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Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
20/07/2024, 07:49
Behavioral task
behavioral1
Sample
5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe
Resource
win10v2004-20240709-en
General
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Target
5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe
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Size
212KB
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MD5
5fa1e8b903222be7c74edce61dfa0435
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SHA1
0f4d80e03f5f17c6aa0880ea3c22edee48ee7298
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SHA256
556a827f132cadd2d32f1f4d90b0a12e641b8124f70b79f6f8131ea0ea91f8b5
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SHA512
590fa04022d0cbd85762ba1e5568c974674685b2c8d9337ebee2448a44bd66ea326844ab97c820cf087bf63ebfa70f1a8aa1ce53133190e060339eb029a76b71
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SSDEEP
6144:h+LpzeANQVBXTBPgLKJDSTQL8jPY1SnKhrn3u4pu:h+LPNQVBFPgLKJDl2Y1SnKI4p
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1236 Wkedua.exe -
resource yara_rule behavioral1/memory/2144-1-0x0000000000400000-0x000000000047E000-memory.dmp upx behavioral1/files/0x0008000000015d22-11.dat upx behavioral1/memory/1236-13-0x0000000000400000-0x000000000047E000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\HLTCDMS83A = "C:\\Windows\\Wkedua.exe" Wkedua.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe File opened for modification C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe File created C:\Windows\Wkedua.exe 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe File opened for modification C:\Windows\Wkedua.exe 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Internet Explorer\Main Wkedua.exe Key created \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Internet Explorer\Main 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe 1236 Wkedua.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2144 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe 1236 Wkedua.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2144 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe 1236 Wkedua.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2144 wrote to memory of 1236 2144 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe 28 PID 2144 wrote to memory of 1236 2144 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe 28 PID 2144 wrote to memory of 1236 2144 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe 28 PID 2144 wrote to memory of 1236 2144 5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\5fa1e8b903222be7c74edce61dfa0435_JaffaCakes118.exe"1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2144 -
C:\Windows\Wkedua.exeC:\Windows\Wkedua.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
PID:1236
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
372B
MD5de98a48c5a9ae79f4f8a0062e2a1b0bc
SHA192dbd45572e76f2919ebbf74264c598616961561
SHA2563451dda323012d7013feee58615056519bec6b4718422bfb0265061caa2cd50d
SHA512a28921563f6751a8a388f6a3f6cc95c4a8a5da8a9e1e492df16326aee28ced321e10ff6941d9917b172597a9bd3fa79ff2e4a46cd589e41da96e87b9126d367d
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Filesize
212KB
MD55fa1e8b903222be7c74edce61dfa0435
SHA10f4d80e03f5f17c6aa0880ea3c22edee48ee7298
SHA256556a827f132cadd2d32f1f4d90b0a12e641b8124f70b79f6f8131ea0ea91f8b5
SHA512590fa04022d0cbd85762ba1e5568c974674685b2c8d9337ebee2448a44bd66ea326844ab97c820cf087bf63ebfa70f1a8aa1ce53133190e060339eb029a76b71