asyncrat | 4b2ceb45bfcbe6133717057a75cb43d2897e082e31f8c349ee6dd28fd904578a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 02:00

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General

Target

449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe
Size

1.9MB
MD5

4e875a3ff28c0ef04fac6d93452183f9
SHA1

752ba98fa8471cc6c269bf9263a0335ab1c570d4
SHA256

449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98
SHA512

ae90d5a955260ab2b0b2dd80a3015ffc36a9756ccb5793a5887ceadc2b1fd289cde84131414c2afd37c16b1e315bc0bdee80c1d80c502e8e94c031f8f5c09d0c
SSDEEP

49152:qViscIkQonWfm+uHgSa5sfjFkbSxahKG4VhtPLaRc:qZNm+uHgSa5sfjFkexahvN

Score

10^/10

asyncrat 2-iconicos-diam discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

2-ICONICOS-DIAM

proyectodos307.casacam.net:8011

Mutex

DcRatMutex_qwqdanchun

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-1-5-21-3089151618-2647890268-2710988337-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KasUpdater = "C:\\Users\\Admin\\Pictures\\KasperskyUpdater\\KasperskyUpdater.exe"	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1744 set thread context of 4820	1744	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe	86

System Location Discovery: System Language Discovery 1 TTPs 2 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	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 4820	1744	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe	86
PID 1744 wrote to memory of 4820	1744	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe	86
PID 1744 wrote to memory of 4820	1744	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe	86
PID 1744 wrote to memory of 4820	1744	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe	86
PID 1744 wrote to memory of 4820	1744	449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe	86

C:\Users\Admin\AppData\Local\Temp\449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe
"C:\Users\Admin\AppData\Local\Temp\449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4820

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1744-0-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/1744-2-0x0000000000428000-0x0000000000441000-memory.dmp

Filesize
100KB

Download
memory/1744-4-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/1744-3-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/1744-6-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/4820-5-0x0000000000570000-0x0000000000582000-memory.dmp

Filesize
72KB

Download
memory/4820-7-0x0000000000220000-0x000000000042F000-memory.dmp

Filesize
2.1MB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads