max time kernel
121s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
27/07/2024, 00:50
Behavioral task
behavioral1
Sample
766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe
Resource
win7-20240708-en
General
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Target
766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe
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Size
251KB
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MD5
766ff58f7654237b7175c847fdd8ff83
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SHA1
ee99c051d52d15a5f8cd98ca223d40dca3538e09
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SHA256
4e1c3e1b5570dbbe0854634617be48d8f5b51be003d6f19656fad33f146b638d
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SHA512
11ff585f82000719009d3e74876db673b871933260989ecda4090475addd5a38fb8413f9bbaf9a22dedd62711a9dae3f4ba846e92b90b8d01f223c601351ded1
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SSDEEP
6144:VqJpof5u+c+jJlfu63rDEopxMDCFIk3NX:twGjbfuYGmjJ
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2916 Mtyfya.exe -
resource yara_rule behavioral1/memory/1988-1-0x0000000000400000-0x0000000000441000-memory.dmp upx behavioral1/files/0x0008000000016dcf-11.dat upx behavioral1/memory/2916-13-0x0000000000400000-0x0000000000441000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\18RH6WMFH2 = "C:\\Windows\\Mtyfya.exe" Mtyfya.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe File opened for modification C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe File created C:\Windows\Mtyfya.exe 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe File opened for modification C:\Windows\Mtyfya.exe 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe -
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 Mtyfya.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Internet Explorer\Main Mtyfya.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe 2916 Mtyfya.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1988 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe 2916 Mtyfya.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1988 wrote to memory of 2916 1988 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe 30 PID 1988 wrote to memory of 2916 1988 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe 30 PID 1988 wrote to memory of 2916 1988 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe 30 PID 1988 wrote to memory of 2916 1988 766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\766ff58f7654237b7175c847fdd8ff83_JaffaCakes118.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Windows\Mtyfya.exeC:\Windows\Mtyfya.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:2916
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
251KB
MD5766ff58f7654237b7175c847fdd8ff83
SHA1ee99c051d52d15a5f8cd98ca223d40dca3538e09
SHA2564e1c3e1b5570dbbe0854634617be48d8f5b51be003d6f19656fad33f146b638d
SHA51211ff585f82000719009d3e74876db673b871933260989ecda4090475addd5a38fb8413f9bbaf9a22dedd62711a9dae3f4ba846e92b90b8d01f223c601351ded1
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Filesize
372B
MD532e7056128be92a104dddf5ffc1e2f8f
SHA15b49d767fe140dc93e454bb5e19badf1f6b9eb0a
SHA256eebe4f21285bdd3a45c27e079010bf40569d85bc9e83f22af3998a6844de1a6b
SHA51278f0f934f30426cbe55edeac4d9e05677980b4528411adde695fbc9f422571d45800288d4bb4eb68c0aab768bd516fcc4fbfde458370c05ef45aeb41f8ee924a