asyncrat | aea4131bcafdd9c1e946b15b2df3d26e79e54a016abd5d8e0d6d034c4d282642

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 16:42

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General

Target

c09a226c0b3f242d0bb706678fe124c0N.exe
Size

1.7MB
MD5

c09a226c0b3f242d0bb706678fe124c0
SHA1

4836a0bfd5175284e01e4e7e116245e4d7e2ab25
SHA256

aea4131bcafdd9c1e946b15b2df3d26e79e54a016abd5d8e0d6d034c4d282642
SHA512

36569dbdeaa2eb233ed507f4cba5ee7ae6a59a524ec8e50cf76416943b85e3d2da60f1eaed41bae947c76e679526686b5947941d460092e305a467a4f9db7cf7
SSDEEP

24576:5SRgFeEWFKAtgvSjW6BD2ZiTO8dAi2o74Lq+gpBD9a:P

Score

10^/10

asyncrat carlos1 discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

Botnet

CARLOS1

carlos1.con-ip.com:6606

Mutex

uuooxuxbnkywum

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ngyqsuh = "C:\\Users\\Admin\\AppData\\Roaming\\Ngyqsuh.exe"	c09a226c0b3f242d0bb706678fe124c0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.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	c09a226c0b3f242d0bb706678fe124c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	c09a226c0b3f242d0bb706678fe124c0N.exe
Token: SeDebugPrivilege	1668	c09a226c0b3f242d0bb706678fe124c0N.exe
Token: SeDebugPrivilege	4212	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31
PID 1668 wrote to memory of 4212	1668	c09a226c0b3f242d0bb706678fe124c0N.exe	31

C:\Users\Admin\AppData\Local\Temp\c09a226c0b3f242d0bb706678fe124c0N.exe
"C:\Users\Admin\AppData\Local\Temp\c09a226c0b3f242d0bb706678fe124c0N.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4212

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

C:\Users\Admin\AppData\Local\Temp\CabF088.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1668-56-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-26-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-3-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-12-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-4-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-6-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-8-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-10-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-28-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-24-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-22-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-20-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-34-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-38-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-18-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-52-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-16-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-62-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-14-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-66-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-64-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-60-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-1-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/1668-58-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-46-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-50-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-48-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-54-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-44-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-42-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-40-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-36-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-32-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-30-0x0000000004AB0000-0x0000000004B85000-memory.dmp

Filesize
852KB

Download
memory/1668-2-0x0000000004AB0000-0x0000000004B8A000-memory.dmp

Filesize
872KB

Download
memory/1668-1039-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-1040-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-1041-0x0000000000BB0000-0x0000000000C0C000-memory.dmp

Filesize
368KB

Download
memory/1668-1042-0x0000000000C50000-0x0000000000C9C000-memory.dmp

Filesize
304KB

Download
memory/1668-1043-0x0000000000D20000-0x0000000000D74000-memory.dmp

Filesize
336KB

Download
memory/1668-1044-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-0-0x00000000013C0000-0x0000000001574000-memory.dmp

Filesize
1.7MB

Download
memory/1668-1062-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/4212-1063-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/4212-1064-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/4212-1061-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4212-1081-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads