asyncrat | aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b

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

C2

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UniFab = "C:\\Users\\Admin\\Documents\\UniFab\\Bin\\UniFab.exe餀"	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 1500	2420	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3976	2420	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	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	csc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1500	2420	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	90
PID 2420 wrote to memory of 1500	2420	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	90
PID 2420 wrote to memory of 1500	2420	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	90
PID 2420 wrote to memory of 1500	2420	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	90
PID 2420 wrote to memory of 1500	2420	aa2865178dc691edfdfc676c77a638cd165cbe9385a0ae4b8bfa16e9b9af753b.exe	90

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:2420
- 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:1500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 392
  2⤵
  - Program crash
  PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2420 -ip 2420
1⤵
PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1500-12-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/1500-17-0x0000000005C90000-0x0000000005CF6000-memory.dmp

Filesize
408KB

Download
memory/1500-15-0x0000000005BF0000-0x0000000005C8C000-memory.dmp

Filesize
624KB

Download
memory/1500-23-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/1500-21-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/1500-7-0x0000000000A50000-0x0000000000A62000-memory.dmp

Filesize
72KB

Download
memory/1500-20-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/1500-18-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/1500-16-0x0000000006240000-0x00000000067E4000-memory.dmp

Filesize
5.6MB

Download
memory/1500-11-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/2420-4-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-5-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-0-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-25-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-10-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-19-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/2420-3-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-8-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-22-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-24-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/2420-6-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2420-1-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads