chinese_generic_botnet | cc13d8ef2716a7653e04f1ee11a9be519897982cd83ae95559cb08513ed21c7e

Resubmissions

28-04-2024 18:09

240428-wrxykadd67 10

28-04-2024 18:04

240428-wnnkqadc88 10

Analysis

max time kernel
135s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 18:04

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General

Target

tmp.exe
Size

3.3MB
MD5

d6c0cf36d24f9c78d3e9c62c1ab10d7a
SHA1

40aef92c854049c716038a8ab79758d9d579b90d
SHA256

cc13d8ef2716a7653e04f1ee11a9be519897982cd83ae95559cb08513ed21c7e
SHA512

16b6b134417c3e9f067c2a1e8205067a2a9fac2b4d6342e2da7c8a90d8dcf4fff07ad39ade8e8b007a6a019419a58a733bb722463a472677f472380cf1b8a2bd
SSDEEP

98304:e4uTo0ZdxryDXakEfkslniBGT93rAS1Up0:e4eNeGTfksliBc933G+

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/5724-17440-0x0000000000400000-0x0000000000548000-memory.dmp	unk_chinese_botnet
behavioral1/memory/2732-17441-0x0000000000400000-0x0000000000548000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 3 IoCs

Processes:

QQ.exesvchost.exeKvzbtbs.exe

pid	Process
2732	QQ.exe
2528	svchost.exe
5724	Kvzbtbs.exe

Loads dropped DLL 3 IoCs

Processes:

tmp.exe

pid	Process
2256	tmp.exe
2256	tmp.exe
2256	tmp.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 64 IoCs

Processes:

QQ.exesvchost.exeKvzbtbs.exe

pid	Process
2732	QQ.exe
2732	QQ.exe
2732	QQ.exe
2528	svchost.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
5724	Kvzbtbs.exe
2732	QQ.exe
5724	Kvzbtbs.exe
2528	svchost.exe
2732	QQ.exe
5724	Kvzbtbs.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
5724	Kvzbtbs.exe
2732	QQ.exe
2528	svchost.exe
5724	Kvzbtbs.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe
2528	svchost.exe
2732	QQ.exe

Drops file in Program Files directory 2 IoCs

Processes:

QQ.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Kvzbtbs.exe	QQ.exe
File created	C:\Program Files (x86)\Kvzbtbs.exe	QQ.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\Cookies\CachePrefix = "Cookie:"	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6DEFC3CB-1B7E-4923-BBD6-B2FEC944D511}	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6DEFC3CB-1B7E-4923-BBD6-B2FEC944D511}\WpadDecisionReason = "1"	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6DEFC3CB-1B7E-4923-BBD6-B2FEC944D511}\WpadDecisionTime = 405b63a99699da01	Kvzbtbs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6DEFC3CB-1B7E-4923-BBD6-B2FEC944D511}\WpadNetworkName = "Network 3"	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
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6DEFC3CB-1B7E-4923-BBD6-B2FEC944D511}\WpadDecision = "0"	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-35-df-dc-3d-6b	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-35-df-dc-3d-6b\WpadDecision = "0"	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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\History\CachePrefix = "Visited:"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kvzbtbs.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6DEFC3CB-1B7E-4923-BBD6-B2FEC944D511}\42-35-df-dc-3d-6b	Kvzbtbs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-35-df-dc-3d-6b\WpadDecisionReason = "1"	Kvzbtbs.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-35-df-dc-3d-6b\WpadDecisionTime = 405b63a99699da01	Kvzbtbs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svchost.exe

pid	Process
2528	svchost.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

tmp.exesvchost.exe

pid	Process
2256	tmp.exe
2256	tmp.exe
2528	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

tmp.exe

description	pid	Process	procid_target
PID 2256 wrote to memory of 2732	2256	tmp.exe	28
PID 2256 wrote to memory of 2732	2256	tmp.exe	28
PID 2256 wrote to memory of 2732	2256	tmp.exe	28
PID 2256 wrote to memory of 2732	2256	tmp.exe	28
PID 2256 wrote to memory of 2528	2256	tmp.exe	29
PID 2256 wrote to memory of 2528	2256	tmp.exe	29
PID 2256 wrote to memory of 2528	2256	tmp.exe	29
PID 2256 wrote to memory of 2528	2256	tmp.exe	29

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Roaming\QQ.exe
  "C:\Users\Admin\AppData\Roaming\QQ.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Program Files directory
  PID:2732
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2528

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:5724

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
1.6MB

MD5
e10f2fe129e169b2ac1ce9eeb179c15f

SHA1
bf6b5ac1c98b04b2b881522b10277efa4acb72b5

SHA256
1419f75027c186e8024396999a6841e6bbbcec531d134f8f26491a0fca9715a0

SHA512
590e3c4ddb764ae2764b74f9f6283c7b3635c1dfaf42e3c80b90a2bf71b66b2cff2d5f1519c28965dcbf07152766f28fc827f140cedf3547a5985e4d755cac83

Download Submit
\Users\Admin\AppData\Roaming\QQ.exe

Filesize
936KB

MD5
f21c518bcafa5fe911f17ffb3c1797b0

SHA1
6ddf4338b8802ed0e698af6d78695cc12d7e55d6

SHA256
a64ace959b459d7f23ceb7b2ff1cbe7f9346e3aa412118d4078b940e13b087a8

SHA512
482a3c93ed737da332be810d543a2afd274b6c20ebcdccf4a324cca756629ffcd402c7ba5b514ad19f91bb27ecdc3de0e3baa30f65658c1f152ad1bcc9f8f25f

Download Submit
memory/2256-10-0x0000000002C40000-0x0000000002D88000-memory.dmp

Filesize
1.3MB

Download
memory/2256-11-0x0000000002C40000-0x0000000002D88000-memory.dmp

Filesize
1.3MB

Download
memory/2528-17442-0x0000000140000000-0x00000001401CA000-memory.dmp

Filesize
1.8MB

Download
memory/2528-20-0x0000000140000000-0x00000001401CA000-memory.dmp

Filesize
1.8MB

Download
memory/2732-856-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-866-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-832-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-834-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-836-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-838-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-840-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-842-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-844-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-846-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-848-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-850-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-852-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-854-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-21-0x00000000759E0000-0x0000000075A27000-memory.dmp

Filesize
284KB

Download
memory/2732-858-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-860-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-862-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-864-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-831-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-868-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-870-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-872-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-874-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-876-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-878-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-880-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-892-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-890-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-888-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-886-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-884-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-882-0x0000000002160000-0x0000000002271000-memory.dmp

Filesize
1.1MB

Download
memory/2732-14-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/2732-17441-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/5724-17440-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/5724-8735-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download