asyncrat | 5537f58e3c041fb2fbee1b76c17fe2cfb64be64e9ff6ef47e4a8f84018605b4a

Resubmissions

20-07-2024 16:25

240720-twypjsvgjp 10

20-07-2024 16:23

240720-tv4jeatdpg 10

20-07-2024 16:19

240720-tsxyvavfmp 10

Analysis

max time kernel
123s
max time network
301s
platform
windows7_x64
resource
win7-20240708-es
resource tags

arch:x64arch:x86image:win7-20240708-eslocale:es-esos:windows7-x64systemwindows
submitted
20-07-2024 16:19

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General

Target

simas.exe
Size

633.6MB
MD5

9e2c7292e4208894e629e695f976e19b
SHA1

e0193cd527a71d67bdd2440d1ac98065c9b0520d
SHA256

6bf7e2913edbb6a8fa67849bb7fe7a15b3514da1bcc387e85954ed1315fd5e6f
SHA512

a160ed48087b0e7df07d2fb7ac0e7f61b371b17eff74ba4f6059bc210045183c0be51884055a19e5747292f8e578ea0749665e34cb3cf0eeb35d1759b6381d30
SSDEEP

98304:wmJVD97VAOltrWJP8SDUTYAA56RoeXN3cJvPd4Fm0fP0:wmJ7hAatrWJP8S+YAfSkN+vPji0

Score

10^/10

asyncrat enviojulio persistence privilege_escalation rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

ENVIOJULIO

hiperconection.duckdns.org:3030

Mutex

PRMBSRGT0kqWhLMuk3qtRg

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\tiopLottt = "C:\\Users\\Admin\\Documents\\unaReversa\\simas.exe"	simas.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 2716	2612	simas.exe	30

Event Triggered Execution: Netsh Helper DLL 1 TTPs 2 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	regedit.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	regedit.exe

Runs regedit.exe 1 IoCs

pid	Process
2852	regedit.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2852	regedit.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2716	2612	simas.exe	30
PID 2612 wrote to memory of 2716	2612	simas.exe	30
PID 2612 wrote to memory of 2716	2612	simas.exe	30
PID 2612 wrote to memory of 2716	2612	simas.exe	30
PID 2612 wrote to memory of 2716	2612	simas.exe	30
PID 2612 wrote to memory of 2716	2612	simas.exe	30

C:\Users\Admin\AppData\Local\Temp\simas.exe
"C:\Users\Admin\AppData\Local\Temp\simas.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2716

C:\Windows\regedit.exe
"C:\Windows\regedit.exe"
1⤵
- Event Triggered Execution: Netsh Helper DLL
- Runs regedit.exe
- Suspicious behavior: GetForegroundWindowSpam
PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabCEF5.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2612-2-0x000000000043A000-0x0000000000453000-memory.dmp

Filesize
100KB

Download
memory/2612-0-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/2612-3-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/2612-4-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/2612-8-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/2716-7-0x00000000002C0000-0x00000000002D2000-memory.dmp

Filesize
72KB

Download
memory/2716-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-12-0x00000000002C0000-0x00000000002D2000-memory.dmp

Filesize
72KB

Download
memory/2716-10-0x00000000002C0000-0x00000000002D2000-memory.dmp

Filesize
72KB

Download
memory/2716-13-0x0000000073CAE000-0x0000000073CAF000-memory.dmp

Filesize
4KB

Download
memory/2716-14-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-5-0x00000000002C0000-0x00000000002D2000-memory.dmp

Filesize
72KB

Download
memory/2716-31-0x0000000073CAE000-0x0000000073CAF000-memory.dmp

Filesize
4KB

Download
memory/2716-32-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads