chinese_generic_botnet | 42525e109fc534ac972d74fcb8c628528ddecc7c124ff1c0a5059139444f4165

Analysis

max time kernel
41s
max time network
179s
platform
windows7_x64
resource
win7v20210408
submitted
17-08-2021 02:03

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General

Target

mixazed_20210816-155711.exe
Size

283KB
MD5

f85b93364a678d47d4b54675dda1abc3
SHA1

e03b6b4d0690d66e323868e1243b32e2af947b0a
SHA256

42525e109fc534ac972d74fcb8c628528ddecc7c124ff1c0a5059139444f4165
SHA512

97e78d70291383bfbfbef98617294dc1eb61a757ece1eb88aea5036d913c0731fc2247c061d0261fd4cfa97e344b94bce0b55c7878ea6d85222206fae31c96bf

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

resource	yara_rule
behavioral1/memory/676-62-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 2 IoCs

pid	Process
1432	Kkouumo.exe
2020	Kkouumo.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

description	ioc	Process
File opened (read-only)	\??\F:	mixazed_20210816-155711.exe
File opened (read-only)	\??\N:	mixazed_20210816-155711.exe
File opened (read-only)	\??\T:	mixazed_20210816-155711.exe
File opened (read-only)	\??\B:	mixazed_20210816-155711.exe
File opened (read-only)	\??\K:	mixazed_20210816-155711.exe
File opened (read-only)	\??\Q:	mixazed_20210816-155711.exe
File opened (read-only)	\??\R:	mixazed_20210816-155711.exe
File opened (read-only)	\??\V:	mixazed_20210816-155711.exe
File opened (read-only)	\??\Y:	mixazed_20210816-155711.exe
File opened (read-only)	\??\P:	mixazed_20210816-155711.exe
File opened (read-only)	\??\E:	mixazed_20210816-155711.exe
File opened (read-only)	\??\H:	mixazed_20210816-155711.exe
File opened (read-only)	\??\I:	mixazed_20210816-155711.exe
File opened (read-only)	\??\J:	mixazed_20210816-155711.exe
File opened (read-only)	\??\L:	mixazed_20210816-155711.exe
File opened (read-only)	\??\M:	mixazed_20210816-155711.exe
File opened (read-only)	\??\O:	mixazed_20210816-155711.exe
File opened (read-only)	\??\S:	mixazed_20210816-155711.exe
File opened (read-only)	\??\U:	mixazed_20210816-155711.exe
File opened (read-only)	\??\X:	mixazed_20210816-155711.exe
File opened (read-only)	\??\G:	mixazed_20210816-155711.exe
File opened (read-only)	\??\W:	mixazed_20210816-155711.exe
File opened (read-only)	\??\Z:	mixazed_20210816-155711.exe

Drops file in System32 directory 2 IoCs

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

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe	mixazed_20210816-155711.exe
File opened for modification	C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe	mixazed_20210816-155711.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mixazed_20210816-155711.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	mixazed_20210816-155711.exe

Modifies data under HKEY_USERS 49 IoCs

description	ioc	Process
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\ProxyEnable = "0"	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecisionTime = 0098d7851c93d701	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\86-63-5e-29-41-08	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = 20ad6c8e1c93d701	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0"	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecision = "0"	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecisionTime = 20ad6c8e1c93d701	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\86-63-5e-29-41-08	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecisionReason = "1"	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1"	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\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\86-63-5e-29-41-08	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecisionReason = "1"	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07001a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecision = "0"	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07001a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionReason = "1"	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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\ProxyEnable = "0"	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDetectedUrl	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecisionTime = 0098d7851c93d701	Kkouumo.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadDecision = "0"	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network"	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-63-5e-29-41-08\WpadDecisionTime = 0098d7851c93d701	Kkouumo.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a07001a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	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\ZoneMap\	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Kkouumo.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Kkouumo.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3A33DB50-CC69-497D-AB93-6EAB524EB9A7}\WpadNetworkName = "Network"	Kkouumo.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
676	mixazed_20210816-155711.exe
1432	Kkouumo.exe
676	mixazed_20210816-155711.exe
2020	Kkouumo.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
676	mixazed_20210816-155711.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
676	mixazed_20210816-155711.exe
1432	Kkouumo.exe
2020	Kkouumo.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 2020	1432	Kkouumo.exe	32
PID 1432 wrote to memory of 2020	1432	Kkouumo.exe	32
PID 1432 wrote to memory of 2020	1432	Kkouumo.exe	32
PID 1432 wrote to memory of 2020	1432	Kkouumo.exe	32

C:\Users\Admin\AppData\Local\Temp\mixazed_20210816-155711.exe
"C:\Users\Admin\AppData\Local\Temp\mixazed_20210816-155711.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:676

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 behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe
  "C:\Program Files (x86)\Microsoft Fbilag\Kkouumo.exe" Win7
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/676-59-0x0000000002CE0000-0x0000000002D9C000-memory.dmp

Filesize
752KB

Download
memory/676-60-0x0000000000400000-0x0000000002CD4000-memory.dmp

Filesize
40.8MB

Download
memory/676-61-0x0000000075051000-0x0000000075053000-memory.dmp

Filesize
8KB

Download
memory/676-62-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/1432-65-0x0000000000400000-0x0000000002CD4000-memory.dmp

Filesize
40.8MB

Download
memory/2020-75-0x0000000000400000-0x0000000002CD4000-memory.dmp

Filesize
40.8MB

Download