chinese_generic_botnet | 8e4856e97753bf0e0c73b10d7d7891968e347b73dd2b506e6308d7bca7af0dd0

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
18-04-2023 18:14

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General

Target

PYS.exe
Size

3.4MB
MD5

3651d9ca9d9a43985750f0de73f0c807
SHA1

15810e62673e4625b4c8c61ad37f4b48a4760f55
SHA256

8e4856e97753bf0e0c73b10d7d7891968e347b73dd2b506e6308d7bca7af0dd0
SHA512

23f604c116eea0d4212740594eefe0b044d6e088fad17bbc073c97923e31cb28b53a570a375adf012dbb7f797827595e48bf9a781913f4c08ae0125e0d0a5e05
SSDEEP

98304:Ps+xhKoQJBwKhJ+O+uiXAqSuuWHoFN6WtljaEy9oFLOAkGkzdnEVomFHKnP:5oJpQAqSudHmN6WtljaEyqFLOyomFHKP

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/1768-54-0x0000000000700000-0x0000000000726000-memory.dmp	unk_chinese_botnet
behavioral1/memory/1768-55-0x0000000010000000-0x0000000010027000-memory.dmp	unk_chinese_botnet

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

Windowsfig.exe

pid process

760 Windowsfig.exe
Loads dropped DLL 6 IoCs

Processes:

PYS.exeWerFault.exe

pid process

1768 PYS.exe
1100 WerFault.exe
1100 WerFault.exe
1100 WerFault.exe
1100 WerFault.exe
1100 WerFault.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1100 760 WerFault.exe Windowsfig.exe

pid	process
760	Windowsfig.exe

pid	process
1768	PYS.exe
1100	WerFault.exe
1100	WerFault.exe
1100	WerFault.exe
1100	WerFault.exe
1100	WerFault.exe

pid	pid_target	process	target process
1100	760	WerFault.exe	Windowsfig.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PYS.exeWindowsfig.exe

description	pid	process	target process
PID 1768 wrote to memory of 760	1768	PYS.exe	Windowsfig.exe
PID 1768 wrote to memory of 760	1768	PYS.exe	Windowsfig.exe
PID 1768 wrote to memory of 760	1768	PYS.exe	Windowsfig.exe
PID 1768 wrote to memory of 760	1768	PYS.exe	Windowsfig.exe
PID 760 wrote to memory of 1100	760	Windowsfig.exe	WerFault.exe
PID 760 wrote to memory of 1100	760	Windowsfig.exe	WerFault.exe
PID 760 wrote to memory of 1100	760	Windowsfig.exe	WerFault.exe
PID 760 wrote to memory of 1100	760	Windowsfig.exe	WerFault.exe
PID 1768 wrote to memory of 636	1768	PYS.exe	cmd.exe
PID 1768 wrote to memory of 636	1768	PYS.exe	cmd.exe
PID 1768 wrote to memory of 636	1768	PYS.exe	cmd.exe
PID 1768 wrote to memory of 636	1768	PYS.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\PYS.exe
"C:\Users\Admin\AppData\Local\Temp\PYS.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1768

C:\ProgramData\Windowsfig.exe
"C:\ProgramData\Windowsfig.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 624
3⤵
- Loads dropped DLL
- Program crash
PID:1100

C:\Windows\SysWOW64\cmd.exe
cmd /C "del /F /S /Q /A C:\ProgramData\Windowsfig.exe"
2⤵
PID:636

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
C:\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
C:\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
\ProgramData\Windowsfig.exe
Filesize
108KB

MD5
40528a8ce542af784cb9958552f7798d

SHA1
58c5ba782f367a1d65bf712ada150fe0b5e14292

SHA256
46780be1f3276ff325e105b85d5cac13b1eae75b04d17340bca01c7d63027cfc

SHA512
dad82f72882e2a7ca2fe4cea7360150bdffe394dca582f7afdc378ff6e77578e3dd12da668bf2297532b3d2475d97838571cca6343c4a7515d26449acf287e0a

Download Submit
memory/760-84-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/760-83-0x00000000003D0000-0x00000000003EE000-memory.dmp

Filesize
120KB

Download
memory/760-82-0x0000000001140000-0x0000000001160000-memory.dmp

Filesize
128KB

Download
memory/760-90-0x0000000004960000-0x00000000049A0000-memory.dmp

Filesize
256KB

Download
memory/760-91-0x0000000004960000-0x00000000049A0000-memory.dmp

Filesize
256KB

Download
memory/1768-55-0x0000000010000000-0x0000000010027000-memory.dmp

Filesize
156KB

Download
memory/1768-54-0x0000000000700000-0x0000000000726000-memory.dmp

Filesize
152KB

Download