asyncrat | 525209de288e36bab56d3a19446249ffd067c8757b5d5870daa6a782b9567e74

Analysis

max time kernel
145s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:12

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General

Target

6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe
Size

359KB
MD5

940f934bbb0f83a1565250113e0b6bb5
SHA1

9de96f718f5fb4e0f9da17ca7c9a235244063e88
SHA256

6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff
SHA512

7a010a7621b71036f271f4fcb7d9b84d1162e45109931d5c27d2ed8a4aab0d21477e012a6c54eaea31b7aefaa6803209b79aaedae3f01f31c560d9bbc3b75e13
SSDEEP

6144:IUEkEIkj1Osfi2Owt0wJBzxmywv82bsmnEzeyZIxW/QwoBikWbz+/shAJhUI+dD:RXVYi2Om0kWywv82bsmse6KW/QwoBikN

Score

10^/10

asyncrat discovery execution rat

Malware Config

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4092	Powershell.exe

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

Web Service

T1102

flow	ioc
65	pastebin.com
66	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4084 set thread context of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103

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	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe
4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe
4092	Powershell.exe
4092	Powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe
Token: SeDebugPrivilege	4092	Powershell.exe
Token: SeDebugPrivilege	4632	AddInProcess32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4632	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	103
PID 4084 wrote to memory of 4092	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	104
PID 4084 wrote to memory of 4092	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	104
PID 4084 wrote to memory of 4092	4084	6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe	104

C:\Users\Admin\AppData\Local\Temp\6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe
"C:\Users\Admin\AppData\Local\Temp\6c25a9ad3a7149deae7bb50429c9fefe20b60a59914bd7b63174796b640adfff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4632
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Firefox\update.exe"'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aynxkajj.dmy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4084-6-0x00000000024B0000-0x00000000024BA000-memory.dmp

Filesize
40KB

Download
memory/4084-2-0x00000000024F0000-0x00000000024F6000-memory.dmp

Filesize
24KB

Download
memory/4084-3-0x000000000A860000-0x000000000AE04000-memory.dmp

Filesize
5.6MB

Download
memory/4084-5-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4084-4-0x000000000A350000-0x000000000A3E2000-memory.dmp

Filesize
584KB

Download
memory/4084-17-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4084-7-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/4084-8-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4084-9-0x00000000006C0000-0x000000000070E000-memory.dmp

Filesize
312KB

Download
memory/4084-10-0x0000000000AA0000-0x0000000000B06000-memory.dmp

Filesize
408KB

Download
memory/4084-11-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4084-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/4084-1-0x0000000000150000-0x00000000001B0000-memory.dmp

Filesize
384KB

Download
memory/4092-22-0x0000000005890000-0x00000000058B2000-memory.dmp

Filesize
136KB

Download
memory/4092-55-0x0000000007D80000-0x0000000007E16000-memory.dmp

Filesize
600KB

Download
memory/4092-19-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4092-63-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4092-20-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4092-21-0x00000000059E0000-0x0000000006008000-memory.dmp

Filesize
6.2MB

Download
memory/4092-28-0x0000000006100000-0x0000000006166000-memory.dmp

Filesize
408KB

Download
memory/4092-59-0x0000000007E40000-0x0000000007E5A000-memory.dmp

Filesize
104KB

Download
memory/4092-60-0x0000000007E20000-0x0000000007E28000-memory.dmp

Filesize
32KB

Download
memory/4092-33-0x00000000062E0000-0x0000000006634000-memory.dmp

Filesize
3.3MB

Download
memory/4092-34-0x00000000067C0000-0x00000000067DE000-memory.dmp

Filesize
120KB

Download
memory/4092-35-0x0000000006870000-0x00000000068BC000-memory.dmp

Filesize
304KB

Download
memory/4092-38-0x0000000070A90000-0x0000000070ADC000-memory.dmp

Filesize
304KB

Download
memory/4092-48-0x0000000006DB0000-0x0000000006DCE000-memory.dmp

Filesize
120KB

Download
memory/4092-49-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4092-50-0x00000000077D0000-0x0000000007873000-memory.dmp

Filesize
652KB

Download
memory/4092-37-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4092-36-0x0000000007790000-0x00000000077C2000-memory.dmp

Filesize
200KB

Download
memory/4092-51-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4092-52-0x0000000008140000-0x00000000087BA000-memory.dmp

Filesize
6.5MB

Download
memory/4092-53-0x0000000007B00000-0x0000000007B1A000-memory.dmp

Filesize
104KB

Download
memory/4092-54-0x0000000007B70000-0x0000000007B7A000-memory.dmp

Filesize
40KB

Download
memory/4092-18-0x0000000005210000-0x0000000005246000-memory.dmp

Filesize
216KB

Download
memory/4092-56-0x0000000007D00000-0x0000000007D11000-memory.dmp

Filesize
68KB

Download
memory/4092-57-0x0000000007D30000-0x0000000007D3E000-memory.dmp

Filesize
56KB

Download
memory/4092-58-0x0000000007D40000-0x0000000007D54000-memory.dmp

Filesize
80KB

Download
memory/4632-12-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4632-13-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4632-16-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4632-64-0x0000000005370000-0x000000000540C000-memory.dmp

Filesize
624KB

Download
memory/4632-65-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4632-66-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download