asyncrat | 8c1a00e02263f2e8fdc7e04a3037bbad020006319d569162452aa9d616fa4ee7

Analysis

max time kernel
154s
max time network
143s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 14:27

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General

Target

URFT06GSBAWRP_001_PDF.exe
Size

300.0MB
MD5

464753cd8a6523de0fba921ce6846177
SHA1

6b3b77af1129f9ad86acc31163d8450eacb4dbd3
SHA256

3221a50204afcf59f4a836680d1e484903ac3aa389c2105d059efc51b8461092
SHA512

589d0919ddf11d1e8e8eff15a0f78623742e5ab6b16e2b754f519f3bfc7912ccd6c43ad5ffe5c0e11c315f9835936b6b2039dc579527d50cb25333844b0876f2
SSDEEP

3072:1iJZ3k2p8jrvVIYkwur2JMBZ6kINhCRFuaABOUEs64BRg40nOFblHTgr4:1OyRr9u1KJkZ6dIYBUeBRgOlWU

Score

10^/10

asyncrat venom clients discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT 5.0.5

Botnet

Venom Clients

resulttoday2.duckdns.org:6111

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2968	opetr.exe
1800	opetr.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 2968 set thread context of 1680	2968	opetr.exe	43

System Location Discovery: System Language Discovery 1 TTPs 11 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	opetr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	URFT06GSBAWRP_001_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	opetr.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2700	schtasks.exe
572	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2696	vbc.exe
Token: SeDebugPrivilege	1680	vbc.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2976	3032	URFT06GSBAWRP_001_PDF.exe	30
PID 3032 wrote to memory of 2976	3032	URFT06GSBAWRP_001_PDF.exe	30
PID 3032 wrote to memory of 2976	3032	URFT06GSBAWRP_001_PDF.exe	30
PID 3032 wrote to memory of 2976	3032	URFT06GSBAWRP_001_PDF.exe	30
PID 2976 wrote to memory of 2700	2976	cmd.exe	32
PID 2976 wrote to memory of 2700	2976	cmd.exe	32
PID 2976 wrote to memory of 2700	2976	cmd.exe	32
PID 2976 wrote to memory of 2700	2976	cmd.exe	32
PID 3032 wrote to memory of 2884	3032	URFT06GSBAWRP_001_PDF.exe	33
PID 3032 wrote to memory of 2884	3032	URFT06GSBAWRP_001_PDF.exe	33
PID 3032 wrote to memory of 2884	3032	URFT06GSBAWRP_001_PDF.exe	33
PID 3032 wrote to memory of 2884	3032	URFT06GSBAWRP_001_PDF.exe	33
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 3032 wrote to memory of 2696	3032	URFT06GSBAWRP_001_PDF.exe	35
PID 836 wrote to memory of 2968	836	taskeng.exe	37
PID 836 wrote to memory of 2968	836	taskeng.exe	37
PID 836 wrote to memory of 2968	836	taskeng.exe	37
PID 836 wrote to memory of 2968	836	taskeng.exe	37
PID 2968 wrote to memory of 580	2968	opetr.exe	38
PID 2968 wrote to memory of 580	2968	opetr.exe	38
PID 2968 wrote to memory of 580	2968	opetr.exe	38
PID 2968 wrote to memory of 580	2968	opetr.exe	38
PID 2968 wrote to memory of 332	2968	opetr.exe	40
PID 2968 wrote to memory of 332	2968	opetr.exe	40
PID 2968 wrote to memory of 332	2968	opetr.exe	40
PID 2968 wrote to memory of 332	2968	opetr.exe	40
PID 580 wrote to memory of 572	580	cmd.exe	41
PID 580 wrote to memory of 572	580	cmd.exe	41
PID 580 wrote to memory of 572	580	cmd.exe	41
PID 580 wrote to memory of 572	580	cmd.exe	41
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 2968 wrote to memory of 1680	2968	opetr.exe	43
PID 836 wrote to memory of 1800	836	taskeng.exe	44
PID 836 wrote to memory of 1800	836	taskeng.exe	44
PID 836 wrote to memory of 1800	836	taskeng.exe	44
PID 836 wrote to memory of 1800	836	taskeng.exe	44

C:\Users\Admin\AppData\Local\Temp\URFT06GSBAWRP_001_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\URFT06GSBAWRP_001_PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\opetr.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\opetr.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\URFT06GSBAWRP_001_PDF.exe" "C:\Users\Admin\AppData\Roaming\opetr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2696

C:\Windows\system32\taskeng.exe
taskeng.exe {BB519A60-6AB2-417F-948F-51C821282FFD} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Users\Admin\AppData\Roaming\opetr.exe
  C:\Users\Admin\AppData\Roaming\opetr.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\opetr.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:580
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\opetr.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:572
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\opetr.exe" "C:\Users\Admin\AppData\Roaming\opetr.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:332
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1680
- C:\Users\Admin\AppData\Roaming\opetr.exe
  C:\Users\Admin\AppData\Roaming\opetr.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1680-34-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2696-12-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2696-18-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2696-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2696-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2696-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2696-15-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2968-24-0x0000000001170000-0x00000000011A2000-memory.dmp

Filesize
200KB

Download
memory/3032-2-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-4-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-3-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/3032-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/3032-21-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-1-0x00000000012D0000-0x0000000001302000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads