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Analysis
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max time kernel
36s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
14/07/2024, 10:25
Behavioral task
behavioral1
Sample
45695329649f94b72b296d683939fccc_JaffaCakes118.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
45695329649f94b72b296d683939fccc_JaffaCakes118.exe
Resource
win10v2004-20240709-en
General
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Target
45695329649f94b72b296d683939fccc_JaffaCakes118.exe
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Size
197KB
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MD5
45695329649f94b72b296d683939fccc
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SHA1
1abaecdae58a4ef4812e5a58cc9f9a8adc2d088a
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SHA256
24b5d2d5fe7c1fcbb93b2a28001b02297287beb39bdeb90dcc3e3900dc21277b
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SHA512
c3cb8ff45ac86f9e7ccee992ada46af2b5358c93eb97c7c67f8d9d0de353a219dea33bd3243198ba1b46e5d2f519b0b53a237a52d8ab19f2af8b0c6ded54fe43
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SSDEEP
3072:UF2SRGOYiDEah5u2606Tqa4esT/TCJCKEOcP5/9iIttyB2BSz:UF22ojRnqa3DkvOIiwR0
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1924 Rmejea.exe -
resource yara_rule behavioral1/memory/1908-0-0x0000000000400000-0x000000000046C000-memory.dmp upx behavioral1/memory/1908-11-0x0000000000590000-0x00000000005FC000-memory.dmp upx behavioral1/files/0x0009000000013a35-12.dat upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\TJHTHX1O7X = "C:\\Windows\\Rmejea.exe" Rmejea.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job 45695329649f94b72b296d683939fccc_JaffaCakes118.exe File created C:\Windows\Rmejea.exe 45695329649f94b72b296d683939fccc_JaffaCakes118.exe File opened for modification C:\Windows\Rmejea.exe 45695329649f94b72b296d683939fccc_JaffaCakes118.exe File created C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job 45695329649f94b72b296d683939fccc_JaffaCakes118.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main Rmejea.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe 1924 Rmejea.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeRestorePrivilege 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe Token: SeBackupPrivilege 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 1924 Rmejea.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29 PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29 PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29 PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29 PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29 PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29 PID 1908 wrote to memory of 1924 1908 45695329649f94b72b296d683939fccc_JaffaCakes118.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\45695329649f94b72b296d683939fccc_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\45695329649f94b72b296d683939fccc_JaffaCakes118.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Windows\Rmejea.exeC:\Windows\Rmejea.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1924
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
197KB
MD545695329649f94b72b296d683939fccc
SHA11abaecdae58a4ef4812e5a58cc9f9a8adc2d088a
SHA25624b5d2d5fe7c1fcbb93b2a28001b02297287beb39bdeb90dcc3e3900dc21277b
SHA512c3cb8ff45ac86f9e7ccee992ada46af2b5358c93eb97c7c67f8d9d0de353a219dea33bd3243198ba1b46e5d2f519b0b53a237a52d8ab19f2af8b0c6ded54fe43
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Filesize
372B
MD53b15f899225dc9af9f6182ad62157d28
SHA1dbd20f0f40679461603c928ca5b1b66ee1ff9afd
SHA256b5de190647313140e841674619fe6e833049009f5a24ded611113acf18355196
SHA512d6a560681b0c23732f55af7060ba170ad3fb1650aa6f4796855c733d377c6e574ca4250119fddd88aa51931bafe427cb8b6768719055c4de79ae095946c523f0