chinese_generic_botnet | aa4e98cc1072e0e9fd534328ed914142d95ae656ad8c7d1ef78c3240053a56a3

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
18-04-2023 18:16

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General

Target

SL.exe
Size

3.5MB
MD5

93c2a75c217a41953020ca05fca91b6e
SHA1

1a8fa114340d28093ce669dc6617c4e008be9508
SHA256

aa4e98cc1072e0e9fd534328ed914142d95ae656ad8c7d1ef78c3240053a56a3
SHA512

53e7d9dee6ca5f50ca5a9523ed50449e469dced460b78daea33b730465380992a33a5b79365cc464e6d50f2a487b0c6536856b9dfdf1dce8c8529ee66c9fa663
SSDEEP

98304:hN8AFvakR4CspOvm8bkLOLqP3IHoFN6WtljaEy9OFLOAkGkzdnEVomFHKnPg:hvpFqOLqP3IHmN6WtljaEy4FLOyomFHj

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

resource	yara_rule
behavioral1/memory/804-54-0x0000000000140000-0x0000000000166000-memory.dmp	unk_chinese_botnet
behavioral1/memory/804-55-0x0000000010000000-0x0000000010027000-memory.dmp	unk_chinese_botnet

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1896	Windowsfig.exe

Loads dropped DLL 6 IoCs

pid	Process
804	SL.exe
1744	WerFault.exe
1744	WerFault.exe
1744	WerFault.exe
1744	WerFault.exe
1744	WerFault.exe

Enumerates connected drives 3 TTPs 23 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)	\??\E:	SL.exe
File opened (read-only)	\??\O:	SL.exe
File opened (read-only)	\??\P:	SL.exe
File opened (read-only)	\??\T:	SL.exe
File opened (read-only)	\??\U:	SL.exe
File opened (read-only)	\??\V:	SL.exe
File opened (read-only)	\??\X:	SL.exe
File opened (read-only)	\??\L:	SL.exe
File opened (read-only)	\??\H:	SL.exe
File opened (read-only)	\??\K:	SL.exe
File opened (read-only)	\??\M:	SL.exe
File opened (read-only)	\??\Q:	SL.exe
File opened (read-only)	\??\R:	SL.exe
File opened (read-only)	\??\S:	SL.exe
File opened (read-only)	\??\B:	SL.exe
File opened (read-only)	\??\G:	SL.exe
File opened (read-only)	\??\I:	SL.exe
File opened (read-only)	\??\J:	SL.exe
File opened (read-only)	\??\N:	SL.exe
File opened (read-only)	\??\W:	SL.exe
File opened (read-only)	\??\Y:	SL.exe
File opened (read-only)	\??\Z:	SL.exe
File opened (read-only)	\??\F:	SL.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

pid	pid_target	Process	procid_target
1744	1896	WerFault.exe	28

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
804	SL.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 1896	804	SL.exe	28
PID 804 wrote to memory of 1896	804	SL.exe	28
PID 804 wrote to memory of 1896	804	SL.exe	28
PID 804 wrote to memory of 1896	804	SL.exe	28
PID 1896 wrote to memory of 1744	1896	Windowsfig.exe	29
PID 1896 wrote to memory of 1744	1896	Windowsfig.exe	29
PID 1896 wrote to memory of 1744	1896	Windowsfig.exe	29
PID 1896 wrote to memory of 1744	1896	Windowsfig.exe	29
PID 804 wrote to memory of 1944	804	SL.exe	30
PID 804 wrote to memory of 1944	804	SL.exe	30
PID 804 wrote to memory of 1944	804	SL.exe	30
PID 804 wrote to memory of 1944	804	SL.exe	30

C:\Users\Admin\AppData\Local\Temp\SL.exe
"C:\Users\Admin\AppData\Local\Temp\SL.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:804
- C:\ProgramData\Windowsfig.exe
  "C:\ProgramData\Windowsfig.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 624
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1744
- C:\Windows\SysWOW64\cmd.exe
  cmd /C "del /F /S /Q /A C:\ProgramData\Windowsfig.exe"
  2⤵
  PID:1944

Network

MITRE ATT&CK Enterprise v6

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:\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/804-55-0x0000000010000000-0x0000000010027000-memory.dmp

Filesize
156KB

Download
memory/804-54-0x0000000000140000-0x0000000000166000-memory.dmp

Filesize
152KB

Download
memory/1896-83-0x0000000000420000-0x000000000043E000-memory.dmp

Filesize
120KB

Download
memory/1896-84-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1896-85-0x0000000004950000-0x0000000004990000-memory.dmp

Filesize
256KB

Download
memory/1896-82-0x0000000000970000-0x0000000000990000-memory.dmp

Filesize
128KB

Download
memory/1896-91-0x0000000004950000-0x0000000004990000-memory.dmp

Filesize
256KB

Download