asyncrat | 449149eabd216c3b638afae9af82fef24b69ede7f6cd9060ed8d85c4f5c97d98

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2024 17:23

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General

Target

setup.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-1-5-21-2721909339-1374969515-2476821579-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KasUpdater = "C:\\Users\\Admin\\Pictures\\KasperskyUpdater\\KasperskyUpdater.exe"	setup.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4756 set thread context of 4916	4756	setup.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	setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4916	csc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 4916	4756	setup.exe	86
PID 4756 wrote to memory of 4916	4756	setup.exe	86
PID 4756 wrote to memory of 4916	4756	setup.exe	86
PID 4756 wrote to memory of 4916	4756	setup.exe	86
PID 4756 wrote to memory of 4916	4756	setup.exe	86

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4756
- 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
  - Suspicious use of AdjustPrivilegeToken
  PID:4916

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

Replay Monitor

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Downloads

memory/4756-5-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/4756-1-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/4756-2-0x0000000000428000-0x0000000000441000-memory.dmp

Filesize
100KB

Download
memory/4756-3-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/4756-0-0x0000000000400000-0x00000000005EF000-memory.dmp

Filesize
1.9MB

Download
memory/4916-6-0x000000007345E000-0x000000007345F000-memory.dmp

Filesize
4KB

Download
memory/4916-4-0x00000000000D0000-0x00000000000E2000-memory.dmp

Filesize
72KB

Download
memory/4916-7-0x0000000073450000-0x0000000073C00000-memory.dmp

Filesize
7.7MB

Download
memory/4916-8-0x00000000053F0000-0x000000000548C000-memory.dmp

Filesize
624KB

Download
memory/4916-9-0x0000000005A40000-0x0000000005FE4000-memory.dmp

Filesize
5.6MB

Download
memory/4916-10-0x0000000005500000-0x0000000005566000-memory.dmp

Filesize
408KB

Download
memory/4916-11-0x0000000073450000-0x0000000073C00000-memory.dmp

Filesize
7.7MB

Download
memory/4916-12-0x000000007345E000-0x000000007345F000-memory.dmp

Filesize
4KB

Download
memory/4916-13-0x0000000073450000-0x0000000073C00000-memory.dmp

Filesize
7.7MB

Download
memory/4916-14-0x0000000073450000-0x0000000073C00000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads