asyncrat | 711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4b

Analysis

max time kernel
115s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/01/2025, 13:56

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General

Target

711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
Size

62KB
MD5

7a648df051fe2ea64a48e838db113c60
SHA1

87ba0603b30ce10039740ac5809190e9f5dc4633
SHA256

711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4b
SHA512

c99ff7819e070ff5528096dfc86c026493d5213899ef1da8e23b8ec08da3c923d3a5d6c09a5892b222c65dc52723c9590ec2df6e709386fa1ed81e6a925b2854
SSDEEP

1536:pJjgqykF6I7/JbaFUBfN1Aam3v6kYLcMWB9bRW9fY8jr4dDxRWOT:XgqfFzbJbaF4N1AasvzYC09Njr4d/WOT

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

Y9gIvXtEyJsV

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

description	pid	Process	procid_target
PID 1740 set thread context of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89
PID 1740 wrote to memory of 2508	1740	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	89

C:\Users\Admin\AppData\Local\Temp\711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
"C:\Users\Admin\AppData\Local\Temp\711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2508

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/1740-8-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1740-9-0x0000000004E70000-0x0000000004E84000-memory.dmp

Filesize
80KB

Download
memory/1740-2-0x0000000005190000-0x0000000005734000-memory.dmp

Filesize
5.6MB

Download
memory/1740-3-0x0000000004CD0000-0x0000000004D62000-memory.dmp

Filesize
584KB

Download
memory/1740-4-0x0000000004E80000-0x0000000004E8A000-memory.dmp

Filesize
40KB

Download
memory/1740-5-0x0000000004F70000-0x0000000004FE6000-memory.dmp

Filesize
472KB

Download
memory/1740-6-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1740-7-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/1740-1-0x00000000002D0000-0x00000000002E6000-memory.dmp

Filesize
88KB

Download
memory/1740-10-0x0000000004FF0000-0x000000000500E000-memory.dmp

Filesize
120KB

Download
memory/1740-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/1740-13-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2508-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2508-14-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2508-15-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2508-16-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2508-17-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download