chinese_generic_botnet | 53b9a0465f0f42c412ba90058ed129e7e6c4c97f724f537a7e03c9931c8bbc60

Resubmissions

22-09-2021 03:40

210922-d8nr4sbad5 10

20-09-2021 08:58

210920-kxhv2sdec5 10

08-08-2021 11:12

210808-6klsp4qpxn 10

Analysis

max time kernel
28s
max time network
151s
platform
windows10_x64
resource
win10v20210408
submitted
08-08-2021 11:12

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General

Target

eufive_20210808-125605.exe
Size

325KB
MD5

94b43aaf8dd6506835fd99917a412b9f
SHA1

17eb10f6f986eff21f49586b06e844784ab66dab
SHA256

53b9a0465f0f42c412ba90058ed129e7e6c4c97f724f537a7e03c9931c8bbc60
SHA512

614cd22f7ac4afa103a8995dbb30ae83f48156ba7759ab402e9929dcc7033c793b1aac6108ca8a29973ed552507f7e98a884000392c46137c9fdf183ade96797

Score

10^/10

chinese_generic_botnet botnet persistence

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

Processes:

resource	yara_rule
behavioral2/memory/664-116-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

eufive_20210808-125605.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wakkeos.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\eufive_20210808-125605.exe"	eufive_20210808-125605.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

Processes:

eufive_20210808-125605.exe

description	ioc	process
File opened (read-only)	\??\O:	eufive_20210808-125605.exe
File opened (read-only)	\??\S:	eufive_20210808-125605.exe
File opened (read-only)	\??\Y:	eufive_20210808-125605.exe
File opened (read-only)	\??\B:	eufive_20210808-125605.exe
File opened (read-only)	\??\N:	eufive_20210808-125605.exe
File opened (read-only)	\??\M:	eufive_20210808-125605.exe
File opened (read-only)	\??\U:	eufive_20210808-125605.exe
File opened (read-only)	\??\W:	eufive_20210808-125605.exe
File opened (read-only)	\??\H:	eufive_20210808-125605.exe
File opened (read-only)	\??\I:	eufive_20210808-125605.exe
File opened (read-only)	\??\L:	eufive_20210808-125605.exe
File opened (read-only)	\??\F:	eufive_20210808-125605.exe
File opened (read-only)	\??\K:	eufive_20210808-125605.exe
File opened (read-only)	\??\J:	eufive_20210808-125605.exe
File opened (read-only)	\??\P:	eufive_20210808-125605.exe
File opened (read-only)	\??\Q:	eufive_20210808-125605.exe
File opened (read-only)	\??\R:	eufive_20210808-125605.exe
File opened (read-only)	\??\T:	eufive_20210808-125605.exe
File opened (read-only)	\??\V:	eufive_20210808-125605.exe
File opened (read-only)	\??\E:	eufive_20210808-125605.exe
File opened (read-only)	\??\G:	eufive_20210808-125605.exe
File opened (read-only)	\??\X:	eufive_20210808-125605.exe
File opened (read-only)	\??\Z:	eufive_20210808-125605.exe

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

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

Processes:

eufive_20210808-125605.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	eufive_20210808-125605.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	eufive_20210808-125605.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

eufive_20210808-125605.exe

pid process

664 eufive_20210808-125605.exe
664 eufive_20210808-125605.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

eufive_20210808-125605.exe

pid process

664 eufive_20210808-125605.exe

pid	process
664	eufive_20210808-125605.exe
664	eufive_20210808-125605.exe

pid	process
664	eufive_20210808-125605.exe

C:\Users\Admin\AppData\Local\Temp\eufive_20210808-125605.exe
"C:\Users\Admin\AppData\Local\Temp\eufive_20210808-125605.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:664

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/664-114-0x0000000004A30000-0x0000000004AEC000-memory.dmp

Filesize
752KB

Download
memory/664-115-0x0000000000400000-0x0000000002C87000-memory.dmp

Filesize
40.5MB

Download
memory/664-116-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/664-118-0x0000000005D09000-0x0000000005D10000-memory.dmp

Filesize
28KB

Download
memory/664-119-0x0000000005D01000-0x0000000005D09000-memory.dmp

Filesize
32KB

Download