asyncrat | c5634454eded38fdff4aa2966f68c4a969f705cd9ad266d48e169a12a66f8a77

Analysis

max time kernel
148s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19-02-2025 06:36

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General

Target

PO-VS037069410113706941011_19_02_25.exe
Size

938KB
MD5

d334528a305db04cd6c086958e317850
SHA1

7edd4e5013e541f81a84a3eb95f63c679c65197b
SHA256

c5634454eded38fdff4aa2966f68c4a969f705cd9ad266d48e169a12a66f8a77
SHA512

d6a9dcbe3f663d851e184e727676fb25ecc4e89c93225a7de282adf28464eb5df6764b720c01ec68177083849e56fde8a610e6fc4fd33396629de14f4204e83f
SSDEEP

6144:TM+EbbrRkif+eH2fES69xx8FZjATa3rcfwXJ8+3NWVQL0S+aNV1M9c0cPiQMWw2D:o+EbbrRBm+89mw1J/aQC2PqGvyrQ

Score

10^/10

asyncrat venomrat feb 19 logs discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

FEB 19 LOGS

Mutex

dbwxbwyzgarszgoi

Attributes

delay
1
install
false
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/93hjERwM

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Local\\hpusrutility.exe,"	reg.exe

VenomRAT 2 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral1/memory/1748-24-0x0000000000400000-0x0000000000418000-memory.dmp	VenomRAT
behavioral1/memory/1748-26-0x0000000000400000-0x0000000000418000-memory.dmp	VenomRAT

Venomrat family
venomrat

Executes dropped EXE 1 IoCs

pid	Process
3020	hpusrutility.exe

Loads dropped DLL 2 IoCs

pid	Process
2728	cmd.exe
2728	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	hpusrutility.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO-VS037069410113706941011_19_02_25.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2728	cmd.exe
2732	PING.EXE
3060	PING.EXE
2776	cmd.exe
2528	PING.EXE

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
2528	PING.EXE
2732	PING.EXE
3060	PING.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
432	PO-VS037069410113706941011_19_02_25.exe
432	PO-VS037069410113706941011_19_02_25.exe
432	PO-VS037069410113706941011_19_02_25.exe
432	PO-VS037069410113706941011_19_02_25.exe
3020	hpusrutility.exe
3020	hpusrutility.exe
3020	hpusrutility.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	PO-VS037069410113706941011_19_02_25.exe
Token: SeDebugPrivilege	3020	hpusrutility.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 2776	432	PO-VS037069410113706941011_19_02_25.exe	29
PID 432 wrote to memory of 2776	432	PO-VS037069410113706941011_19_02_25.exe	29
PID 432 wrote to memory of 2776	432	PO-VS037069410113706941011_19_02_25.exe	29
PID 432 wrote to memory of 2776	432	PO-VS037069410113706941011_19_02_25.exe	29
PID 2776 wrote to memory of 2528	2776	cmd.exe	31
PID 2776 wrote to memory of 2528	2776	cmd.exe	31
PID 2776 wrote to memory of 2528	2776	cmd.exe	31
PID 2776 wrote to memory of 2528	2776	cmd.exe	31
PID 432 wrote to memory of 2728	432	PO-VS037069410113706941011_19_02_25.exe	32
PID 432 wrote to memory of 2728	432	PO-VS037069410113706941011_19_02_25.exe	32
PID 432 wrote to memory of 2728	432	PO-VS037069410113706941011_19_02_25.exe	32
PID 432 wrote to memory of 2728	432	PO-VS037069410113706941011_19_02_25.exe	32
PID 2728 wrote to memory of 2732	2728	cmd.exe	34
PID 2728 wrote to memory of 2732	2728	cmd.exe	34
PID 2728 wrote to memory of 2732	2728	cmd.exe	34
PID 2728 wrote to memory of 2732	2728	cmd.exe	34
PID 2776 wrote to memory of 2736	2776	cmd.exe	35
PID 2776 wrote to memory of 2736	2776	cmd.exe	35
PID 2776 wrote to memory of 2736	2776	cmd.exe	35
PID 2776 wrote to memory of 2736	2776	cmd.exe	35
PID 2728 wrote to memory of 3060	2728	cmd.exe	36
PID 2728 wrote to memory of 3060	2728	cmd.exe	36
PID 2728 wrote to memory of 3060	2728	cmd.exe	36
PID 2728 wrote to memory of 3060	2728	cmd.exe	36
PID 2728 wrote to memory of 3020	2728	cmd.exe	37
PID 2728 wrote to memory of 3020	2728	cmd.exe	37
PID 2728 wrote to memory of 3020	2728	cmd.exe	37
PID 2728 wrote to memory of 3020	2728	cmd.exe	37
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38
PID 3020 wrote to memory of 1748	3020	hpusrutility.exe	38

C:\Users\Admin\AppData\Local\Temp\PO-VS037069410113706941011_19_02_25.exe
"C:\Users\Admin\AppData\Local\Temp\PO-VS037069410113706941011_19_02_25.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 37 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\hpusrutility.exe,"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 37
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2528
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\hpusrutility.exe,"
    3⤵
    - Modifies WinLogon for persistence
    - System Location Discovery: System Language Discovery
    PID:2736
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 42 > nul && copy "C:\Users\Admin\AppData\Local\Temp\PO-VS037069410113706941011_19_02_25.exe" "C:\Users\Admin\AppData\Local\hpusrutility.exe" && ping 127.0.0.1 -n 42 > nul && "C:\Users\Admin\AppData\Local\hpusrutility.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 42
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2732
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 42
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3060
- - C:\Users\Admin\AppData\Local\hpusrutility.exe
    "C:\Users\Admin\AppData\Local\hpusrutility.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3020
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      4⤵
      PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\hpusrutility.exe

Filesize
938KB

MD5
d334528a305db04cd6c086958e317850

SHA1
7edd4e5013e541f81a84a3eb95f63c679c65197b

SHA256
c5634454eded38fdff4aa2966f68c4a969f705cd9ad266d48e169a12a66f8a77

SHA512
d6a9dcbe3f663d851e184e727676fb25ecc4e89c93225a7de282adf28464eb5df6764b720c01ec68177083849e56fde8a610e6fc4fd33396629de14f4204e83f

Download Submit
memory/432-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/432-1-0x0000000001280000-0x000000000136C000-memory.dmp

Filesize
944KB

Download
memory/432-2-0x00000000002B0000-0x00000000002D6000-memory.dmp

Filesize
152KB

Download
memory/432-3-0x00000000749A0000-0x000000007508E000-memory.dmp

Filesize
6.9MB

Download
memory/432-4-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/432-5-0x00000000749A0000-0x000000007508E000-memory.dmp

Filesize
6.9MB

Download
memory/432-6-0x00000000749A0000-0x000000007508E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-22-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1748-21-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1748-24-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1748-26-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1748-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-18-0x00000000005C0000-0x00000000005DA000-memory.dmp

Filesize
104KB

Download
memory/3020-19-0x0000000001F60000-0x0000000001F66000-memory.dmp

Filesize
24KB

Download
memory/3020-17-0x0000000000160000-0x000000000024C000-memory.dmp

Filesize
944KB

Download