chinese_generic_botnet | b4d51b0354e7508d723396fa6affd92b5108fa3cd27ecd4c86001a5ffb999cb8

Analysis

max time kernel
117s
max time network
155s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
17-11-2023 01:08

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General

Target

NEAS.108fde1527d48fabd718d3b25d58ce40.exe
Size

1.8MB
MD5

108fde1527d48fabd718d3b25d58ce40
SHA1

fdd49fafb3fc40b700204f60d754143468762f4d
SHA256

b4d51b0354e7508d723396fa6affd92b5108fa3cd27ecd4c86001a5ffb999cb8
SHA512

140a12f14e3733a4a2989dccf645033e628684bcd4c56e63c7d2d22ed2893ce71e986e6c1ef04fde121125dbed128d48245d121980ac0bceb2fe7fdc809e6e04
SSDEEP

12288:uvTIiUxmYh90jjAblb1yHy8ZV0Lug6BtPtzFS30pS6zxgIsxITrLpyPYCSXh1M2p:ubIiCm898jGyS8RY3VSdsxIPL1/xUU

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/1056-8-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 3 IoCs

pid	Process
1056	Server.exe
2580	Rotzeac.exe
1992	Rotzeac.exe

Loads dropped DLL 2 IoCs

pid	Process
2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe
2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe

Enumerates connected drives 3 TTPs 22 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)	\??\U:	Server.exe
File opened (read-only)	\??\X:	Server.exe
File opened (read-only)	\??\Y:	Server.exe
File opened (read-only)	\??\B:	Server.exe
File opened (read-only)	\??\G:	Server.exe
File opened (read-only)	\??\I:	Server.exe
File opened (read-only)	\??\J:	Server.exe
File opened (read-only)	\??\P:	Server.exe
File opened (read-only)	\??\Z:	Server.exe
File opened (read-only)	\??\E:	Server.exe
File opened (read-only)	\??\O:	Server.exe
File opened (read-only)	\??\T:	Server.exe
File opened (read-only)	\??\S:	Server.exe
File opened (read-only)	\??\V:	Server.exe
File opened (read-only)	\??\H:	Server.exe
File opened (read-only)	\??\L:	Server.exe
File opened (read-only)	\??\N:	Server.exe
File opened (read-only)	\??\Q:	Server.exe
File opened (read-only)	\??\R:	Server.exe
File opened (read-only)	\??\K:	Server.exe
File opened (read-only)	\??\M:	Server.exe
File opened (read-only)	\??\W:	Server.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Server.exe	NEAS.108fde1527d48fabd718d3b25d58ce40.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	Rotzeac.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	Rotzeac.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe	Server.exe
File opened for modification	C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe	Server.exe

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

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	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Server.exe

Modifies data under HKEY_USERS 49 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecisionReason = "1"	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecisionTime = 10c7eac9f218da01	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0082000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecision = "0"	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecisionTime = 504543d1f218da01	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadDecisionReason = "1"	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecision = "0"	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\16-56-33-b1-9e-eb	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\16-56-33-b1-9e-eb	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecisionTime = 10c7eac9f218da01	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadNetworkName = "Network 2"	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadDecision = "0"	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0082000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadDecisionTime = 10c7eac9f218da01	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadDecisionReason = "1"	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadDecisionTime = 504543d1f218da01	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadDecision = "0"	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Rotzeac.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0082000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDecisionReason = "1"	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-56-33-b1-9e-eb\WpadDetectedUrl	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Rotzeac.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Rotzeac.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Rotzeac.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2C04A0-C48E-4469-948E-C3A9B417C6AD}\WpadNetworkName = "Network 2"	Rotzeac.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1056	Server.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe
2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe
1056	Server.exe
2580	Rotzeac.exe
1992	Rotzeac.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 1056	2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	28
PID 2232 wrote to memory of 1056	2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	28
PID 2232 wrote to memory of 1056	2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	28
PID 2232 wrote to memory of 1056	2232	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	28
PID 2580 wrote to memory of 1992	2580	Rotzeac.exe	34
PID 2580 wrote to memory of 1992	2580	Rotzeac.exe	34
PID 2580 wrote to memory of 1992	2580	Rotzeac.exe	34
PID 2580 wrote to memory of 1992	2580	Rotzeac.exe	34

C:\Users\Admin\AppData\Local\Temp\NEAS.108fde1527d48fabd718d3b25d58ce40.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.108fde1527d48fabd718d3b25d58ce40.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\Server.exe
  C:\Windows\system32\\Server.exe
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1056

C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe
"C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe
  "C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe" Win7
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious use of SetWindowsHookEx
  PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
C:\Program Files (x86)\Microsoft Yeqcqk\Rotzeac.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
C:\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
C:\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
C:\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
memory/1056-8-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download