chinese_generic_botnet | c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753

Analysis

max time kernel
202s
max time network
242s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
22-10-2023 02:32

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General

Target

c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753.exe
Size

352KB
MD5

f0cfa59143200438388da257440d379a
SHA1

c3e0802f6800c74471751454065003ba3dd84430
SHA256

c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753
SHA512

61c2e41399097edcc18d6c25aba72d9f45b0bbcfd6b84d71fe61ecba6da02443c74ab329594b24bce8b16de44aae9af3523b4d562d78dfafa207ae20b6e7145a
SSDEEP

3072:fAAdrtd9KDnHCc5cnFbAgpWli74j/zmbgYDa3S6jb+7sDAZ7E:VCCn4/y8YDa3Sq+7GAZ

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/2752-0-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 2 IoCs

pid	Process
2088	Kcuqyok.exe
2972	Kcuqyok.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	Kcuqyok.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	Kcuqyok.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Kcuqyok.exe	c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753.exe
File opened for modification	C:\Program Files (x86)\Kcuqyok.exe	c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753.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 49 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecisionReason = "1"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadDecision = "0"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadDecisionReason = "1"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadDecisionTime = 200c937f9004da01	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecision = "0"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\fa-a1-28-59-1c-d7	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadDecision = "0"	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\fa-a1-28-59-1c-d7	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecisionTime = 200c937f9004da01	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0048000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecisionTime = 200c937f9004da01	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecisionReason = "1"	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0048000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadDecisionTime = 6060d48b9004da01	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0048000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadNetworkName = "Network 2"	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecision = "0"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kcuqyok.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadDecisionReason = "1"	Kcuqyok.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FE21073-2C68-41D9-86D3-D7567167DDE8}\WpadNetworkName = "Network 2"	Kcuqyok.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDetectedUrl	Kcuqyok.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-a1-28-59-1c-d7\WpadDecisionTime = 6060d48b9004da01	Kcuqyok.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2752	c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2972	2088	Kcuqyok.exe	32
PID 2088 wrote to memory of 2972	2088	Kcuqyok.exe	32
PID 2088 wrote to memory of 2972	2088	Kcuqyok.exe	32
PID 2088 wrote to memory of 2972	2088	Kcuqyok.exe	32

C:\Users\Admin\AppData\Local\Temp\c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753.exe
"C:\Users\Admin\AppData\Local\Temp\c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: RenamesItself
PID:2752

C:\Program Files (x86)\Kcuqyok.exe
"C:\Program Files (x86)\Kcuqyok.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Program Files (x86)\Kcuqyok.exe
  "C:\Program Files (x86)\Kcuqyok.exe" Win7
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  PID:2972

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:\Program Files (x86)\Kcuqyok.exe

Filesize
352KB

MD5
f0cfa59143200438388da257440d379a

SHA1
c3e0802f6800c74471751454065003ba3dd84430

SHA256
c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753

SHA512
61c2e41399097edcc18d6c25aba72d9f45b0bbcfd6b84d71fe61ecba6da02443c74ab329594b24bce8b16de44aae9af3523b4d562d78dfafa207ae20b6e7145a

Download Submit
C:\Program Files (x86)\Kcuqyok.exe

Filesize
352KB

MD5
f0cfa59143200438388da257440d379a

SHA1
c3e0802f6800c74471751454065003ba3dd84430

SHA256
c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753

SHA512
61c2e41399097edcc18d6c25aba72d9f45b0bbcfd6b84d71fe61ecba6da02443c74ab329594b24bce8b16de44aae9af3523b4d562d78dfafa207ae20b6e7145a

Download Submit
C:\Program Files (x86)\Kcuqyok.exe

Filesize
352KB

MD5
f0cfa59143200438388da257440d379a

SHA1
c3e0802f6800c74471751454065003ba3dd84430

SHA256
c64df79676a42e5ef7d5e3c7747c8e76705689078f60f667cc8ad96826123753

SHA512
61c2e41399097edcc18d6c25aba72d9f45b0bbcfd6b84d71fe61ecba6da02443c74ab329594b24bce8b16de44aae9af3523b4d562d78dfafa207ae20b6e7145a

Download Submit
memory/2752-0-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download