asyncrat | 613a23dadd6cf4ddfe08a56b7f13f3c83b1a0ef2dba918539ec0d4003f9c06dd

Analysis

max time kernel
146s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05/11/2024, 13:30

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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
2668	opetr.exe
2212	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 3264 set thread context of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 2668 set thread context of 1824	2668	opetr.exe	118

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	vbc.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	vbc.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	opetr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	URFT06GSBAWRP_001_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	opetr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2132	schtasks.exe
1092	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	vbc.exe
Token: SeDebugPrivilege	1824	vbc.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 3264 wrote to memory of 1980	3264	URFT06GSBAWRP_001_PDF.exe	97
PID 3264 wrote to memory of 1980	3264	URFT06GSBAWRP_001_PDF.exe	97
PID 3264 wrote to memory of 1980	3264	URFT06GSBAWRP_001_PDF.exe	97
PID 1980 wrote to memory of 1092	1980	cmd.exe	99
PID 1980 wrote to memory of 1092	1980	cmd.exe	99
PID 1980 wrote to memory of 1092	1980	cmd.exe	99
PID 3264 wrote to memory of 4560	3264	URFT06GSBAWRP_001_PDF.exe	100
PID 3264 wrote to memory of 4560	3264	URFT06GSBAWRP_001_PDF.exe	100
PID 3264 wrote to memory of 4560	3264	URFT06GSBAWRP_001_PDF.exe	100
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 3264 wrote to memory of 2276	3264	URFT06GSBAWRP_001_PDF.exe	102
PID 2668 wrote to memory of 2456	2668	opetr.exe	113
PID 2668 wrote to memory of 2456	2668	opetr.exe	113
PID 2668 wrote to memory of 2456	2668	opetr.exe	113
PID 2668 wrote to memory of 1232	2668	opetr.exe	115
PID 2668 wrote to memory of 1232	2668	opetr.exe	115
PID 2668 wrote to memory of 1232	2668	opetr.exe	115
PID 2456 wrote to memory of 2132	2456	cmd.exe	117
PID 2456 wrote to memory of 2132	2456	cmd.exe	117
PID 2456 wrote to memory of 2132	2456	cmd.exe	117
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118
PID 2668 wrote to memory of 1824	2668	opetr.exe	118

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:3264
- 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:1980
- - 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:1092
- 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:4560
- 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:2276

C:\Users\Admin\AppData\Roaming\opetr.exe
C:\Users\Admin\AppData\Roaming\opetr.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- 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:2456
- - 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:2132
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\opetr.exe" "C:\Users\Admin\AppData\Roaming\opetr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1232
- 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:1824

C:\Users\Admin\AppData\Roaming\opetr.exe
C:\Users\Admin\AppData\Roaming\opetr.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2212

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\opetr.exe.log

Filesize
612B

MD5
ca95b0db0b212857216268544c58e741

SHA1
5c2fd4ee1dc02d9412a19454562129f97bf930b5

SHA256
bdcf4429adc6ee689394b8ea1628e98bac4d0b7f8d735e5bf9e96218a41cd6f0

SHA512
c3d83412ec5c6dd7398c7ec0ae73838eed3f9e6e539771066378d74479092bc18f73deac581c3e5f053487eef1ae432a565eec2aa706c7ddf16d5855cb0e70bb

Download Submit
memory/2276-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2276-15-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/2276-14-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/2276-13-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/2276-12-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/3264-3-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/3264-6-0x0000000005730000-0x0000000005CD4000-memory.dmp

Filesize
5.6MB

Download
memory/3264-11-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/3264-5-0x0000000005110000-0x0000000005176000-memory.dmp

Filesize
408KB

Download
memory/3264-4-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/3264-0-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/3264-2-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/3264-1-0x00000000004B0000-0x00000000004E2000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads