asyncrat | 89bb879c72817b511d415cef263f4303784a3f8737a6bbf2b745887522b46ed6

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-02-2025 02:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

AsyncRAT-89bb879c72817b511d415cef263f4303784a3f8737a6bbf2b745887522b46ed6.ps1
Size

279KB
MD5

9749e46693091c6de695c31006ac7795
SHA1

1170a294b8ace6633ae6154141151c15fe516095
SHA256

89bb879c72817b511d415cef263f4303784a3f8737a6bbf2b745887522b46ed6
SHA512

6ed8f03a7d8b38c013ae79abd937c3d662d87803ee56272ed239f43573ef905b1b58a2448de9fb691a2380efca74f935f76422c2267d2bb108329610b3f4cb81
SSDEEP

1536:6qzQRWW6wFEaeQ4pxff1C31i+XL2NXxtIVBM5ryOPe7:j4nLixtN+qd3y3

Score

10^/10

asyncrat stormkitty execution rat stealer

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0004000000004ed7-26.dat	family_stormkitty
behavioral1/memory/376-29-0x0000000000E20000-0x0000000001124000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0004000000004ed7-26.dat	family_asyncrat

Downloads MZ/PE file 1 IoCs

flow	pid	Process
4	2252	x.exe

Executes dropped EXE 2 IoCs

pid	Process
2252	x.exe
376	RegAAsm.exe

Loads dropped DLL 1 IoCs

pid	Process
1868	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1868	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1868	powershell.exe
1868	powershell.exe
1868	powershell.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	powershell.exe
Token: SeDebugPrivilege	2252	x.exe
Token: SeDebugPrivilege	376	RegAAsm.exe
Token: SeIncreaseQuotaPrivilege	376	RegAAsm.exe
Token: SeSecurityPrivilege	376	RegAAsm.exe
Token: SeTakeOwnershipPrivilege	376	RegAAsm.exe
Token: SeLoadDriverPrivilege	376	RegAAsm.exe
Token: SeSystemProfilePrivilege	376	RegAAsm.exe
Token: SeSystemtimePrivilege	376	RegAAsm.exe
Token: SeProfSingleProcessPrivilege	376	RegAAsm.exe
Token: SeIncBasePriorityPrivilege	376	RegAAsm.exe
Token: SeCreatePagefilePrivilege	376	RegAAsm.exe
Token: SeBackupPrivilege	376	RegAAsm.exe
Token: SeRestorePrivilege	376	RegAAsm.exe
Token: SeShutdownPrivilege	376	RegAAsm.exe
Token: SeDebugPrivilege	376	RegAAsm.exe
Token: SeSystemEnvironmentPrivilege	376	RegAAsm.exe
Token: SeRemoteShutdownPrivilege	376	RegAAsm.exe
Token: SeUndockPrivilege	376	RegAAsm.exe
Token: SeManageVolumePrivilege	376	RegAAsm.exe
Token: 33	376	RegAAsm.exe
Token: 34	376	RegAAsm.exe
Token: 35	376	RegAAsm.exe
Token: SeIncreaseQuotaPrivilege	376	RegAAsm.exe
Token: SeSecurityPrivilege	376	RegAAsm.exe
Token: SeTakeOwnershipPrivilege	376	RegAAsm.exe
Token: SeLoadDriverPrivilege	376	RegAAsm.exe
Token: SeSystemProfilePrivilege	376	RegAAsm.exe
Token: SeSystemtimePrivilege	376	RegAAsm.exe
Token: SeProfSingleProcessPrivilege	376	RegAAsm.exe
Token: SeIncBasePriorityPrivilege	376	RegAAsm.exe
Token: SeCreatePagefilePrivilege	376	RegAAsm.exe
Token: SeBackupPrivilege	376	RegAAsm.exe
Token: SeRestorePrivilege	376	RegAAsm.exe
Token: SeShutdownPrivilege	376	RegAAsm.exe
Token: SeDebugPrivilege	376	RegAAsm.exe
Token: SeSystemEnvironmentPrivilege	376	RegAAsm.exe
Token: SeRemoteShutdownPrivilege	376	RegAAsm.exe
Token: SeUndockPrivilege	376	RegAAsm.exe
Token: SeManageVolumePrivilege	376	RegAAsm.exe
Token: 33	376	RegAAsm.exe
Token: 34	376	RegAAsm.exe
Token: 35	376	RegAAsm.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 2252	1868	powershell.exe	29
PID 1868 wrote to memory of 2252	1868	powershell.exe	29
PID 1868 wrote to memory of 2252	1868	powershell.exe	29
PID 2252 wrote to memory of 376	2252	x.exe	32
PID 2252 wrote to memory of 376	2252	x.exe	32
PID 2252 wrote to memory of 376	2252	x.exe	32

