asyncrat | 150881bedbe73b815d87b588a69e7b1aaae37fba68f11b10b2fa4d553284447d

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 15:56

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General

Target

19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe
Size

6.7MB
MD5

5fcb89ff5f2331eca62218c7caff51ec
SHA1

1881f5aa444f06520d63336b874d9f31badcdf4f
SHA256

19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359
SHA512

e070334b93a4cd492ea52839c6c0df1723e7e735c09d92f718d04528b9ec1c00e4b2b226949034436cfeba03293ed677dbd973cc73fe06a8c00cf45154f606dd
SSDEEP

98304:MKa2BPltKXxfNUFFD+DFp5EfrIl1sjWZBDzJc6mRr+IbEQhjj9EsLFtosd8AJ:ZFltSjUFFD+Uo2jWZBvJ8cQhjBUsd8AJ

Score

10^/10

asyncrat 010-oct discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

010-Oct

doesnotkl.dynuddns.net:11206

Mutex

DcRatMutex_qyunchun

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31

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	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31
PID 2776 wrote to memory of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31
PID 2776 wrote to memory of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31
PID 2776 wrote to memory of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31
PID 2776 wrote to memory of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31
PID 2776 wrote to memory of 2652	2776	19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe	31

C:\Users\Admin\AppData\Local\Temp\19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe
"C:\Users\Admin\AppData\Local\Temp\19a00488730bc7785390df8887b925f58aa649defbeed9b4ed27a66d5f8b3359.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2652

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/2652-21-0x00000000743EE000-0x00000000743EF000-memory.dmp

Filesize
4KB

Download
memory/2652-24-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/2652-22-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/2652-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-11-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2652-14-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2652-18-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2652-8-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2776-19-0x0000000000B0B000-0x0000000000B3F000-memory.dmp

Filesize
208KB

Download
memory/2776-20-0x0000000000B13000-0x0000000000B3F000-memory.dmp

Filesize
176KB

Download
memory/2776-0-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-5-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-17-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-7-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-6-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-3-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-1-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-23-0x0000000000400000-0x0000000000B40000-memory.dmp

Filesize
7.2MB

Download
memory/2776-2-0x0000000000516000-0x000000000052F000-memory.dmp

Filesize
100KB

Download