asyncrat | dfe1f7602fc303b7a0f7427deca31f31aa44493ef8d129a631ce0ad770b9690b

General

Target

JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe
Size

491KB
MD5

f44d9910d716f5d7fdf542e25ca41b20
SHA1

f7dc32448961dd681c73594952ef881bbf36c7e0
SHA256

dfe1f7602fc303b7a0f7427deca31f31aa44493ef8d129a631ce0ad770b9690b
SHA512

4ede162be9f5a925513a2e9bf458cfe6db4ecb64906dc12008f2ab9fc93e92485e80fb4ed779e87ca4509abd5fdd4493e960fe25e7e0170eaea0e41c35a5af0b
SSDEEP

12288:byrjnZPxkyx8gmoYSZtIEOZU8HocYnKrTSO:baPx9dtIEOZU+ochG

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

202.55.133.118:5200

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
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1948	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe
3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1948	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	32
PID 3016 wrote to memory of 1948	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	32
PID 3016 wrote to memory of 1948	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	32
PID 3016 wrote to memory of 1948	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	32
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34
PID 3016 wrote to memory of 2852	3016	JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f44d9910d716f5d7fdf542e25ca41b20.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yywxphKidVZnL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E75.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1948
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/2852-26-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2852-24-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2852-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2852-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2852-29-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2852-27-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2852-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2852-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2852-30-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2852-22-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3016-2-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/3016-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/3016-1-0x0000000000390000-0x0000000000412000-memory.dmp

Filesize
520KB

Download
memory/3016-6-0x0000000002030000-0x0000000002066000-memory.dmp

Filesize
216KB

Download
memory/3016-5-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/3016-28-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/3016-4-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/3016-3-0x00000000005C0000-0x00000000005D6000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads