asyncrat | 6322d14ec5869367ae5b64fa81eb5958371640fdaa0dac6d5dcdfea35925cf94

Analysis

max time kernel
14s
max time network
24s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-11-2024 17:14

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General

Target

Estado_Legal.N°8366723..exe
Size

3.6MB
MD5

b1bedb0da4d8ac6629fa5c565788f299
SHA1

170c2308092053a57af5ea06477fb4338c7e792a
SHA256

6322d14ec5869367ae5b64fa81eb5958371640fdaa0dac6d5dcdfea35925cf94
SHA512

5b0f8af764d8431218894eba38378b16faa300f867a8e54e71cd4372d8f97528d60d47d133918ce5ae9a4c4208fb6df2804f0676208d5037a4be16d6f40349c1
SSDEEP

49152:tWGtLBcXqckrR6SVb8kq4pgquLMMji4NYxtJpkxhGjI4Tbm333geTIhiqyANPDLN:3tLuBVqgwh4NYxtJpkxhG0333geTKJvZ

Score

10^/10

asyncrat solo-domi-oros discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Solo-Domi-Oros

procesosespeciales855.casacam.net:8853

Mutex

DcRatMutex_qwqdanchun

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
Asyncrat family
asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Estado_Legal.N°8366723..exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\LilyDesignerEditor = "C:\\Users\\Admin\\Music\\LilyDesignerUpdater\\LilyConvertVideo.exe"	Estado_Legal.N°8366723..exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Estado_Legal.N°8366723..exe

description pid process target process

PID 1400 set thread context of 2816 1400 Estado_Legal.N°8366723..exe csc.exe

description	pid	process	target process
PID 1400 set thread context of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe

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:

Estado_Legal.N°8366723..execsc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Estado_Legal.N°8366723..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Estado_Legal.N°8366723..exe

description	pid	process	target process
PID 1400 wrote to memory of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe
PID 1400 wrote to memory of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe
PID 1400 wrote to memory of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe
PID 1400 wrote to memory of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe
PID 1400 wrote to memory of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe
PID 1400 wrote to memory of 2816	1400	Estado_Legal.N°8366723..exe	csc.exe

C:\Users\Admin\AppData\Local\Temp\Estado_Legal.N°8366723..exe
"C:\Users\Admin\AppData\Local\Temp\Estado_Legal.N°8366723..exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
2⤵
- System Location Discovery: System Language Discovery
PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/1400-12-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/1400-18-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/1400-4-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/1400-5-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/1400-7-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/1400-8-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/1400-2-0x0000000000510000-0x0000000000528000-memory.dmp

Filesize
96KB

Download
memory/1400-0-0x0000000000400000-0x00000000007A3000-memory.dmp

Filesize
3.6MB

Download
memory/2816-17-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2816-9-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2816-15-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2816-19-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/2816-11-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2816-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-20-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download