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\AsyncRAT-89bb879c72817b511d415cef263f4303784a3f8737a6bbf2b745887522b46ed6.ps1
1⤵
- Loads dropped DLL
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Users\Admin\AppData\Local\Temp\x.exe
  "C:\Users\Admin\AppData\Local\Temp\x.exe"
  2⤵
  - Downloads MZ/PE file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Users\Admin\AppData\Local\Temp\RegAAsm.exe
    "C:\Users\Admin\AppData\Local\Temp\RegAAsm.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:376

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RegAAsm.exe

Filesize
3.0MB

MD5
8f46c856f33bbb279be7a0726f15016b

SHA1
d53277431505498980f1e460f7fcbb6e5f56b98d

SHA256
7b77cc567a3c5e8a31e8abe7404bc2b39198e51d4b3adae736caf5fbe484e2a6

SHA512
4b0bf3fb9b17e7f194c7ae890ebc2946b0b906223c232d2286d9496c4706622ba83a182d492f6810d275a495bbbe40ab15b3a145e552c916be25e7bc6fc4d6f3

Download Submit
\Users\Admin\AppData\Local\Temp\x.exe

Filesize
209KB

MD5
c59d7ad9d1de2e41e6f68fc609ed8e2d

SHA1
b6be54300bd6c9ae645bb54f9aa2aa4a5797421c

SHA256
03105bebe53f8a08eebef0f57ff59d2b57ad790691cd819325458e1a5bfadd05

SHA512
d58cee90a4e45f2c5d5c3c3011e08d9e91fa34bb39e234e88744c6aa6a1b963f2021e6c2c22fdcf38fde43b0e3bf9c5c036b1e8f11849243a1a27b802d90e653

Download Submit
memory/376-29-0x0000000000E20000-0x0000000001124000-memory.dmp

Filesize
3.0MB

Download
memory/1868-5-0x000000001B7F0000-0x000000001BAD2000-memory.dmp

Filesize
2.9MB

Download
memory/1868-7-0x000007FEF54E0000-0x000007FEF5E7D000-memory.dmp

Filesize
9.6MB

Download
memory/1868-8-0x000007FEF54E0000-0x000007FEF5E7D000-memory.dmp

Filesize
9.6MB

Download
memory/1868-6-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/1868-10-0x000007FEF54E0000-0x000007FEF5E7D000-memory.dmp

Filesize
9.6MB

Download
memory/1868-9-0x000007FEF54E0000-0x000007FEF5E7D000-memory.dmp

Filesize
9.6MB

Download
memory/1868-4-0x000007FEF579E000-0x000007FEF579F000-memory.dmp

Filesize
4KB

Download
memory/1868-19-0x000007FEF54E0000-0x000007FEF5E7D000-memory.dmp

Filesize
9.6MB

Download
memory/2252-17-0x000007FEED793000-0x000007FEED794000-memory.dmp

Filesize
4KB

Download
memory/2252-21-0x000007FEED793000-0x000007FEED794000-memory.dmp

Filesize
4KB

Download
memory/2252-22-0x000007FEED790000-0x000007FEEE17C000-memory.dmp

Filesize
9.9MB

Download
memory/2252-20-0x000007FEED790000-0x000007FEEE17C000-memory.dmp

Filesize
9.9MB

Download
memory/2252-18-0x000000013F340000-0x000000013F37A000-memory.dmp

Filesize
232KB

Download
memory/2252-28-0x000007FEED790000-0x000007FEEE17C000-memory.dmp

Filesize
9.9MB

Download