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
17s
max time network
17s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2024 16:25

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Reason

Machine shutdown

Report Analysis Logs

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 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-1-5-21-1705699165-553239100-4129523827-1000\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 1980 set thread context of 4056	1980	simas.exe	100

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 4056	1980	simas.exe	100
PID 1980 wrote to memory of 4056	1980	simas.exe	100
PID 1980 wrote to memory of 4056	1980	simas.exe	100
PID 1980 wrote to memory of 4056	1980	simas.exe	100
PID 1980 wrote to memory of 4056	1980	simas.exe	100

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:1980
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  PID:4056

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1980-0-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/1980-1-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/1980-2-0x000000000043A000-0x0000000000453000-memory.dmp

Filesize
100KB

Download
memory/1980-3-0x0000000000400000-0x0000000000837000-memory.dmp

Filesize
4.2MB

Download
memory/4056-4-0x0000000000EA0000-0x0000000000EB2000-memory.dmp

Filesize
72KB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads