Resubmissions
22-09-2021 03:40
210922-d8nr4sbad5 1020-09-2021 08:58
210920-kxhv2sdec5 1008-08-2021 11:12
210808-6klsp4qpxn 10Analysis
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max time kernel
153s -
max time network
179s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
22-09-2021 03:40
Static task
static1
Behavioral task
behavioral1
Sample
eufive_20210808-125605.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
eufive_20210808-125605.exe
Resource
win10-en-20210920
General
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Target
eufive_20210808-125605.exe
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Size
325KB
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MD5
94b43aaf8dd6506835fd99917a412b9f
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SHA1
17eb10f6f986eff21f49586b06e844784ab66dab
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SHA256
53b9a0465f0f42c412ba90058ed129e7e6c4c97f724f537a7e03c9931c8bbc60
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SHA512
614cd22f7ac4afa103a8995dbb30ae83f48156ba7759ab402e9929dcc7033c793b1aac6108ca8a29973ed552507f7e98a884000392c46137c9fdf183ade96797
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 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1832-63-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet -
Executes dropped EXE 2 IoCs
Processes:
Wakkeos.exeWakkeos.exepid process 1720 Wakkeos.exe 1476 Wakkeos.exe -
Drops file in System32 directory 2 IoCs
Processes:
Wakkeos.exeWakkeos.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat Wakkeos.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat Wakkeos.exe -
Drops file in Program Files directory 2 IoCs
Processes:
eufive_20210808-125605.exedescription ioc process File created C:\Program Files (x86)\Microsoft Egkgcm\Wakkeos.exe eufive_20210808-125605.exe File opened for modification C:\Program Files (x86)\Microsoft Egkgcm\Wakkeos.exe eufive_20210808-125605.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 49 IoCs
Processes:
Wakkeos.exeWakkeos.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDetectedUrl Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network" Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecisionTime = c09f968974afd701 Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\4a-bf-ca-a0-7c-46 Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecisionReason = "1" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecision = "0" Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = 8048169274afd701 Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecisionTime = 8048169274afd701 Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46 Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07000f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7} Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\4a-bf-ca-a0-7c-46 Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecision = "0" Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46 Wakkeos.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecisionReason = "1" Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-bf-ca-a0-7c-46\WpadDecisionTime = c09f968974afd701 Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07000f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network" Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings Wakkeos.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7} Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = c09f968974afd701 Wakkeos.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07000f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix Wakkeos.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" Wakkeos.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
eufive_20210808-125605.exeWakkeos.exeWakkeos.exepid process 1832 eufive_20210808-125605.exe 1720 Wakkeos.exe 1476 Wakkeos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
Wakkeos.exedescription pid process target process PID 1720 wrote to memory of 1476 1720 Wakkeos.exe Wakkeos.exe PID 1720 wrote to memory of 1476 1720 Wakkeos.exe Wakkeos.exe PID 1720 wrote to memory of 1476 1720 Wakkeos.exe Wakkeos.exe PID 1720 wrote to memory of 1476 1720 Wakkeos.exe Wakkeos.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\eufive_20210808-125605.exe"C:\Users\Admin\AppData\Local\Temp\eufive_20210808-125605.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
PID:1832
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C:\Program Files (x86)\Microsoft Egkgcm\Wakkeos.exe"C:\Program Files (x86)\Microsoft Egkgcm\Wakkeos.exe"1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Program Files (x86)\Microsoft Egkgcm\Wakkeos.exe"C:\Program Files (x86)\Microsoft Egkgcm\Wakkeos.exe" Win72⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1476
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Network
MITRE ATT&CK Enterprise v6
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Downloads
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MD5
94b43aaf8dd6506835fd99917a412b9f
SHA117eb10f6f986eff21f49586b06e844784ab66dab
SHA25653b9a0465f0f42c412ba90058ed129e7e6c4c97f724f537a7e03c9931c8bbc60
SHA512614cd22f7ac4afa103a8995dbb30ae83f48156ba7759ab402e9929dcc7033c793b1aac6108ca8a29973ed552507f7e98a884000392c46137c9fdf183ade96797
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MD5
94b43aaf8dd6506835fd99917a412b9f
SHA117eb10f6f986eff21f49586b06e844784ab66dab
SHA25653b9a0465f0f42c412ba90058ed129e7e6c4c97f724f537a7e03c9931c8bbc60
SHA512614cd22f7ac4afa103a8995dbb30ae83f48156ba7759ab402e9929dcc7033c793b1aac6108ca8a29973ed552507f7e98a884000392c46137c9fdf183ade96797
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MD5
94b43aaf8dd6506835fd99917a412b9f
SHA117eb10f6f986eff21f49586b06e844784ab66dab
SHA25653b9a0465f0f42c412ba90058ed129e7e6c4c97f724f537a7e03c9931c8bbc60
SHA512614cd22f7ac4afa103a8995dbb30ae83f48156ba7759ab402e9929dcc7033c793b1aac6108ca8a29973ed552507f7e98a884000392c46137c9fdf183ade96797