asyncrat | f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 14:40

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General

Target

f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe
Size

17KB
MD5

052b465678e55a597727235381e0a7de
SHA1

e81a1b6f7c41994265c891b61ca549dc1bd95d25
SHA256

f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a
SHA512

49e000b0775bb976153c25ae7dc42a24bc3f1e3158d4770af8bf0d4c6f564c8bccb966279ee296b5a3db8c791cd04219f3ad7c62f2825957f66df69a0e5b28cb
SSDEEP

384:kEGfInKqgn7PiAniAAAeXWLMN8GuTM0sg7UAmm6+5qZMXBNTV76fAw:kZfyU76AniAAAdJsCDXBNTpPw

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

192.168.1.104:8848

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 720 set thread context of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 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	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe
720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 3140	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	83
PID 720 wrote to memory of 3140	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	83
PID 720 wrote to memory of 3140	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	83
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84
PID 720 wrote to memory of 2196	720	f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe	84

C:\Users\Admin\AppData\Local\Temp\f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe
"C:\Users\Admin\AppData\Local\Temp\f3b264fddb4da99f002daa68859146f73cf1b1d55e98355b9f1c3a2254bda94a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:720
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:3140
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2196

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

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Downloads

memory/720-0-0x00007FFCC2293000-0x00007FFCC2295000-memory.dmp

Filesize
8KB

Download
memory/720-1-0x00000242E3EB0000-0x00000242E3EB8000-memory.dmp

Filesize
32KB

Download
memory/720-2-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/720-5-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/2196-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2196-6-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/2196-7-0x0000000000890000-0x00000000008D0000-memory.dmp

Filesize
256KB

Download
memory/2196-8-0x0000000002D40000-0x0000000002D5A000-memory.dmp

Filesize
104KB

Download
memory/2196-9-0x0000000005360000-0x00000000054BA000-memory.dmp

Filesize
1.4MB

Download
memory/2196-11-0x00000000744E0000-0x0000000074C90000-memory.dmp

Filesize
7.7MB

Download
memory/2196-12-0x00000000744E0000-0x0000000074C90000-memory.dmp

Filesize
7.7MB

Download