asyncrat | aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b

Analysis

max time kernel
146s
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
05-12-2024 03:03

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General

Target

aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe
Size

1.9MB
MD5

18a531099ef85a846a63b7aee12b45e7
SHA1

ccee12b82ebc5585febac7929312ee3024821db9
SHA256

aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b
SHA512

81b9b18a24882d5b2f2704f20df57719290da063dac8147e866e076d7a1591e379309dfd780a546a739688d30c5ee51f9e5599d6576a7ddd09286f10324e5ab9
SSDEEP

49152:69U35JCirYhIntmZrbQhrHqxZrbQhrHq26R5vIk:6O3vTtmZrbQhrHqxZrbQhrHq357

Score

10^/10

asyncrat chile discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

chile

formationslistcomplet2.sexidude.com:4365

Mutex

ueyroowiieyyriowowieuuurueiwiwur

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

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UniFab = "C:\\Users\\Admin\\Documents\\UniFab\\Bin\\UniFab.exe"	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4640 set thread context of 5092	4640	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1532	4640	WerFault.exe	82

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	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 5092	4640	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	91
PID 4640 wrote to memory of 5092	4640	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	91
PID 4640 wrote to memory of 5092	4640	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	91
PID 4640 wrote to memory of 5092	4640	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	91
PID 4640 wrote to memory of 5092	4640	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	91

C:\Users\Admin\AppData\Local\Temp\aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe
"C:\Users\Admin\AppData\Local\Temp\aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4640
- 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:5092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 140
  2⤵
  - Program crash
  PID:1532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4640 -ip 4640
1⤵
PID:428

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/4640-14-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-0-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-3-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-4-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-9-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-11-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-1-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/4640-6-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-5-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-16-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/4640-13-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/4640-15-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/5092-7-0x0000000000700000-0x0000000000712000-memory.dmp

Filesize
72KB

Download
memory/5092-12-0x00000000003B0000-0x00000000005BF000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads