asyncrat | d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d

General

Target

d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe
Size

136KB
MD5

71166c04e60532bb84fc37b12cbc39c2
SHA1

438f6bc46adc2f500516adfa83668ae0bf48abfd
SHA256

d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d
SHA512

bfbd3b5a909c4a89639c20ac63e3947e5c78f16b05adc8496bcda9ccb6642ac848256c9778c80f8150ecf8138c33ed5c4c1ba391fd20e83427fb4b09e9aa58bd
SSDEEP

3072:seRxy2E/7oh9/Gzyx7XaI/7fI81Z34zikDMSb1BYLWQfv:BkO9/GKX17FZIukD9O3

Score

10^/10

asyncrat venomrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

qdjtygkpttzwe

Attributes

delay
1
install
false
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/w9ciyBd2

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

VenomRAT 2 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/files/0x001000000001866e-11.dat	VenomRAT
behavioral1/memory/2756-14-0x0000000000D10000-0x0000000000D2E000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/files/0x001000000001866e-11.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid	Process
2756	Client.exe

Loads dropped DLL 1 IoCs

Processes:

d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe

pid	Process
2904	d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

Processes:

flow	ioc
4	pastebin.com
5	pastebin.com

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exeDllHost.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

Client.exe

pid	Process
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe
2756	Client.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Client.exe

description	pid	Process
Token: SeDebugPrivilege	2756	Client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid	Process
2888	DllHost.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

Client.exeDllHost.exe

pid	Process
2756	Client.exe
2888	DllHost.exe
2888	DllHost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe

description	pid	Process	procid_target
PID 2904 wrote to memory of 2756	2904	d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe	31
PID 2904 wrote to memory of 2756	2904	d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe	31
PID 2904 wrote to memory of 2756	2904	d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe	31
PID 2904 wrote to memory of 2756	2904	d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe	31

C:\Users\Admin\AppData\Local\Temp\d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe
"C:\Users\Admin\AppData\Local\Temp\d34a8a8a5661c308dff6fa997aa1151ee7ed46bfefee20b64e826292a272e42d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\AppData\Roaming\Client.exe
  "C:\Users\Admin\AppData\Roaming\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2756

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Client.exe

Filesize
96KB

MD5
8f0807d1ba521c06b793a6717744c4f3

SHA1
f5a414ddcbf4a7bcc420912d4a8eb5f414f2ea35

SHA256
c40b7d6c8145eb7b3d40d868c72701f21b1390259585e0bfaf0ac4b66b438572

SHA512
cacae5105f21d0d5d6b930f8e86c6fd0ed2adcf289e18ad9e34d584bcd757b7beb17ed31cd64ee0514b2b6ed21b68ec0361a7b37c9d063981320c698769ae134

Download Submit
C:\Users\Admin\AppData\Roaming\istockphoto-1212369987-612x612.jpg

Filesize
34KB

MD5
9e2447961613086a0bfbd34dececd929

SHA1
7ef96a9b48f63f94fc91ab0f17b18d4c81c77901

SHA256
ee30977c24b9607c07513670e524bdb95fdd89c1c1c4d551666a4b9a64a4a5f8

SHA512
379117b6a5b3ce178069ec7e51aca3026168a827685235a6d372e9d5f9b14470e7755bd1b9179c46019273b00dc25fcca807189d62a2414ff0e355457a65a675

Download Submit
memory/2756-14-0x0000000000D10000-0x0000000000D2E000-memory.dmp

Filesize
120KB

Download
memory/2888-5-0x0000000000220000-0x0000000000222000-memory.dmp

Filesize
8KB

Download
memory/2888-12-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2888-17-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2904-0-0x0000000074241000-0x0000000074242000-memory.dmp

Filesize
4KB

Download
memory/2904-1-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-3-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-4-0x0000000000540000-0x0000000000542000-memory.dmp

Filesize
8KB

Download
memory/2904-13-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads