asyncrat | 01acf24e5951a2d6d9723153be9bded08a12a93eb0d2d23296e46946398ad47d

General

Target

dfsdfsefsdf.exe
Size

314KB
MD5

1e70b1f2dfa3d0fac7676bf4c640ab26
SHA1

212ec263d1ad3d8b253ab333add181f05ab29f5f
SHA256

01acf24e5951a2d6d9723153be9bded08a12a93eb0d2d23296e46946398ad47d
SHA512

599a624c274069f011c580419dab9484b1efd23881cadb1b740809c6a29325ff2d2b3b0b828ea9ba0d37e83fb524b8d5052b8a9151be56b9d6cc503cedefb9c9
SSDEEP

6144:CUGv5Qw2U2sdKRUtlKZIIHDmu+Bi2OQbQzyu:qvOwrrdPIauCysQP

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

127.0.0.1:448

127.0.0.1:30335

147.185.221.21:4449

147.185.221.21:448

147.185.221.21:30335

Mutex

svgzneojcizyxlbkbtz

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
3908	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1760 set thread context of 3908	1760	dfsdfsefsdf.exe	92

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 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dfsdfsefsdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Checks processor information in registry 2 TTPs 3 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	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1760	dfsdfsefsdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	dfsdfsefsdf.exe
Token: SeBackupPrivilege	2768	dw20.exe
Token: SeBackupPrivilege	2768	dw20.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 1760 wrote to memory of 3908	1760	dfsdfsefsdf.exe	92
PID 3908 wrote to memory of 2768	3908	notepad.exe	94
PID 3908 wrote to memory of 2768	3908	notepad.exe	94
PID 3908 wrote to memory of 2768	3908	notepad.exe	94

C:\Users\Admin\AppData\Local\Temp\dfsdfsefsdf.exe
"C:\Users\Admin\AppData\Local\Temp\dfsdfsefsdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\temp\notepad.exe
  C:\Windows\temp\notepad.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3908
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 804
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2768

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4156,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=1040 /prefetch:8
1⤵
PID:2116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Temp\notepad.exe

Filesize
52KB

MD5
a64daca3cfbcd039df3ec29d3eddd001

SHA1
eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3

SHA256
403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36

SHA512
b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479

Download Submit
memory/1760-0-0x0000000074C12000-0x0000000074C13000-memory.dmp

Filesize
4KB

Download
memory/1760-1-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download
memory/1760-2-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download
memory/1760-17-0x0000000074C12000-0x0000000074C13000-memory.dmp

Filesize
4KB

Download
memory/1760-18-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download
memory/1760-20-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download
memory/3908-5-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3908-8-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download
memory/3908-9-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download
memory/3908-16-0x0000000074C10000-0x00000000751C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads