Analysis
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max time kernel
142s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
18-04-2024 16:33
Static task
static1
Behavioral task
behavioral1
Sample
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe
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Size
283KB
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MD5
f85b93364a678d47d4b54675dda1abc3
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SHA1
e03b6b4d0690d66e323868e1243b32e2af947b0a
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SHA256
42525e109fc534ac972d74fcb8c628528ddecc7c124ff1c0a5059139444f4165
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SHA512
97e78d70291383bfbfbef98617294dc1eb61a757ece1eb88aea5036d913c0731fc2247c061d0261fd4cfa97e344b94bce0b55c7878ea6d85222206fae31c96bf
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SSDEEP
6144:OKrLgPF8Q6JOI8WCjYd2XGSa/oZrUf0c/mH8M:OqkPaQ6JqVY2aAS1C8
Malware Config
Signatures
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Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
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Chinese Botnet payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2188-4-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet behavioral1/memory/2188-7-0x0000000000400000-0x0000000002CD4000-memory.dmp unk_chinese_botnet behavioral1/memory/2460-23-0x0000000000400000-0x0000000002CD4000-memory.dmp unk_chinese_botnet -
Executes dropped EXE 1 IoCs
Processes:
Kkouumo.exepid Process 2460 Kkouumo.exe -
Drops file in System32 directory 1 IoCs
Processes:
Kkouumo.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat Kkouumo.exe -
Drops file in Program Files directory 2 IoCs
Processes:
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exedescription ioc Process File opened for modification C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 24 IoCs
Processes:
Kkouumo.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix Kkouumo.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5F9B8F74-4AAE-48F7-8532-B5F1709EECD1}\WpadDecisionTime = 90505b4dae91da01 Kkouumo.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-f8-d9-9c-85-99\WpadDecisionTime = 90505b4dae91da01 Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings Kkouumo.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Kkouumo.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" Kkouumo.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5F9B8F74-4AAE-48F7-8532-B5F1709EECD1} Kkouumo.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5F9B8F74-4AAE-48F7-8532-B5F1709EECD1}\WpadNetworkName = "Network 3" Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5F9B8F74-4AAE-48F7-8532-B5F1709EECD1}\16-f8-d9-9c-85-99 Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5F9B8F74-4AAE-48F7-8532-B5F1709EECD1}\WpadDecisionReason = "1" Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5F9B8F74-4AAE-48F7-8532-B5F1709EECD1}\WpadDecision = "0" Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-f8-d9-9c-85-99\WpadDecisionReason = "1" Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-f8-d9-9c-85-99\WpadDecision = "0" Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" Kkouumo.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" Kkouumo.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-f8-d9-9c-85-99 Kkouumo.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Kkouumo.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" Kkouumo.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exepid Process 2188 f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exepid Process 2188 f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exeKkouumo.exepid Process 2188 f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe 2460 Kkouumo.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f85b93364a678d47d4b54675dda1abc3_JaffaCakes118.exe"1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:2188
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C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe"C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe"1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2460
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
283KB
MD5f85b93364a678d47d4b54675dda1abc3
SHA1e03b6b4d0690d66e323868e1243b32e2af947b0a
SHA25642525e109fc534ac972d74fcb8c628528ddecc7c124ff1c0a5059139444f4165
SHA51297e78d70291383bfbfbef98617294dc1eb61a757ece1eb88aea5036d913c0731fc2247c061d0261fd4cfa97e344b94bce0b55c7878ea6d85222206fae31c96bf