chinese_generic_botnet | a64ace959b459d7f23ceb7b2ff1cbe7f9346e3aa412118d4078b940e13b087a8

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 04:35

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General

Target

tmp.exe
Size

936KB
MD5

f21c518bcafa5fe911f17ffb3c1797b0
SHA1

6ddf4338b8802ed0e698af6d78695cc12d7e55d6
SHA256

a64ace959b459d7f23ceb7b2ff1cbe7f9346e3aa412118d4078b940e13b087a8
SHA512

482a3c93ed737da332be810d543a2afd274b6c20ebcdccf4a324cca756629ffcd402c7ba5b514ad19f91bb27ecdc3de0e3baa30f65658c1f152ad1bcc9f8f25f
SSDEEP

24576:pyF2ZifBvlGsu6ot9vtC1FoV1pltylcVHhE9HZ:4FN5vUikV1XacrEr

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 2 IoCs

botnet

Processes:

resource	yara_rule
behavioral1/memory/2328-8699-0x0000000000400000-0x0000000000548000-memory.dmp	unk_chinese_botnet
behavioral1/memory/1984-17409-0x0000000000400000-0x0000000000548000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 1 IoCs

Processes:

Kvzbtbs.exe

pid	Process
1984	Kvzbtbs.exe

Drops file in System32 directory 1 IoCs

Processes:

Kvzbtbs.exe

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

Suspicious use of NtSetInformationThreadHideFromDebugger 38 IoCs

Processes:

tmp.exeKvzbtbs.exe

pid	Process
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
1984	Kvzbtbs.exe
1984	Kvzbtbs.exe
2328	tmp.exe
1984	Kvzbtbs.exe
2328	tmp.exe
1984	Kvzbtbs.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe
2328	tmp.exe

Drops file in Program Files directory 2 IoCs

Processes:

tmp.exe

description	ioc	Process
File created	C:\Program Files (x86)\Kvzbtbs.exe	tmp.exe
File opened for modification	C:\Program Files (x86)\Kvzbtbs.exe	tmp.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 24 IoCs

Processes:

Kvzbtbs.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A334E054-6092-4D77-8C18-BEB364DDB348}\WpadDecision = "0"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kvzbtbs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A334E054-6092-4D77-8C18-BEB364DDB348}\e2-d1-d0-61-ff-e9	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-d1-d0-61-ff-e9\WpadDecisionReason = "1"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-d1-d0-61-ff-e9\WpadDecisionTime = a03ba358dc92da01	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-d1-d0-61-ff-e9\WpadDecision = "0"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Kvzbtbs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Kvzbtbs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ee000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Kvzbtbs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A334E054-6092-4D77-8C18-BEB364DDB348}\WpadNetworkName = "Network 3"	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-d1-d0-61-ff-e9	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A334E054-6092-4D77-8C18-BEB364DDB348}	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A334E054-6092-4D77-8C18-BEB364DDB348}\WpadDecisionReason = "1"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A334E054-6092-4D77-8C18-BEB364DDB348}\WpadDecisionTime = a03ba358dc92da01	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Kvzbtbs.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
PID:2328

C:\Program Files (x86)\Kvzbtbs.exe
"C:\Program Files (x86)\Kvzbtbs.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies data under HKEY_USERS
PID:1984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Kvzbtbs.exe

Filesize
936KB

MD5
f21c518bcafa5fe911f17ffb3c1797b0

SHA1
6ddf4338b8802ed0e698af6d78695cc12d7e55d6

SHA256
a64ace959b459d7f23ceb7b2ff1cbe7f9346e3aa412118d4078b940e13b087a8

SHA512
482a3c93ed737da332be810d543a2afd274b6c20ebcdccf4a324cca756629ffcd402c7ba5b514ad19f91bb27ecdc3de0e3baa30f65658c1f152ad1bcc9f8f25f

Download Submit
memory/1984-17409-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/1984-17402-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/1984-17395-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/1984-11257-0x0000000001EB0000-0x0000000002031000-memory.dmp

Filesize
1.5MB

Download
memory/1984-8706-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/2328-826-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-860-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-824-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-822-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-828-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-830-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-832-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-834-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-836-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-838-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-840-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-842-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-844-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-846-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-848-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-850-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-0-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/2328-854-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-856-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-820-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-858-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-864-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-866-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-868-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-870-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-872-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-862-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-852-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-2547-0x0000000001F80000-0x0000000002101000-memory.dmp

Filesize
1.5MB

Download
memory/2328-8686-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-8693-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/2328-8699-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/2328-818-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-816-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-814-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-812-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-811-0x0000000002110000-0x0000000002221000-memory.dmp

Filesize
1.1MB

Download
memory/2328-1-0x0000000076BA0000-0x0000000076BE7000-memory.dmp

Filesize
284KB

Download