asyncrat | d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-11-2024 03:02

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General

Target

d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe
Size

552KB
MD5

4940da1a6d964cc9090584fdb9ff306d
SHA1

e5be22aa824effd315eac3704dcc8790b0718dc0
SHA256

d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961
SHA512

6febe5992c168273500e081967c648cef21b1f0c9cd0b11bfc16c9e1975fb5bae82cffb732a9baf6c5a38bb5adf5be814eb8ab75ce24be080092190c9d72bf91
SSDEEP

12288:ClxHRmQa1wEqTH+nsh1XMav+HaezctT4hZfmg:8HRmcH+meaWFzcts/fF

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

127.0.0.1:1960

cuit.ydns.eu:1960

Mutex

Ym9duGjX2Yzz

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe

description	pid	Process	procid_target
PID 4560 set thread context of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100

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:

d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exed8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe

description	pid	Process	procid_target
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100
PID 4560 wrote to memory of 8	4560	d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe	100

C:\Users\Admin\AppData\Local\Temp\d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe
"C:\Users\Admin\AppData\Local\Temp\d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Users\Admin\AppData\Local\Temp\d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe
  "C:\Users\Admin\AppData\Local\Temp\d8a9180da33ecaa39821ee77065c78cdf428a2c83afdbfa923e4db651b859961.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:8

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/8-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/8-17-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/8-16-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/8-15-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/8-13-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4560-4-0x00000000058E0000-0x00000000058EA000-memory.dmp

Filesize
40KB

Download
memory/4560-6-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4560-7-0x0000000005E90000-0x0000000005EAC000-memory.dmp

Filesize
112KB

Download
memory/4560-8-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/4560-9-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4560-10-0x0000000005350000-0x00000000053A4000-memory.dmp

Filesize
336KB

Download
memory/4560-5-0x0000000005BD0000-0x0000000005C6C000-memory.dmp

Filesize
624KB

Download
memory/4560-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/4560-14-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4560-3-0x0000000005930000-0x00000000059C2000-memory.dmp

Filesize
584KB

Download
memory/4560-2-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/4560-1-0x0000000000F90000-0x0000000001020000-memory.dmp

Filesize
576KB

Download