asyncrat | 0b34d688a6c36cf55e1c18d22523f62a7fba025cc2035e0c163abd50288ae539

Analysis

max time kernel
136s
max time network
139s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
04/06/2023, 15:38

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General

Target

YYY.exe
Size

294KB
MD5

62e48038a1105d8445b0f539b250a2ad
SHA1

f592671e524814bb585b61ecf3c6fea16c724ae8
SHA256

0b34d688a6c36cf55e1c18d22523f62a7fba025cc2035e0c163abd50288ae539
SHA512

3a8874013fa64019b80788d0f32054e59ee56ef8e25188a51026d562212473c6961b7be46eddda11d3babeeb463656ea7c43f48298cde8184a59373ef38a9393
SSDEEP

6144:XA2Q6m116ut7IBtDulkUcSEY0EWZOdnPtx2Tk5Kvj5:X5ObIBtxLSpXWYJPb2o5q

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6A

richard4545.loseyourip.com:6606

richard4545.loseyourip.com:7707

richard4545.loseyourip.com:8808

richard4545.loseyourip.com:3850

richard4545.loseyourip.com:3845

103.212.81.152:6606

103.212.81.152:7707

103.212.81.152:8808

103.212.81.152:3850

103.212.81.152:3845

Mutex

cccphnbynt

Attributes

delay
5
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 5 IoCs

rat

resource	yara_rule
behavioral1/memory/1496-58-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1496-59-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1496-61-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1496-63-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1496-65-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1160 set thread context of 1496	1160	YYY.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1496	Caspol.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1496	Caspol.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27
PID 1160 wrote to memory of 1496	1160	YYY.exe	27

C:\Users\Admin\AppData\Local\Temp\YYY.exe
"C:\Users\Admin\AppData\Local\Temp\YYY.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1496

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1160-54-0x0000000001040000-0x000000000108A000-memory.dmp

Filesize
296KB

Download
memory/1160-55-0x00000000008C0000-0x00000000008CA000-memory.dmp

Filesize
40KB

Download
memory/1496-56-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-57-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-58-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-59-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1496-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-63-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1496-66-0x0000000004C20000-0x0000000004C60000-memory.dmp

Filesize
256KB

Download
memory/1496-81-0x0000000004C20000-0x0000000004C60000-memory.dmp

Filesize
256KB

Download