chinese_generic_botnet | a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

General

Target

fbf.exe
Size

249KB
MD5

fbf3187db919beaddb30ae7e52bd9a49
SHA1

d2891928551f2adff238547c7cae4e3fef7cc057
SHA256

a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd
SHA512

1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

Score

10^/10

chinese_generic_botnet botnet

Malware Config

Signatures

Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
botnet chinese_generic_botnet

Chinese Botnet Payload 1 IoCs

botnet

Processes:

resource	yara_rule
behavioral1/memory/1660-63-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 2 IoCs

Processes:

Uuuocai.exeUuuocai.exe

pid process

1040 Uuuocai.exe
1324 Uuuocai.exe

pid	process
1040	Uuuocai.exe
1324	Uuuocai.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

fbf.exe

description	ioc	process
File opened (read-only)	\??\K:	fbf.exe
File opened (read-only)	\??\L:	fbf.exe
File opened (read-only)	\??\P:	fbf.exe
File opened (read-only)	\??\Q:	fbf.exe
File opened (read-only)	\??\U:	fbf.exe
File opened (read-only)	\??\F:	fbf.exe
File opened (read-only)	\??\I:	fbf.exe
File opened (read-only)	\??\N:	fbf.exe
File opened (read-only)	\??\S:	fbf.exe
File opened (read-only)	\??\V:	fbf.exe
File opened (read-only)	\??\X:	fbf.exe
File opened (read-only)	\??\G:	fbf.exe
File opened (read-only)	\??\M:	fbf.exe
File opened (read-only)	\??\R:	fbf.exe
File opened (read-only)	\??\J:	fbf.exe
File opened (read-only)	\??\O:	fbf.exe
File opened (read-only)	\??\H:	fbf.exe
File opened (read-only)	\??\T:	fbf.exe
File opened (read-only)	\??\W:	fbf.exe
File opened (read-only)	\??\Y:	fbf.exe
File opened (read-only)	\??\Z:	fbf.exe
File opened (read-only)	\??\B:	fbf.exe
File opened (read-only)	\??\E:	fbf.exe

Drops file in System32 directory 2 IoCs

Processes:

Uuuocai.exeUuuocai.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	Uuuocai.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	Uuuocai.exe

Drops file in Program Files directory 2 IoCs

Processes:

fbf.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe	fbf.exe
File opened for modification	C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe	fbf.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

fbf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	fbf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	fbf.exe

Modifies data under HKEY_USERS 49 IoCs

Processes:

Uuuocai.exeUuuocai.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = a0505355f8b2d701	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network"	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\16-9e-1c-4b-ba-31	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07001b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecisionTime = a0505355f8b2d701	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07001b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecisionReason = "1"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0"	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecisionReason = "1"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecision = "0"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07001b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecision = "0"	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network"	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecisionTime = 0011a25ef8b2d701	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Uuuocai.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\16-9e-1c-4b-ba-31	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDecisionTime = a0505355f8b2d701	Uuuocai.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-9e-1c-4b-ba-31\WpadDetectedUrl	Uuuocai.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1"	Uuuocai.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = 0011a25ef8b2d701	Uuuocai.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

fbf.exeUuuocai.exeUuuocai.exe

pid process

1660 fbf.exe
1040 Uuuocai.exe
1660 fbf.exe
1324 Uuuocai.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

fbf.exe

pid process

1660 fbf.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

fbf.exeUuuocai.exeUuuocai.exe

pid process

1660 fbf.exe
1040 Uuuocai.exe
1324 Uuuocai.exe

pid	process
1660	fbf.exe
1040	Uuuocai.exe
1660	fbf.exe
1324	Uuuocai.exe

pid	process
1660	fbf.exe

pid	process
1660	fbf.exe
1040	Uuuocai.exe
1324	Uuuocai.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Uuuocai.exe

description	pid	process	target process
PID 1040 wrote to memory of 1324	1040	Uuuocai.exe	Uuuocai.exe
PID 1040 wrote to memory of 1324	1040	Uuuocai.exe	Uuuocai.exe
PID 1040 wrote to memory of 1324	1040	Uuuocai.exe	Uuuocai.exe
PID 1040 wrote to memory of 1324	1040	Uuuocai.exe	Uuuocai.exe

C:\Users\Admin\AppData\Local\Temp\fbf.exe
"C:\Users\Admin\AppData\Local\Temp\fbf.exe"
1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:1660

C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
"C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1040

C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
"C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe" Win7
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1324

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
MD5
fbf3187db919beaddb30ae7e52bd9a49

SHA1
d2891928551f2adff238547c7cae4e3fef7cc057

SHA256
a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

SHA512
1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

Download Submit
C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
MD5
fbf3187db919beaddb30ae7e52bd9a49

SHA1
d2891928551f2adff238547c7cae4e3fef7cc057

SHA256
a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

SHA512
1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

Download Submit
C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
MD5
fbf3187db919beaddb30ae7e52bd9a49

SHA1
d2891928551f2adff238547c7cae4e3fef7cc057

SHA256
a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd

SHA512
1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab

Download Submit
memory/1324-70-0x0000000000000000-mapping.dmp

Download
memory/1660-60-0x0000000000220000-0x00000000002DC000-memory.dmp

Filesize
752KB

Download
memory/1660-61-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/1660-62-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/1660-63-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads