asyncrat | 51c2ce9149de3db70b215296b809528da5b3adbf79d8dcbd67d24e7f4cbbf28f

Analysis

max time kernel
137s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2025, 02:39

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General

Target

51c2ce9149de3db70b215296b809528da5b3adbf79d8dcbd67d24e7f4cbbf28f.ps1
Size

463KB
MD5

a0566a1037f123125a5a2ce8efcb166e
SHA1

09e1c8520bce65ba13c5bb14aad4f04e6cad6da3
SHA256

51c2ce9149de3db70b215296b809528da5b3adbf79d8dcbd67d24e7f4cbbf28f
SHA512

cf80eb3483305b93c827c51fe422715af41d197cede82bd297ed8393ea5db66cc98279e0048f66992344e84b479e8db632d93a462905f5c8bc0786a0708b521f
SSDEEP

3072:JjHXlNuE+NPVFL2bUCUrNlKomLJVlCsspIF:JjqE+NPVFL2bUCUrNlKomLJVlCsspIF

Score

10^/10

asyncrat 00000001 discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

00000001

81.10.39.58:7077

Mutex

AsyncMutex_alosh

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
18	3472	powershell.exe
20	3472	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3472	powershell.exe
2172	powershell.exe
1892	powershell.exe
2712	powershell.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	WScript.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	api.ipify.org
18	api.ipify.org

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 2440	2172	powershell.exe	92
PID 1892 set thread context of 2180	1892	powershell.exe	106
PID 2712 set thread context of 2852	2712	powershell.exe	122

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3472	powershell.exe
3472	powershell.exe
2172	powershell.exe
2172	powershell.exe
2440	aspnet_compiler.exe
1892	powershell.exe
1892	powershell.exe
1892	powershell.exe
1892	powershell.exe
2712	powershell.exe
2712	powershell.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	3472	powershell.exe
Token: SeIncreaseQuotaPrivilege	3472	powershell.exe
Token: SeSecurityPrivilege	3472	powershell.exe
Token: SeTakeOwnershipPrivilege	3472	powershell.exe
Token: SeLoadDriverPrivilege	3472	powershell.exe
Token: SeSystemProfilePrivilege	3472	powershell.exe
Token: SeSystemtimePrivilege	3472	powershell.exe
Token: SeProfSingleProcessPrivilege	3472	powershell.exe
Token: SeIncBasePriorityPrivilege	3472	powershell.exe
Token: SeCreatePagefilePrivilege	3472	powershell.exe
Token: SeBackupPrivilege	3472	powershell.exe
Token: SeRestorePrivilege	3472	powershell.exe
Token: SeShutdownPrivilege	3472	powershell.exe
Token: SeDebugPrivilege	3472	powershell.exe
Token: SeSystemEnvironmentPrivilege	3472	powershell.exe
Token: SeRemoteShutdownPrivilege	3472	powershell.exe
Token: SeUndockPrivilege	3472	powershell.exe
Token: SeManageVolumePrivilege	3472	powershell.exe
Token: 33	3472	powershell.exe
Token: 34	3472	powershell.exe
Token: 35	3472	powershell.exe
Token: 36	3472	powershell.exe
Token: SeIncreaseQuotaPrivilege	3472	powershell.exe
Token: SeSecurityPrivilege	3472	powershell.exe
Token: SeTakeOwnershipPrivilege	3472	powershell.exe
Token: SeLoadDriverPrivilege	3472	powershell.exe
Token: SeSystemProfilePrivilege	3472	powershell.exe
Token: SeSystemtimePrivilege	3472	powershell.exe
Token: SeProfSingleProcessPrivilege	3472	powershell.exe
Token: SeIncBasePriorityPrivilege	3472	powershell.exe
Token: SeCreatePagefilePrivilege	3472	powershell.exe
Token: SeBackupPrivilege	3472	powershell.exe
Token: SeRestorePrivilege	3472	powershell.exe
Token: SeShutdownPrivilege	3472	powershell.exe
Token: SeDebugPrivilege	3472	powershell.exe
Token: SeSystemEnvironmentPrivilege	3472	powershell.exe
Token: SeRemoteShutdownPrivilege	3472	powershell.exe
Token: SeUndockPrivilege	3472	powershell.exe
Token: SeManageVolumePrivilege	3472	powershell.exe
Token: 33	3472	powershell.exe
Token: 34	3472	powershell.exe
Token: 35	3472	powershell.exe
Token: 36	3472	powershell.exe
Token: SeDebugPrivilege	2172	powershell.exe
Token: SeDebugPrivilege	2440	aspnet_compiler.exe
Token: SeDebugPrivilege	1892	powershell.exe
Token: SeDebugPrivilege	2712	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2440	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 1532	4532	WScript.exe	86
PID 4532 wrote to memory of 1532	4532	WScript.exe	86
PID 1532 wrote to memory of 4248	1532	net.exe	88
PID 1532 wrote to memory of 4248	1532	net.exe	88
PID 4532 wrote to memory of 2236	4532	WScript.exe	89
PID 4532 wrote to memory of 2236	4532	WScript.exe	89
PID 2236 wrote to memory of 2172	2236	cmd.exe	91
PID 2236 wrote to memory of 2172	2236	cmd.exe	91
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 2172 wrote to memory of 2440	2172	powershell.exe	92
PID 4500 wrote to memory of 452	4500	WScript.exe	99
PID 4500 wrote to memory of 452	4500	WScript.exe	99
PID 452 wrote to memory of 532	452	net.exe	101
PID 452 wrote to memory of 532	452	net.exe	101
PID 4500 wrote to memory of 4908	4500	WScript.exe	102
PID 4500 wrote to memory of 4908	4500	WScript.exe	102
PID 4908 wrote to memory of 1892	4908	cmd.exe	104
PID 4908 wrote to memory of 1892	4908	cmd.exe	104
PID 1892 wrote to memory of 1376	1892	powershell.exe	105
PID 1892 wrote to memory of 1376	1892	powershell.exe	105
PID 1892 wrote to memory of 1376	1892	powershell.exe	105
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 1892 wrote to memory of 2180	1892	powershell.exe	106
PID 4952 wrote to memory of 400	4952	WScript.exe	116
PID 4952 wrote to memory of 400	4952	WScript.exe	116
PID 400 wrote to memory of 3020	400	net.exe	118
PID 400 wrote to memory of 3020	400	net.exe	118
PID 4952 wrote to memory of 3972	4952	WScript.exe	119
PID 4952 wrote to memory of 3972	4952	WScript.exe	119
PID 3972 wrote to memory of 2712	3972	cmd.exe	121
PID 3972 wrote to memory of 2712	3972	cmd.exe	121
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122
PID 2712 wrote to memory of 2852	2712	powershell.exe	122

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\51c2ce9149de3db70b215296b809528da5b3adbf79d8dcbd67d24e7f4cbbf28f.ps1
1⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3472

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\Music\1asrjDI783.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1532
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:4248
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Music\1asrjDI783.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\Music\1asrjDI783.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2172
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2440

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\Music\1asrjDI783.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:532
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Music\1asrjDI783.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\Music\1asrjDI783.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1892
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:1376
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2180

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\Music\1asrjDI783.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:400
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:3020
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Music\1asrjDI783.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3972
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\Music\1asrjDI783.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2712
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
81d91bab2fdd72436e4852d94ea7650d

SHA1
5652b3c46a0cf75a03859c5707f36fb08f5c631a

SHA256
68a3392780a3c6219350a2ca51262a74a2a9d6a1ea84686f38d473f37d0588e1

SHA512
df1e3da61c9657a7f0c0eac9ce610798421e138259ec2bf41063b8e8eb8e1c9e6d669aaba675ba16ccdceed1aa3f76b482893dc98f3d6b46cd48d61da7669268

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\aspnet_compiler.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
32b5bb75b20cb77f102203c5c4a71d55

SHA1
b06326869f513d570854cda05ca51deaa2ca5a2c

SHA256
05b161df52113eb973ecb0f436aeb9544632b47628ffd8ab1ff451c52569d6f5

SHA512
420598d26103fead96d699cf6fdf5c95f244dbee71b6173dde0a36e42981a028ab41852947f3dc64c3b3cc4da8e41ab898e31c4706b1f4f0b579aa8af2fcc841

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
9704dd4f902d5613ddee53329d08e52b

SHA1
2b4075ba3dac45d60ac238293a15d3f381aed457

SHA256
160886ef16b948c0d3e5e89bd81d371aa7cd33d89c3174dada178cb4deeeb13e

SHA512
e9234f26d07f8c4681d5a269bca7721b803645ec20b81fc8d623ce35f97fd09869d9f4b2a8d7f6159ae2d43c36998ba2a42a3e031221ed546e430817c335d680

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vbg23yws.2h1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\Music\1asrjDI783.bat

Filesize
2KB

MD5
11e5bd60f47cabd544689686e90ec983

SHA1
a0c50c6ce6fb1c76a49ad3b7473ae115a9473586

SHA256
796359f255098ba6f1aeb601bee332c499f6480bf8268eba81c8afa2e406bf03

SHA512
4c7e178fa8683d2e4f4e7876cb7564e81d209e459f91cc4dda45482f17ceacbe6c1fbc08dd77afec854f9c6d4e2882867a27786e88ca9785162c70130a5f938c

Download Submit
C:\Users\Public\Music\1asrjDI783.ps1

Filesize
453KB

MD5
c898ca5977afbf542dbccf9bcd3fdec7

SHA1
03deac6e826609b94f92e202ae19058268adb3ac

SHA256
d8527365ff27229d55b5033c6acedd6288ede1713ebd02d7e6d67c7949310074

SHA512
9c56fab5e5c0f4d5d79b21e8ba17fc7835d176d300fb6af30809fc7c6ff97083d3ec0af0e93918ff58cc45f45ca0c2d9bc9d26ddc702aa3abfb96822c8250ffa

Download Submit
C:\Users\Public\Music\1asrjDI783.vbs

Filesize
4KB

MD5
6a982f2ddd0049ae0aeae977a423b777

SHA1
b595d62a2d62817f0f2128d5587e2efac3bee8dc

SHA256
119ca11e66b8d4a45cda8085ae6664b25fbffe0486b7080c4405254dda8166a7

SHA512
44ae539ff8133189a0305cb8645fe37b7dbd11e737cf39ee4569ba3e13b0d31401f0fc3fbe827039687f3c987bd423e6a006436d93554b28c76f1f9e2db81da5

Download Submit
memory/2172-31-0x0000020802600000-0x000002080260C000-memory.dmp

Filesize
48KB

Download
memory/2440-35-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download
memory/2440-37-0x0000000005530000-0x000000000553A000-memory.dmp

Filesize
40KB

Download
memory/2440-36-0x0000000005560000-0x00000000055F2000-memory.dmp

Filesize
584KB

Download
memory/2440-32-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3472-18-0x00007FFB66540000-0x00007FFB67001000-memory.dmp

Filesize
10.8MB

Download
memory/3472-38-0x00007FFB66543000-0x00007FFB66545000-memory.dmp

Filesize
8KB

Download
memory/3472-39-0x00007FFB66540000-0x00007FFB67001000-memory.dmp

Filesize
10.8MB

Download
memory/3472-0-0x00007FFB66543000-0x00007FFB66545000-memory.dmp

Filesize
8KB

Download
memory/3472-16-0x00007FFB66540000-0x00007FFB67001000-memory.dmp

Filesize
10.8MB

Download
memory/3472-53-0x000001DCE0630000-0x000001DCE07F2000-memory.dmp

Filesize
1.8MB

Download
memory/3472-54-0x00007FFB66540000-0x00007FFB67001000-memory.dmp

Filesize
10.8MB

Download
memory/3472-55-0x000001DCE0D30000-0x000001DCE1258000-memory.dmp

Filesize
5.2MB

Download
memory/3472-11-0x00007FFB66540000-0x00007FFB67001000-memory.dmp

Filesize
10.8MB

Download
memory/3472-58-0x00007FFB66540000-0x00007FFB67001000-memory.dmp

Filesize
10.8MB

Download
memory/3472-6-0x000001DCDFED0000-0x000001DCDFEF2000-memory.dmp

Filesize
136KB

Download