asyncrat | d6759962ca644dd8a950d33c55b7b799a731540eb73166e29257a0e4139be7f5

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 18:25

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General

Target

6002845UDOOPZE.exe
Size

301.0MB
MD5

a0101393af76c8defc685601bf00b050
SHA1

06deea9b7e544d86599c27e77b02193ba8ea65d7
SHA256

2b28db92f130ef4d71ccfbc40b2456e2f82ea645a9d493f681269fe08e277cb2
SHA512

cd59e33c5238445e5947775d57867204e8917232bd3a19787d20e269cba8dd8396ecf43f693480d4326b3725bf785b5c17e15ca7e81a836cfd5acc056e77d19a
SSDEEP

3072:Ixrfsl33+seYAlFpKb45eoUeGo2mT9Vua0Hi:67s8pKrlePZV

Score

10^/10

asyncrat nov-7(vhd)discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT 5.0.5

Botnet

NOV-7(VHD)

saddlepoint.duckdns.org:25045

Mutex

q0qeiwx9cj

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
2756	FVEo.exe
1040	FVEo.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 1860	1836	6002845UDOOPZE.exe	103
PID 2756 set thread context of 2024	2756	FVEo.exe	112
PID 1040 set thread context of 4360	1040	FVEo.exe	119

System Location Discovery: System Language Discovery 1 TTPs 15 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	FVEo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6002845UDOOPZE.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FVEo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4540	schtasks.exe
2632	schtasks.exe
2280	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	vbc.exe
Token: SeDebugPrivilege	2024	vbc.exe
Token: SeDebugPrivilege	4360	vbc.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 1072	1836	6002845UDOOPZE.exe	98
PID 1836 wrote to memory of 1072	1836	6002845UDOOPZE.exe	98
PID 1836 wrote to memory of 1072	1836	6002845UDOOPZE.exe	98
PID 1836 wrote to memory of 224	1836	6002845UDOOPZE.exe	100
PID 1836 wrote to memory of 224	1836	6002845UDOOPZE.exe	100
PID 1836 wrote to memory of 224	1836	6002845UDOOPZE.exe	100
PID 1072 wrote to memory of 2280	1072	cmd.exe	102
PID 1072 wrote to memory of 2280	1072	cmd.exe	102
PID 1072 wrote to memory of 2280	1072	cmd.exe	102
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 1836 wrote to memory of 1860	1836	6002845UDOOPZE.exe	103
PID 2756 wrote to memory of 1948	2756	FVEo.exe	107
PID 2756 wrote to memory of 1948	2756	FVEo.exe	107
PID 2756 wrote to memory of 1948	2756	FVEo.exe	107
PID 2756 wrote to memory of 4788	2756	FVEo.exe	109
PID 2756 wrote to memory of 4788	2756	FVEo.exe	109
PID 2756 wrote to memory of 4788	2756	FVEo.exe	109
PID 1948 wrote to memory of 4540	1948	cmd.exe	111
PID 1948 wrote to memory of 4540	1948	cmd.exe	111
PID 1948 wrote to memory of 4540	1948	cmd.exe	111
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 2756 wrote to memory of 2024	2756	FVEo.exe	112
PID 1040 wrote to memory of 2900	1040	FVEo.exe	114
PID 1040 wrote to memory of 2900	1040	FVEo.exe	114
PID 1040 wrote to memory of 2900	1040	FVEo.exe	114
PID 1040 wrote to memory of 1924	1040	FVEo.exe	116
PID 1040 wrote to memory of 1924	1040	FVEo.exe	116
PID 1040 wrote to memory of 1924	1040	FVEo.exe	116
PID 2900 wrote to memory of 2632	2900	cmd.exe	118
PID 2900 wrote to memory of 2632	2900	cmd.exe	118
PID 2900 wrote to memory of 2632	2900	cmd.exe	118
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119
PID 1040 wrote to memory of 4360	1040	FVEo.exe	119

C:\Users\Admin\AppData\Local\Temp\6002845UDOOPZE.exe
"C:\Users\Admin\AppData\Local\Temp\6002845UDOOPZE.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\FVEo.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1072
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\FVEo.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\6002845UDOOPZE.exe" "C:\Users\Admin\AppData\Local\Temp\FVEo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:224
- 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:1860

C:\Users\Admin\AppData\Local\Temp\FVEo.exe
C:\Users\Admin\AppData\Local\Temp\FVEo.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\FVEo.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1948
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\FVEo.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4540
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\FVEo.exe" "C:\Users\Admin\AppData\Local\Temp\FVEo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4788
- 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:2024

C:\Users\Admin\AppData\Local\Temp\FVEo.exe
C:\Users\Admin\AppData\Local\Temp\FVEo.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\FVEo.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\FVEo.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2632
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\FVEo.exe" "C:\Users\Admin\AppData\Local\Temp\FVEo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1924
- 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:4360

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\FVEo.exe.log

Filesize
612B

MD5
ca95b0db0b212857216268544c58e741

SHA1
5c2fd4ee1dc02d9412a19454562129f97bf930b5

SHA256
bdcf4429adc6ee689394b8ea1628e98bac4d0b7f8d735e5bf9e96218a41cd6f0

SHA512
c3d83412ec5c6dd7398c7ec0ae73838eed3f9e6e539771066378d74479092bc18f73deac581c3e5f053487eef1ae432a565eec2aa706c7ddf16d5855cb0e70bb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\vbc.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
memory/1836-6-0x0000000005520000-0x0000000005AC4000-memory.dmp

Filesize
5.6MB

Download
memory/1836-3-0x0000000004C50000-0x0000000004CB6000-memory.dmp

Filesize
408KB

Download
memory/1836-4-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/1836-5-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/1836-0-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/1836-12-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/1836-2-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/1836-1-0x00000000003E0000-0x0000000000408000-memory.dmp

Filesize
160KB

Download
memory/1860-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1860-10-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/1860-13-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/1860-14-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/1860-17-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads